-# This file is part of Autoconf. -*- Autoconf -*-
+# This file is part of Autoconf. -*- Autoconf -*-
# Programming languages support.
-# Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
#
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
# to the GPL from your modified version.
#
# Written by David MacKenzie, with help from
+# Akim Demaille, Paul Eggert,
# Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
# Roland McGrath, Noah Friedman, david d zuhn, and many others.
# ------------
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
m4_define([AC_LANG(C++)],
-[ac_ext=cc
+[ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
+# ------------------------------ #
+# 1d. The Objective C language. #
+# ------------------------------ #
+
+
+# AC_LANG(Objective C)
+# --------------------
+m4_define([AC_LANG(Objective C)],
+[ac_ext=m
+ac_cpp='$OBJCPP $CPPFLAGS'
+ac_compile='$OBJC -c $OBJCFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
+ac_link='$OBJC -o conftest$ac_exeext $OBJCFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
+ac_compiler_gnu=$ac_cv_objc_compiler_gnu
+])
+
+
+# AC_LANG_OBJC
+# ------------
+AU_DEFUN([AC_LANG_OBJC], [AC_LANG(Objective C)])
+
+
+# _AC_LANG_ABBREV(Objective C)
+# ----------------------------
+m4_define([_AC_LANG_ABBREV(Objective C)], [objc])
+
+
+# _AC_LANG_PREFIX(Objective C)
+# ----------------------------
+m4_define([_AC_LANG_PREFIX(Objective C)], [OBJC])
+
+
+
## ---------------------- ##
## 2.Producing programs. ##
## ---------------------- ##
# AC_LANG_SOURCE(C)(BODY)
# -----------------------
-# This sometimes fails to find confdefs.h, for some reason.
# We can't use '#line $LINENO "configure"' here, since
# Sun c89 (Sun WorkShop 6 update 2 C 5.3 Patch 111679-08 2002/05/09)
# rejects $LINENO greater than 32767, and some configure scripts
m4_define([AC_LANG_CALL(C)],
[AC_LANG_PROGRAM([$1
m4_if([$2], [main], ,
-[/* Override any gcc2 internal prototype to avoid an error. */
+[/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $2 ();])], [$2 ();])])
+char $2 ();])], [return $2 ();])])
# AC_LANG_FUNC_LINK_TRY(C)(FUNCTION)
#undef $1
-/* Override any gcc2 internal prototype to avoid an error. */
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
-{
#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
char $1 ();
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
-#if defined (__stub_$1) || defined (__stub___$1)
+#if defined __stub_$1 || defined __stub___$1
choke me
-#else
-char (*f) () = $1;
#endif
-#ifdef __cplusplus
-}
-#endif
-], [return f != $1;])])
+], [return $1 ();])])
# AC_LANG_BOOL_COMPILE_TRY(C)(PROLOGUE, EXPRESSION)
# -------------------------------------------------
+# Return a program that is valid if EXPRESSION is nonzero.
+# EXPRESSION must be an integer constant expression.
# Be sure to use this array to avoid `unused' warnings, which are even
# errors with `-W error'.
m4_define([AC_LANG_BOOL_COMPILE_TRY(C)],
# But we include them only after the EXPRESSION has been evaluated.
m4_define([AC_LANG_INT_SAVE(C)],
[AC_LANG_PROGRAM([$1
-long longval () { return $2; }
-unsigned long ulongval () { return $2; }
+static long int longval () { return $2; }
+static unsigned long int ulongval () { return $2; }
@%:@include <stdio.h>
@%:@include <stdlib.h>],
[
FILE *f = fopen ("conftest.val", "w");
if (! f)
- exit (1);
+ return 1;
if (($2) < 0)
{
- long i = longval ();
+ long int i = longval ();
if (i != ($2))
- exit (1);
+ return 1;
fprintf (f, "%ld\n", i);
}
else
{
- unsigned long i = ulongval ();
+ unsigned long int i = ulongval ();
if (i != ($2))
- exit (1);
+ return 1;
fprintf (f, "%lu\n", i);
}
- exit (ferror (f) || fclose (f) != 0);
+ return ferror (f) || fclose (f) != 0;
])])
+# ------------------------- #
+# 2d. Objective C sources. #
+# ------------------------- #
+
+# AC_LANG_SOURCE(Objective C)(BODY)
+# ---------------------------------
+m4_copy([AC_LANG_SOURCE(C)], [AC_LANG_SOURCE(Objective C)])
+
+
+# AC_LANG_PROGRAM(Objective C)([PROLOGUE], [BODY])
+# ------------------------------------------------
+m4_copy([AC_LANG_PROGRAM(C)], [AC_LANG_PROGRAM(Objective C)])
+
+
+# AC_LANG_CALL(Objective C)(PROLOGUE, FUNCTION)
+# ---------------------------------------------
+m4_copy([AC_LANG_CALL(C)], [AC_LANG_CALL(Objective C)])
+
+
+# AC_LANG_FUNC_LINK_TRY(Objective C)(FUNCTION)
+# --------------------------------------------
+m4_copy([AC_LANG_FUNC_LINK_TRY(C)], [AC_LANG_FUNC_LINK_TRY(Objective C)])
+
+
+# AC_LANG_BOOL_COMPILE_TRY(Objective C)(PROLOGUE, EXPRESSION)
+# -----------------------------------------------------------
+m4_copy([AC_LANG_BOOL_COMPILE_TRY(C)], [AC_LANG_BOOL_COMPILE_TRY(Objective C)])
+
+
+# AC_LANG_INT_SAVE(Objective C)(PROLOGUE, EXPRESSION)
+# ---------------------------------------------------
+m4_copy([AC_LANG_INT_SAVE(C)], [AC_LANG_INT_SAVE(Objective C)])
+
+
+
## -------------------------------------------- ##
## 3. Looking for Compilers and Preprocessors. ##
## -------------------------------------------- ##
# _AC_ARG_VAR_CPPFLAGS
# --------------------
# Document and register CPPFLAGS, which is used by
-# AC_PROG_{CC, CPP, CXX, CXXCPP}.
+# AC_PROG_{CC, CPP, CXX, CXXCPP, OBJC, OBJCPP}.
AC_DEFUN([_AC_ARG_VAR_CPPFLAGS],
[AC_ARG_VAR([CPPFLAGS],
- [C/C++ preprocessor flags, e.g. -I<include dir> if you have
- headers in a nonstandard directory <include dir>])])
+ [C/C++/Objective C preprocessor flags, e.g. -I<include dir>
+ if you have headers in a nonstandard directory <include dir>])])
# _AC_ARG_VAR_LDFLAGS
# -------------------
# Document and register LDFLAGS, which is used by
-# AC_PROG_{CC, CXX, F77}.
+# AC_PROG_{CC, CXX, F77, FC, OBJC}.
AC_DEFUN([_AC_ARG_VAR_LDFLAGS],
[AC_ARG_VAR([LDFLAGS],
[linker flags, e.g. -L<lib dir> if you have libraries in a
nonstandard directory <lib dir>])])
+# _AC_ARG_VAR_LIBS
+# ----------------
+# Document and register LIBS, which is used by
+# AC_PROG_{CC, CXX, F77, FC, OBJS}.
+AC_DEFUN([_AC_ARG_VAR_LIBS],
+[AC_ARG_VAR([LIBS],
+ [libraries to pass to the linker, e.g. -l<library>])])
+
# AC_LANG_PREPROC(C)
# -------------------
# -----------------------------------------------
# Check if $ac_cpp is a working preprocessor that can flag absent
# includes either by the exit status or by warnings.
-# Set ac_cpp_err to a non-empty value if the preprocessor failed.
# This macro is for all languages, not only C.
AC_DEFUN([_AC_PROG_PREPROC_WORKS_IFELSE],
[ac_preproc_ok=false
[# Broken: fails on valid input.
continue])
- # OK, works on sane cases. Now check whether non-existent headers
+ # OK, works on sane cases. Now check whether nonexistent headers
# can be detected and how.
_AC_PREPROC_IFELSE([AC_LANG_SOURCE([[@%:@include <ac_nonexistent.h>]])],
[# Broken: success on invalid input.
AC_ARG_VAR([CC], [C compiler command])dnl
AC_ARG_VAR([CFLAGS], [C compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
m4_ifval([$1],
[AC_CHECK_TOOLS(CC, [$1])],
[AC_CHECK_TOOL(CC, gcc)
if test -z "$CC"; then
- AC_CHECK_TOOL(CC, cc)
+ dnl Here we want:
+ dnl AC_CHECK_TOOL(CC, cc)
+ dnl but without the check for a tool without the prefix.
+ dnl Until the check is removed from there, copy the code:
+ if test -n "$ac_tool_prefix"; then
+ AC_CHECK_PROG(CC, [${ac_tool_prefix}cc], [${ac_tool_prefix}cc])
+ fi
fi
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
fi
if test -z "$CC"; then
- AC_CHECK_TOOLS(CC, cl)
+ AC_CHECK_TOOLS(CC, cl.exe)
fi
])
test -z "$CC" && AC_MSG_FAILURE([no acceptable C compiler found in \$PATH])
# Provide some information about the compiler.
-echo "$as_me:$LINENO:" \
- "checking for _AC_LANG compiler version" >&AS_MESSAGE_LOG_FD
+_AS_ECHO_LOG([checking for _AC_LANG compiler version])
ac_compiler=`set X $ac_compile; echo $[2]`
-_AC_EVAL([$ac_compiler --version </dev/null >&AS_MESSAGE_LOG_FD])
-_AC_EVAL([$ac_compiler -v </dev/null >&AS_MESSAGE_LOG_FD])
-_AC_EVAL([$ac_compiler -V </dev/null >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
_AC_LANG_COMPILER_GNU
GCC=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_CC_G
-_AC_PROG_CC_STDC
-# Some people use a C++ compiler to compile C. Since we use `exit',
-# in C++ we need to declare it. In case someone uses the same compiler
-# for both compiling C and C++ we need to have the C++ compiler decide
-# the declaration of exit, since it's the most demanding environment.
-_AC_COMPILE_IFELSE([@%:@ifndef __cplusplus
- choke me
-@%:@endif],
- [_AC_PROG_CXX_EXIT_DECLARATION])
+_AC_PROG_CC_C89
AC_LANG_POP(C)dnl
])# AC_PROG_CC
# Check whether -g works, even if CFLAGS is set, in case the package
# plays around with CFLAGS (such as to build both debugging and normal
# versions of a library), tasteless as that idea is.
+# Don't consider -g to work if it generates warnings when plain compiles don't.
m4_define([_AC_PROG_CC_G],
[ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
-CFLAGS="$CFLAGS -g"
AC_CACHE_CHECK(whether $CC accepts -g, ac_cv_prog_cc_g,
- [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cc_g=yes],
- [ac_cv_prog_cc_g=no])])
+ [ac_save_c_werror_flag=$ac_c_werror_flag
+ ac_c_werror_flag=yes
+ ac_cv_prog_cc_g=no
+ CFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_cc_g=yes],
+ [CFLAGS=""
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [],
+ [ac_c_werror_flag=$ac_save_c_werror_flag
+ CFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_cc_g=yes])])])
+ ac_c_werror_flag=$ac_save_c_werror_flag])
if test "$ac_test_CFLAGS" = set; then
CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
# -----------------------
AN_FUNCTION([ioctl], [AC_PROG_GCC_TRADITIONAL])
AC_DEFUN([AC_PROG_GCC_TRADITIONAL],
-[if test $ac_cv_c_compiler_gnu = yes; then
+[AC_REQUIRE([AC_PROG_CC])dnl
+if test $ac_cv_c_compiler_gnu = yes; then
AC_CACHE_CHECK(whether $CC needs -traditional,
ac_cv_prog_gcc_traditional,
[ ac_pattern="Autoconf.*'x'"
# Make sure it works both with $CC and with simple cc.
# We do the test twice because some compilers refuse to overwrite an
# existing .o file with -o, though they will create one.
-ac_try='$CC -c conftest.$ac_ext -o conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
-if AC_TRY_EVAL(ac_try) &&
- test -f conftest.$ac_objext && AC_TRY_EVAL(ac_try);
+ac_try='$CC -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
+rm -f conftest2.*
+if _AC_DO_VAR(ac_try) &&
+ test -f conftest2.$ac_objext && _AC_DO_VAR(ac_try);
then
eval ac_cv_prog_cc_${ac_cc}_c_o=yes
if test "x$CC" != xcc; then
# Test first that cc exists at all.
- if AC_TRY_COMMAND(cc -c conftest.$ac_ext >&AS_MESSAGE_LOG_FD); then
- ac_try='cc -c conftest.$ac_ext -o conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
- if AC_TRY_EVAL(ac_try) &&
- test -f conftest.$ac_objext && AC_TRY_EVAL(ac_try);
+ if _AC_DO_TOKENS(cc -c conftest.$ac_ext >&AS_MESSAGE_LOG_FD); then
+ ac_try='cc -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
+ rm -f conftest2.*
+ if _AC_DO_VAR(ac_try) &&
+ test -f conftest2.$ac_objext && _AC_DO_VAR(ac_try);
then
# cc works too.
:
else
eval ac_cv_prog_cc_${ac_cc}_c_o=no
fi
-rm -f conftest*
+rm -f core conftest*
])dnl
-if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = yes"; then
+if eval test \$ac_cv_prog_cc_${ac_cc}_c_o = yes; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_ARG_VAR([CXX], [C++ compiler command])dnl
AC_ARG_VAR([CXXFLAGS], [C++ compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
-AC_CHECK_TOOLS(CXX,
- [$CCC m4_default([$1],
- [g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC])],
- g++)
-
+_AC_ARG_VAR_PRECIOUS([CCC])dnl
+if test -z "$CXX"; then
+ if test -n "$CCC"; then
+ CXX=$CCC
+ else
+ AC_CHECK_TOOLS(CXX,
+ [m4_default([$1],
+ [g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC])],
+ g++)
+ fi
+fi
# Provide some information about the compiler.
-echo "$as_me:$LINENO:" \
- "checking for _AC_LANG compiler version" >&AS_MESSAGE_LOG_FD
+_AS_ECHO_LOG([checking for _AC_LANG compiler version])
ac_compiler=`set X $ac_compile; echo $[2]`
-_AC_EVAL([$ac_compiler --version </dev/null >&AS_MESSAGE_LOG_FD])
-_AC_EVAL([$ac_compiler -v </dev/null >&AS_MESSAGE_LOG_FD])
-_AC_EVAL([$ac_compiler -V </dev/null >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
_AC_LANG_COMPILER_GNU
GXX=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_CXX_G
-_AC_PROG_CXX_EXIT_DECLARATION
AC_LANG_POP(C++)dnl
])# AC_PROG_CXX
# Check whether -g works, even if CXXFLAGS is set, in case the package
# plays around with CXXFLAGS (such as to build both debugging and
# normal versions of a library), tasteless as that idea is.
+# Don't consider -g to work if it generates warnings when plain compiles don't.
m4_define([_AC_PROG_CXX_G],
[ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
-CXXFLAGS="-g"
AC_CACHE_CHECK(whether $CXX accepts -g, ac_cv_prog_cxx_g,
- [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
- [ac_cv_prog_cxx_g=yes],
- [ac_cv_prog_cxx_g=no])])
+ [ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+ ac_cxx_werror_flag=yes
+ ac_cv_prog_cxx_g=no
+ CXXFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_cxx_g=yes],
+ [CXXFLAGS=""
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [],
+ [ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+ CXXFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_cxx_g=yes])])])
+ ac_cxx_werror_flag=$ac_save_cxx_werror_flag])
if test "$ac_test_CXXFLAGS" = set; then
CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
if test "$GXX" = yes; then
- CXXFLAGS="$CXXFLAGS -g -O2"
+ CXXFLAGS="-g -O2"
else
- CXXFLAGS="$CXXFLAGS -g"
+ CXXFLAGS="-g"
fi
else
if test "$GXX" = yes; then
])# _AC_PROG_CXX_G
-# _AC_PROG_CXX_EXIT_DECLARATION
-# -----------------------------
-# If <stdlib.h> doesn't already provide a valid prototype for exit,
-# determine the appropriate prototype and put it in confdefs.h.
-# This macro is run only when testing a C++ compiler, but it generates
-# a prototype that is also appropriate for C compilers in order to
-# support a mixed C/C++ configuration environment.
-# We don't need to worry about this for C, since we include <stdlib.h>
-# if it is available, and that method works for all C compilers.
-m4_define([_AC_PROG_CXX_EXIT_DECLARATION],
-[for ac_declaration in \
- '' \
- 'extern "C" void std::exit (int) throw (); using std::exit;' \
- 'extern "C" void std::exit (int); using std::exit;' \
- 'extern "C" void exit (int) throw ();' \
- 'extern "C" void exit (int);' \
- 'void exit (int);'
-do
- _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration
-@%:@include <stdlib.h>],
- [exit (42);])],
- [],
- [continue])
- _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration],
- [exit (42);])],
- [break])
-done
-rm -f conftest*
-if test -n "$ac_declaration"; then
- echo '#ifdef __cplusplus' >>confdefs.h
- echo $ac_declaration >>confdefs.h
- echo '#endif' >>confdefs.h
+# AC_PROG_CXX_C_O
+# ---------------
+# Test if the C++ compiler accepts the options `-c' and `-o'
+# simultaneously, and define `CXX_NO_MINUS_C_MINUS_O' if it does not.
+AC_DEFUN([AC_PROG_CXX_C_O],
+[AC_REQUIRE([AC_PROG_CXX])dnl
+AC_LANG_PUSH([C++])dnl
+AC_CACHE_CHECK([whether $CXX understands -c and -o together],
+ [ac_cv_prog_cxx_c_o],
+[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+# We test twice because some compilers refuse to overwrite an existing
+# `.o' file with `-o', although they will create one.
+ac_try='$CXX $CXXFLAGS -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
+rm -f conftest2.*
+if _AC_DO_VAR(ac_try) &&
+ test -f conftest2.$ac_objext &&
+ _AC_DO_VAR(ac_try); then
+ ac_cv_prog_cxx_c_o=yes
+else
+ ac_cv_prog_cxx_c_o=no
fi
-])# _AC_PROG_CXX_EXIT_DECLARATION
+rm -f conftest*])
+if test $ac_cv_prog_cxx_c_o = no; then
+ AC_DEFINE(CXX_NO_MINUS_C_MINUS_O, 1,
+ [Define to 1 if your C++ compiler doesn't accept
+ -c and -o together.])
+fi
+AC_LANG_POP([C++])dnl
+])# AC_PROG_CXX_C_O
+
+
+# ------------------------------ #
+# 3d. The Objective C compiler. #
+# ------------------------------ #
+
+
+# AC_LANG_PREPROC(Objective C)
+# ----------------------------
+# Find the Objective C preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able.
+AC_DEFUN([AC_LANG_PREPROC(Objective C)],
+[AC_REQUIRE([AC_PROG_OBJCPP])])
+
+
+# AC_PROG_OBJCPP
+# --------------
+# Find a working Objective C preprocessor.
+AC_DEFUN([AC_PROG_OBJCPP],
+[AC_REQUIRE([AC_PROG_OBJC])dnl
+AC_ARG_VAR([OBJCPP], [Objective C preprocessor])dnl
+_AC_ARG_VAR_CPPFLAGS()dnl
+AC_LANG_PUSH(Objective C)dnl
+AC_MSG_CHECKING([how to run the Objective C preprocessor])
+if test -z "$OBJCPP"; then
+ AC_CACHE_VAL(ac_cv_prog_OBJCPP,
+ [dnl
+ # Double quotes because OBJCPP needs to be expanded
+ for OBJCPP in "$OBJC -E" "/lib/cpp"
+ do
+ _AC_PROG_PREPROC_WORKS_IFELSE([break])
+ done
+ ac_cv_prog_OBJCPP=$OBJCPP
+ ])dnl
+ OBJCPP=$ac_cv_prog_OBJCPP
+else
+ ac_cv_prog_OBJCPP=$OBJCPP
+fi
+AC_MSG_RESULT([$OBJCPP])
+_AC_PROG_PREPROC_WORKS_IFELSE([],
+ [AC_MSG_FAILURE([Objective C preprocessor "$OBJCPP" fails sanity check])])
+AC_SUBST(OBJCPP)dnl
+AC_LANG_POP(Objective C)dnl
+])# AC_PROG_OBJCPP
+
+
+# AC_LANG_COMPILER(Objective C)
+# -----------------------------
+# Find the Objective C compiler. Must be AC_DEFUN'd to be AC_REQUIRE'able.
+AC_DEFUN([AC_LANG_COMPILER(Objective C)],
+[AC_REQUIRE([AC_PROG_OBJC])])
+
+
+
+# AC_PROG_OBJC([LIST-OF-COMPILERS])
+# ---------------------------------
+# LIST-OF-COMPILERS is a space separated list of Objective C compilers to
+# search for (if not specified, a default list is used). This just gives
+# the user an opportunity to specify an alternative search list for the
+# Objective C compiler.
+# objcc StepStone Objective-C compiler (also "standard" name for OBJC)
+# objc David Stes' POC. If you installed this, you likely want it.
+# cc Native C compiler (for instance, Apple).
+# CC You never know.
+AN_MAKEVAR([OBJC], [AC_PROG_OBJC])
+AN_PROGRAM([objcc], [AC_PROG_OBJC])
+AN_PROGRAM([objc], [AC_PROG_OBJC])
+AC_DEFUN([AC_PROG_OBJC],
+[AC_LANG_PUSH(Objective C)dnl
+AC_ARG_VAR([OBJC], [Objective C compiler command])dnl
+AC_ARG_VAR([OBJCFLAGS], [Objective C compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+_AC_ARG_VAR_LIBS()dnl
+_AC_ARG_VAR_CPPFLAGS()dnl
+_AC_ARG_VAR_PRECIOUS([OBJC])dnl
+AC_CHECK_TOOLS(OBJC,
+ [m4_default([$1], [gcc objcc objc cc CC])],
+ gcc)
+# Provide some information about the compiler.
+_AS_ECHO_LOG([checking for _AC_LANG compiler version])
+ac_compiler=`set X $ac_compile; echo $[2]`
+_AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
+_AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
+
+m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
+m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
+_AC_LANG_COMPILER_GNU
+GOBJC=`test $ac_compiler_gnu = yes && echo yes`
+_AC_PROG_OBJC_G
+AC_LANG_POP(Objective C)dnl
+])# AC_PROG_OBJC
+
+
+# _AC_PROG_OBJC_G
+# ---------------
+# Check whether -g works, even if OBJCFLAGS is set, in case the package
+# plays around with OBJCFLAGS (such as to build both debugging and
+# normal versions of a library), tasteless as that idea is.
+# Don't consider -g to work if it generates warnings when plain compiles don't.
+m4_define([_AC_PROG_OBJC_G],
+[ac_test_OBJCFLAGS=${OBJCFLAGS+set}
+ac_save_OBJCFLAGS=$OBJCFLAGS
+AC_CACHE_CHECK(whether $OBJC accepts -g, ac_cv_prog_objc_g,
+ [ac_save_objc_werror_flag=$ac_objc_werror_flag
+ ac_objc_werror_flag=yes
+ ac_cv_prog_objc_g=no
+ OBJCFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_objc_g=yes],
+ [OBJCFLAGS=""
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [],
+ [ac_objc_werror_flag=$ac_save_objc_werror_flag
+ OBJCFLAGS="-g"
+ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ [ac_cv_prog_objc_g=yes])])])
+ ac_objc_werror_flag=$ac_save_objc_werror_flag])
+if test "$ac_test_OBJCFLAGS" = set; then
+ OBJCFLAGS=$ac_save_OBJCFLAGS
+elif test $ac_cv_prog_objc_g = yes; then
+ if test "$GOBJC" = yes; then
+ OBJCFLAGS="-g -O2"
+ else
+ OBJCFLAGS="-g"
+ fi
+else
+ if test "$GOBJC" = yes; then
+ OBJCFLAGS="-O2"
+ else
+ OBJCFLAGS=
+ fi
+fi[]dnl
+])# _AC_PROG_OBJC_G
# 4b. C compiler characteristics. #
# -------------------------------- #
-# _AC_PROG_CC_STDC
-# ----------------
-# If the C compiler in not in ANSI C mode by default, try to add an
-# option to output variable @code{CC} to make it so. This macro tries
-# various options that select ANSI C on some system or another. It
-# considers the compiler to be in ANSI C mode if it handles function
-# prototypes correctly.
-AC_DEFUN([_AC_PROG_CC_STDC],
-[AC_MSG_CHECKING([for $CC option to accept ANSI C])
-AC_CACHE_VAL(ac_cv_prog_cc_stdc,
-[ac_cv_prog_cc_stdc=no
-ac_save_CC=$CC
-AC_LANG_CONFTEST([AC_LANG_PROGRAM(
+# _AC_PROG_CC_C89 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE])
+# ----------------------------------------------------------------
+# If the C compiler is not in ANSI C89 (ISO C90) mode by default, try
+# to add an option to output variable CC to make it so. This macro
+# tries various options that select ANSI C89 on some system or
+# another. It considers the compiler to be in ANSI C89 mode if it
+# handles function prototypes correctly.
+AC_DEFUN([_AC_PROG_CC_C89],
+[_AC_C_STD_TRY([c89],
[[#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
function prototypes and stuff, but not '\xHH' hex character constants.
These don't provoke an error unfortunately, instead are silently treated
- as 'x'. The following induces an error, until -std1 is added to get
+ as 'x'. The following induces an error, until -std is added to get
proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
array size at least. It's necessary to write '\x00'==0 to get something
- that's true only with -std1. */
+ that's true only with -std. */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+ inside strings and character constants. */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;]],
-[[return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];]])])
-# Don't try gcc -ansi; that turns off useful extensions and
-# breaks some systems' header files.
-# AIX -qlanglvl=ansi
-# Ultrix and OSF/1 -std1
-# HP-UX 10.20 and later -Ae
-# HP-UX older versions -Aa -D_HPUX_SOURCE
-# SVR4 -Xc -D__EXTENSIONS__
-for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+[[return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];]],
+dnl Don't try gcc -ansi; that turns off useful extensions and
+dnl breaks some systems' header files.
+dnl AIX circa 2003 -qlanglvl=extc89
+dnl old AIX -qlanglvl=ansi
+dnl Ultrix, OSF/1, Tru64 -std
+dnl HP-UX 10.20 and later -Ae
+dnl HP-UX older versions -Aa -D_HPUX_SOURCE
+dnl SVR4 -Xc -D__EXTENSIONS__
+[-qlanglvl=extc89 -qlanglvl=ansi -std \
+ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"], [$1], [$2])[]dnl
+])# _AC_PROG_CC_C89
+
+
+# _AC_C_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST,
+# ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE)
+# --------------------------------------------------------------
+# Check whether the C compiler accepts features of STANDARD (e.g `c89', `c99')
+# by trying to compile a program of TEST-PROLOGUE and TEST-BODY. If this fails,
+# try again with each compiler option in the space-separated OPTION-LIST; if one
+# helps, append it to CC. If eventually successful, run ACTION-IF-AVAILABLE,
+# else ACTION-IF-UNAVAILABLE.
+AC_DEFUN([_AC_C_STD_TRY],
+[AC_MSG_CHECKING([for $CC option to accept ISO ]m4_translit($1, [c], [C]))
+AC_CACHE_VAL(ac_cv_prog_cc_$1,
+[ac_cv_prog_cc_$1=no
+ac_save_CC=$CC
+AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])])
+for ac_arg in '' $4
do
CC="$ac_save_CC $ac_arg"
- _AC_COMPILE_IFELSE([],
- [ac_cv_prog_cc_stdc=$ac_arg
-break])
+ _AC_COMPILE_IFELSE([], [ac_cv_prog_cc_$1=$ac_arg])
+ test "x$ac_cv_prog_cc_$1" != "xno" && break
done
-rm -f conftest.$ac_ext conftest.$ac_objext
+rm -f conftest.$ac_ext
CC=$ac_save_CC
-])
-case "x$ac_cv_prog_cc_stdc" in
- x|xno)
+])# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_$1" in
+ x)
AC_MSG_RESULT([none needed]) ;;
+ xno)
+ AC_MSG_RESULT([unsupported]) ;;
*)
- AC_MSG_RESULT([$ac_cv_prog_cc_stdc])
- CC="$CC $ac_cv_prog_cc_stdc" ;;
+ CC="$CC $ac_cv_prog_cc_$1"
+ AC_MSG_RESULT([$ac_cv_prog_cc_$1]) ;;
esac
-])# _AC_PROG_CC_STDC
+AS_IF([test "x$ac_cv_prog_cc_$1" != xno], [$5], [$6])
+])# _AC_C_STD_TRY
+
+
+# _AC_PROG_CC_C99 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE])
+# ----------------------------------------------------------------
+# If the C compiler is not in ISO C99 mode by default, try to add an
+# option to output variable CC to make it so. This macro tries
+# various options that select ISO C99 on some system or another. It
+# considers the compiler to be in ISO C99 mode if it handles _Bool,
+# // comments, flexible array members, inline, long long int, mixed
+# code and declarations, named initialization of structs, restrict,
+# va_copy, varargs macros, variable declarations in for loops and
+# variable length arrays.
+AC_DEFUN([_AC_PROG_CC_C99],
+[_AC_C_STD_TRY([c99],
+[[#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <stdio.h>
+
+// Check varargs macros. These examples are taken from C99 6.10.3.5.
+#define debug(...) fprintf (stderr, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+ int x = 1234;
+ int y = 5678;
+ debug ("Flag");
+ debug ("X = %d\n", x);
+ showlist (The first, second, and third items.);
+ report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+ your preprocessor is broken;
+#endif
+#if BIG_OK
+#else
+ your preprocessor is broken;
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+ int datasize;
+ double data[];
+};
+
+struct named_init {
+ int number;
+ const wchar_t *name;
+ double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+ // See if C++-style comments work.
+ // Iterate through items via the restricted pointer.
+ // Also check for declarations in for loops.
+ for (unsigned int i = 0; *(text+i) != '\0'; ++i)
+ continue;
+ return 0;
+}
+
+// Check varargs and va_copy.
+static void
+test_varargs (const char *format, ...)
+{
+ va_list args;
+ va_start (args, format);
+ va_list args_copy;
+ va_copy (args_copy, args);
+
+ const char *str;
+ int number;
+ float fnumber;
+
+ while (*format)
+ {
+ switch (*format++)
+ {
+ case 's': // string
+ str = va_arg (args_copy, const char *);
+ break;
+ case 'd': // int
+ number = va_arg (args_copy, int);
+ break;
+ case 'f': // float
+ fnumber = va_arg (args_copy, double);
+ break;
+ default:
+ break;
+ }
+ }
+ va_end (args_copy);
+ va_end (args);
+}
+]],
+[[
+ // Check bool.
+ _Bool success = false;
+
+ // Check restrict.
+ if (test_restrict ("String literal") == 0)
+ success = true;
+ char *restrict newvar = "Another string";
+
+ // Check varargs.
+ test_varargs ("s, d' f .", "string", 65, 34.234);
+ test_varargs_macros ();
+
+ // Check flexible array members.
+ struct incomplete_array *ia =
+ malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+ ia->datasize = 10;
+ for (int i = 0; i < ia->datasize; ++i)
+ ia->data[i] = i * 1.234;
+
+ // Check named initializers.
+ struct named_init ni = {
+ .number = 34,
+ .name = L"Test wide string",
+ .average = 543.34343,
+ };
+
+ ni.number = 58;
+
+ int dynamic_array[ni.number];
+ dynamic_array[ni.number - 1] = 543;
+
+ // work around unused variable warnings
+ return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
+ || dynamic_array[ni.number - 1] != 543);
+]],
+dnl Try
+dnl GCC -std=gnu99 (unused restrictive modes: -std=c99 -std=iso9899:1999)
+dnl AIX -qlanglvl=extc99 (unused restrictive mode: -qlanglvl=stdc99)
+dnl Intel ICC -c99
+dnl IRIX -c99
+dnl Solaris (unused because it causes the compiler to assume C99 semantics for
+dnl library functions, and this is invalid before Solaris 10: -xc99)
+dnl Tru64 -c99
+dnl with extended modes being tried first.
+[[-std=gnu99 -c99 -qlanglvl=extc99]], [$1], [$2])[]dnl
+])# _AC_PROG_CC_C99
+
+
+# AC_PROG_CC_C89
+# --------------
+AC_DEFUN([AC_PROG_CC_C89],
+[ AC_REQUIRE([AC_PROG_CC])dnl
+ _AC_PROG_CC_C89
+])
+
+
+# AC_PROG_CC_C99
+# --------------
+AC_DEFUN([AC_PROG_CC_C99],
+[ AC_REQUIRE([AC_PROG_CC])dnl
+ _AC_PROG_CC_C99
+])
# AC_PROG_CC_STDC
# ---------------
-# Has been merged into AC_PROG_CC.
-AU_DEFUN([AC_PROG_CC_STDC], [])
+AC_DEFUN([AC_PROG_CC_STDC],
+[ AC_REQUIRE([AC_PROG_CC])dnl
+ AS_CASE([$ac_cv_prog_cc_stdc],
+ [no], [ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no],
+ [_AC_PROG_CC_C99([ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99],
+ [_AC_PROG_CC_C89([ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89],
+ [ac_cv_prog_cc_stdc=no])])])dnl
+ AC_MSG_CHECKING([for $CC option to accept ISO Standard C])
+ AC_CACHE_VAL([ac_cv_prog_cc_stdc], [])
+ AS_CASE([$ac_cv_prog_cc_stdc],
+ [no], [AC_MSG_RESULT([unsupported])],
+ [''], [AC_MSG_RESULT([none needed])],
+ [AC_MSG_RESULT([$ac_cv_prog_cc_stdc])])
+])
# AC_C_BACKSLASH_A
])# AC_C_CHAR_UNSIGNED
-# AC_C_LONG_DOUBLE
-# ----------------
-AC_DEFUN([AC_C_LONG_DOUBLE],
-[AC_CACHE_CHECK(
- [for working long double with more range or precision than double],
- [ac_cv_c_long_double],
- [AC_COMPILE_IFELSE(
- [AC_LANG_BOOL_COMPILE_TRY(
- [#include <float.h>
- long double foo = 0.0;],
- [/* Using '|' rather than '||' catches a GCC 2.95.2 x86 bug. */
- (DBL_MAX < LDBL_MAX) | (LDBL_EPSILON < DBL_EPSILON)
- | (DBL_MAX_EXP < LDBL_MAX_EXP) | (DBL_MANT_DIG < LDBL_MANT_DIG)])],
- ac_cv_c_long_double=yes,
- ac_cv_c_long_double=no)])
-if test $ac_cv_c_long_double = yes; then
- AC_DEFINE(HAVE_LONG_DOUBLE, 1,
- [Define to 1 if long double works and has more range or precision than double.])
-fi
-])# AC_C_LONG_DOUBLE
-
-
# AC_C_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE], [ACTION-IF-UNKNOWN])
# -------------------------------------------------------------------------
AC_DEFUN([AC_C_BIGENDIAN],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/types.h>
#include <sys/param.h>
],
-[#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
+[#if ! (defined BYTE_ORDER && defined BIG_ENDIAN && defined LITTLE_ENDIAN \
+ && BYTE_ORDER && BIG_ENDIAN && LITTLE_ENDIAN)
bogus endian macros
#endif
])],
])], [ac_cv_c_bigendian=yes], [ac_cv_c_bigendian=no])],
[# It does not; compile a test program.
AC_RUN_IFELSE(
-[AC_LANG_SOURCE([[int
-main ()
-{
+[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[
/* Are we little or big endian? From Harbison&Steele. */
union
{
- long l;
- char c[sizeof (long)];
+ long int l;
+ char c[sizeof (long int)];
} u;
u.l = 1;
- exit (u.c[sizeof (long) - 1] == 1);
-}]])],
+ return u.c[sizeof (long int) - 1] == 1;
+]])],
[ac_cv_c_bigendian=no],
[ac_cv_c_bigendian=yes],
[# try to guess the endianness by grepping values into an object file
ac_cv_c_bigendian=unknown
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-[[short ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
-short ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
+[[short int ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
+short int ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
-short ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
-short ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
+short int ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
+short int ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
void _ebcdic () { char *s = (char *) ebcdic_mm; s = (char *) ebcdic_ii; }]],
[[ _ascii (); _ebcdic (); ]])],
[if grep BIGenDianSyS conftest.$ac_objext >/dev/null ; then
$ac_kw foo_t foo () {return 0; }
#endif
])],
- [ac_cv_c_inline=$ac_kw; break])
+ [ac_cv_c_inline=$ac_kw])
+ test "$ac_cv_c_inline" != no && break
done
])
AH_VERBATIM([inline],
#ifndef __cplusplus
/* Ultrix mips cc rejects this. */
typedef int charset[2];
- const charset x;
+ const charset cs;
/* SunOS 4.1.1 cc rejects this. */
- char const *const *ccp;
- char **p;
+ char const *const *pcpcc;
+ char **ppc;
/* NEC SVR4.0.2 mips cc rejects this. */
struct point {int x, y;};
static struct point const zero = {0,0};
an arm of an if-expression whose if-part is not a constant
expression */
const char *g = "string";
- ccp = &g + (g ? g-g : 0);
+ pcpcc = &g + (g ? g-g : 0);
/* HPUX 7.0 cc rejects these. */
- ++ccp;
- p = (char**) ccp;
- ccp = (char const *const *) p;
+ ++pcpcc;
+ ppc = (char**) pcpcc;
+ pcpcc = (char const *const *) ppc;
{ /* SCO 3.2v4 cc rejects this. */
char *t;
char const *s = 0 ? (char *) 0 : (char const *) 0;
*t++ = 0;
+ if (s) return 0;
}
{ /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */
int x[] = {25, 17};
}
{ /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
const int foo = 10;
+ if (!foo) return 0;
}
+ return !cs[0] && !zero.x;
#endif
]])],
[ac_cv_c_const=yes],
# AC_C_RESTRICT
# -------------
# based on acx_restrict.m4, from the GNU Autoconf Macro Archive at:
-# http://www.gnu.org/software/ac-archive/htmldoc/acx_restrict.html
+# http://autoconf-archive.cryp.to/acx_restrict.html
#
# Determine whether the C/C++ compiler supports the "restrict" keyword
# introduced in ANSI C99, or an equivalent. Do nothing if the compiler
# Try the official restrict keyword, then gcc's __restrict, and
# the less common variants.
for ac_kw in restrict __restrict __restrict__ _Restrict; do
- AC_COMPILE_IFELSE([AC_LANG_SOURCE(
- [float * $ac_kw x;])],
- [ac_cv_c_restrict=$ac_kw; break])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+ [[typedef int * int_ptr;
+ int foo (int_ptr $ac_kw ip) {
+ return ip[0];
+ }]],
+ [[int s[1];
+ int * $ac_kw t = s;
+ t[0] = 0;
+ return foo(t)]])],
+ [ac_cv_c_restrict=$ac_kw])
+ test "$ac_cv_c_restrict" != no && break
done
])
case $ac_cv_c_restrict in
[AC_CACHE_CHECK([for working volatile], ac_cv_c_volatile,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
volatile int x;
-int * volatile y;])],
+int * volatile y = (int *) 0;
+return !x && !y;])],
[ac_cv_c_volatile=yes],
[ac_cv_c_volatile=no])])
if test $ac_cv_c_volatile = no; then
AC_DEFUN([AC_C_PROTOTYPES],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_MSG_CHECKING([for function prototypes])
-if test "$ac_cv_prog_cc_stdc" != no; then
+if test "$ac_cv_prog_cc_c89" != no; then
AC_MSG_RESULT([yes])
AC_DEFINE(PROTOTYPES, 1,
[Define to 1 if the C compiler supports function prototypes.])
AC_MSG_RESULT([no])
fi
])# AC_C_PROTOTYPES
+
+
+# AC_C_FLEXIBLE_ARRAY_MEMBER
+# --------------------------
+# Check whether the C compiler supports flexible array members.
+AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER],
+[
+ AC_CACHE_CHECK([for flexible array members],
+ ac_cv_c_flexmember,
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdlib.h>
+ #include <stdio.h>
+ #include <stddef.h>
+ struct s { int n; double d[]; };]],
+ [[int m = getchar ();
+ struct s *p = malloc (offsetof (struct s, d)
+ + m * sizeof (double));
+ p->d[0] = 0.0;
+ return p->d != (double *) NULL;]])],
+ [ac_cv_c_flexmember=yes],
+ [ac_cv_c_flexmember=no])])
+ if test $ac_cv_c_flexmember = yes; then
+ AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [],
+ [Define to nothing if C supports flexible array members, and to
+ 1 if it does not. That way, with a declaration like `struct s
+ { int n; double d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack
+ can be used with pre-C99 compilers.
+ When computing the size of such an object, don't use 'sizeof (struct s)'
+ as it overestimates the size. Use 'offsetof (struct s, d)' instead.
+ Don't use 'offsetof (struct s, d@<:@0@:>@)', as this doesn't work with
+ MSVC and with C++ compilers.])
+ else
+ AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], 1)
+ fi
+])
+
+
+# AC_C_VARARRAYS
+# --------------
+# Check whether the C compiler supports variable-length arrays.
+AC_DEFUN([AC_C_VARARRAYS],
+[
+ AC_CACHE_CHECK([for variable-length arrays],
+ ac_cv_c_vararrays,
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([],
+ [[static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];]])],
+ [ac_cv_c_vararrays=yes],
+ [ac_cv_c_vararrays=no])])
+ if test $ac_cv_c_vararrays = yes; then
+ AC_DEFINE([HAVE_C_VARARRAYS], 1,
+ [Define to 1 if C supports variable-length arrays.])
+ fi
+])
+
+
+# AC_C_TYPEOF
+# -----------
+# Check if the C compiler supports GCC's typeof syntax.
+# The test case provokes incompatibilities in the Sun C compilers
+# (both Solaris 8 and Solaris 10).
+AC_DEFUN([AC_C_TYPEOF],
+[
+ AC_CACHE_CHECK([for typeof syntax and keyword spelling], ac_cv_c_typeof,
+ [ac_cv_c_typeof=no
+ for ac_kw in typeof __typeof__ no; do
+ test $ac_kw = no && break
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+ [[
+ int value;
+ typedef struct {
+ char a [1
+ + ! (($ac_kw (value))
+ (($ac_kw (value)) 0 < ($ac_kw (value)) -1
+ ? ($ac_kw (value)) - 1
+ : ~ (~ ($ac_kw (value)) 0
+ << sizeof ($ac_kw (value)))))]; }
+ ac__typeof_type_;
+ return
+ (! ((void) ((ac__typeof_type_ *) 0), 0));
+ ]])],
+ [ac_cv_c_typeof=$ac_kw])
+ test $ac_cv_c_typeof != no && break
+ done])
+ if test $ac_cv_c_typeof != no; then
+ AC_DEFINE([HAVE_TYPEOF], 1,
+ [Define to 1 if typeof works with your compiler.])
+ if test $ac_cv_c_typeof != typeof; then
+ AC_DEFINE_UNQUOTED([typeof], [$ac_cv_c_typeof],
+ [Define to __typeof__ if your compiler spells it that way.])
+ fi
+ fi
+])
--- /dev/null
+# This file is part of Autoconf. -*- Autoconf -*-
+# Checking for functions.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception, the Free Software Foundation gives unlimited
+# permission to copy, distribute and modify the configure scripts that
+# are the output of Autoconf. You need not follow the terms of the GNU
+# General Public License when using or distributing such scripts, even
+# though portions of the text of Autoconf appear in them. The GNU
+# General Public License (GPL) does govern all other use of the material
+# that constitutes the Autoconf program.
+#
+# Certain portions of the Autoconf source text are designed to be copied
+# (in certain cases, depending on the input) into the output of
+# Autoconf. We call these the "data" portions. The rest of the Autoconf
+# source text consists of comments plus executable code that decides which
+# of the data portions to output in any given case. We call these
+# comments and executable code the "non-data" portions. Autoconf never
+# copies any of the non-data portions into its output.
+#
+# This special exception to the GPL applies to versions of Autoconf
+# released by the Free Software Foundation. When you make and
+# distribute a modified version of Autoconf, you may extend this special
+# exception to the GPL to apply to your modified version as well, *unless*
+# your modified version has the potential to copy into its output some
+# of the text that was the non-data portion of the version that you started
+# with. (In other words, unless your change moves or copies text from
+# the non-data portions to the data portions.) If your modification has
+# such potential, you must delete any notice of this special exception
+# to the GPL from your modified version.
+#
+# Written by David MacKenzie, with help from
+# Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
+# Roland McGrath, Noah Friedman, david d zuhn, and many others.
+
+
+# Table of contents
+#
+# 1. Generic tests for functions.
+# 2. Functions to check with AC_CHECK_FUNCS
+# 3. Tests for specific functions.
+
+
+## -------------------------------- ##
+## 1. Generic tests for functions. ##
+## -------------------------------- ##
+
+
+# AC_CHECK_FUNC(FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# -----------------------------------------------------------------
+AC_DEFUN([AC_CHECK_FUNC],
+[AS_VAR_PUSHDEF([ac_var], [ac_cv_func_$1])dnl
+AC_CACHE_CHECK([for $1], [ac_var],
+[AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
+ [AS_VAR_SET([ac_var], [yes])],
+ [AS_VAR_SET([ac_var], [no])])])
+AS_IF([test AS_VAR_GET([ac_var]) = yes], [$2], [$3])dnl
+AS_VAR_POPDEF([ac_var])dnl
+])# AC_CHECK_FUNC
+
+
+# _AH_CHECK_FUNCS(FUNCTION...)
+# ----------------------------
+m4_define([_AH_CHECK_FUNCS],
+[m4_foreach_w([AC_Func], [$1],
+ [AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([AC_Func])),
+ [Define to 1 if you have the `]m4_defn([AC_Func])[' function.])])])
+
+
+# AC_CHECK_FUNCS(FUNCTION..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------
+AC_DEFUN([AC_CHECK_FUNCS],
+[_AH_CHECK_FUNCS([$1])dnl
+for ac_func in $1
+do
+AC_CHECK_FUNC($ac_func,
+ [AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$ac_func])]) $2],
+ [$3])dnl
+done
+])
+
+
+# AC_CHECK_FUNCS_ONCE(FUNCTION...)
+# --------------------------------
+AC_DEFUN([AC_CHECK_FUNCS_ONCE],
+[
+ _AH_CHECK_FUNCS([$1])
+ m4_foreach_w([AC_Func], [$1],
+ [AC_DEFUN([_AC_Func_]m4_defn([AC_Func]),
+ [m4_divert_text([INIT_PREPARE],
+ [ac_func_list="$ac_func_list AC_Func"])
+ _AC_FUNCS_EXPANSION])
+ AC_REQUIRE([_AC_Func_]m4_defn([AC_Func]))])
+])
+m4_define([_AC_FUNCS_EXPANSION],
+[
+ m4_divert_text([DEFAULTS], [ac_func_list=])
+ AC_CHECK_FUNCS([$ac_func_list])
+ m4_define([_AC_FUNCS_EXPANSION], [])
+])
+
+
+# AC_REPLACE_FUNCS(FUNCTION...)
+# -----------------------------
+AC_DEFUN([AC_REPLACE_FUNCS],
+[m4_foreach_w([AC_Func], [$1], [AC_LIBSOURCE(AC_Func.c)])dnl
+AC_CHECK_FUNCS([$1], , [_AC_LIBOBJ($ac_func)])
+])
+
+
+# AC_TRY_LINK_FUNC(FUNC, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
+# ------------------------------------------------------------
+# Try to link a program that calls FUNC, handling GCC builtins. If
+# the link succeeds, execute ACTION-IF-FOUND; otherwise, execute
+# ACTION-IF-NOT-FOUND.
+AC_DEFUN([AC_TRY_LINK_FUNC],
+[AC_LINK_IFELSE([AC_LANG_CALL([], [$1])], [$2], [$3])])
+
+
+# AU::AC_FUNC_CHECK
+# -----------------
+AU_ALIAS([AC_FUNC_CHECK], [AC_CHECK_FUNC])
+
+
+# AU::AC_HAVE_FUNCS
+# -----------------
+AU_ALIAS([AC_HAVE_FUNCS], [AC_CHECK_FUNCS])
+
+
+
+
+## ------------------------------------------- ##
+## 2. Functions to check with AC_CHECK_FUNCS. ##
+## ------------------------------------------- ##
+
+AN_FUNCTION([__argz_count], [AC_CHECK_FUNCS])
+AN_FUNCTION([__argz_next], [AC_CHECK_FUNCS])
+AN_FUNCTION([__argz_stringify], [AC_CHECK_FUNCS])
+AN_FUNCTION([__fpending], [AC_CHECK_FUNCS])
+AN_FUNCTION([acl], [AC_CHECK_FUNCS])
+AN_FUNCTION([alarm], [AC_CHECK_FUNCS])
+AN_FUNCTION([atexit], [AC_CHECK_FUNCS])
+AN_FUNCTION([btowc], [AC_CHECK_FUNCS])
+AN_FUNCTION([bzero], [AC_CHECK_FUNCS])
+AN_FUNCTION([clock_gettime], [AC_CHECK_FUNCS])
+AN_FUNCTION([doprnt], [AC_CHECK_FUNCS])
+AN_FUNCTION([dup2], [AC_CHECK_FUNCS])
+AN_FUNCTION([endgrent], [AC_CHECK_FUNCS])
+AN_FUNCTION([endpwent], [AC_CHECK_FUNCS])
+AN_FUNCTION([euidaccess], [AC_CHECK_FUNCS])
+AN_FUNCTION([fchdir], [AC_CHECK_FUNCS])
+AN_FUNCTION([fdatasync], [AC_CHECK_FUNCS])
+AN_FUNCTION([fesetround], [AC_CHECK_FUNCS])
+AN_FUNCTION([floor], [AC_CHECK_FUNCS])
+AN_FUNCTION([fs_stat_dev], [AC_CHECK_FUNCS])
+AN_FUNCTION([ftime], [AC_CHECK_FUNCS])
+AN_FUNCTION([ftruncate], [AC_CHECK_FUNCS])
+AN_FUNCTION([getcwd], [AC_CHECK_FUNCS])
+AN_FUNCTION([getdelim], [AC_CHECK_FUNCS])
+AN_FUNCTION([gethostbyaddr], [AC_CHECK_FUNCS])
+AN_FUNCTION([gethostbyname], [AC_CHECK_FUNCS])
+AN_FUNCTION([gethostname], [AC_CHECK_FUNCS])
+AN_FUNCTION([gethrtime], [AC_CHECK_FUNCS])
+AN_FUNCTION([getmntent], [AC_CHECK_FUNCS])
+AN_FUNCTION([getmntinfo], [AC_CHECK_FUNCS])
+AN_FUNCTION([getpagesize], [AC_CHECK_FUNCS])
+AN_FUNCTION([getpass], [AC_CHECK_FUNCS])
+AN_FUNCTION([getspnam], [AC_CHECK_FUNCS])
+AN_FUNCTION([gettimeofday], [AC_CHECK_FUNCS])
+AN_FUNCTION([getusershell], [AC_CHECK_FUNCS])
+AN_FUNCTION([hasmntopt], [AC_CHECK_FUNCS])
+AN_FUNCTION([inet_ntoa], [AC_CHECK_FUNCS])
+AN_FUNCTION([isascii], [AC_CHECK_FUNCS])
+AN_FUNCTION([iswprint], [AC_CHECK_FUNCS])
+AN_FUNCTION([lchown], [AC_CHECK_FUNCS])
+AN_FUNCTION([listmntent], [AC_CHECK_FUNCS])
+AN_FUNCTION([localeconv], [AC_CHECK_FUNCS])
+AN_FUNCTION([localtime_r], [AC_CHECK_FUNCS])
+AN_FUNCTION([mblen], [AC_CHECK_FUNCS])
+AN_FUNCTION([mbrlen], [AC_CHECK_FUNCS])
+AN_FUNCTION([memchr], [AC_CHECK_FUNCS])
+AN_FUNCTION([memmove], [AC_CHECK_FUNCS])
+AN_FUNCTION([mempcpy], [AC_CHECK_FUNCS])
+AN_FUNCTION([memset], [AC_CHECK_FUNCS])
+AN_FUNCTION([mkdir], [AC_CHECK_FUNCS])
+AN_FUNCTION([mkfifo], [AC_CHECK_FUNCS])
+AN_FUNCTION([modf], [AC_CHECK_FUNCS])
+AN_FUNCTION([munmap], [AC_CHECK_FUNCS])
+AN_FUNCTION([next_dev], [AC_CHECK_FUNCS])
+AN_FUNCTION([nl_langinfo], [AC_CHECK_FUNCS])
+AN_FUNCTION([pathconf], [AC_CHECK_FUNCS])
+AN_FUNCTION([pow], [AC_CHECK_FUNCS])
+AN_FUNCTION([pstat_getdynamic], [AC_CHECK_FUNCS])
+AN_FUNCTION([putenv], [AC_CHECK_FUNCS])
+AN_FUNCTION([re_comp], [AC_CHECK_FUNCS])
+AN_FUNCTION([realpath], [AC_CHECK_FUNCS])
+AN_FUNCTION([regcmp], [AC_CHECK_FUNCS])
+AN_FUNCTION([regcomp], [AC_CHECK_FUNCS])
+AN_FUNCTION([resolvepath], [AC_CHECK_FUNCS])
+AN_FUNCTION([rint], [AC_CHECK_FUNCS])
+AN_FUNCTION([rmdir], [AC_CHECK_FUNCS])
+AN_FUNCTION([rpmatch], [AC_CHECK_FUNCS])
+AN_FUNCTION([select], [AC_CHECK_FUNCS])
+AN_FUNCTION([setenv], [AC_CHECK_FUNCS])
+AN_FUNCTION([sethostname], [AC_CHECK_FUNCS])
+AN_FUNCTION([setlocale], [AC_CHECK_FUNCS])
+AN_FUNCTION([socket], [AC_CHECK_FUNCS])
+AN_FUNCTION([sqrt], [AC_CHECK_FUNCS])
+AN_FUNCTION([stime], [AC_CHECK_FUNCS])
+AN_FUNCTION([stpcpy], [AC_CHECK_FUNCS])
+AN_FUNCTION([strcasecmp], [AC_CHECK_FUNCS])
+AN_FUNCTION([strchr], [AC_CHECK_FUNCS])
+AN_FUNCTION([strcspn], [AC_CHECK_FUNCS])
+AN_FUNCTION([strdup], [AC_CHECK_FUNCS])
+AN_FUNCTION([strerror], [AC_CHECK_FUNCS])
+AN_FUNCTION([strncasecmp], [AC_CHECK_FUNCS])
+AN_FUNCTION([strndup], [AC_CHECK_FUNCS])
+AN_FUNCTION([strpbrk], [AC_CHECK_FUNCS])
+AN_FUNCTION([strrchr], [AC_CHECK_FUNCS])
+AN_FUNCTION([strspn], [AC_CHECK_FUNCS])
+AN_FUNCTION([strstr], [AC_CHECK_FUNCS])
+AN_FUNCTION([strtol], [AC_CHECK_FUNCS])
+AN_FUNCTION([strtoul], [AC_CHECK_FUNCS])
+AN_FUNCTION([strtoull], [AC_CHECK_FUNCS])
+AN_FUNCTION([strtoumax], [AC_CHECK_FUNCS])
+AN_FUNCTION([strverscmp], [AC_CHECK_FUNCS])
+AN_FUNCTION([sysinfo], [AC_CHECK_FUNCS])
+AN_FUNCTION([tzset], [AC_CHECK_FUNCS])
+AN_FUNCTION([uname], [AC_CHECK_FUNCS])
+AN_FUNCTION([utime], [AC_CHECK_FUNCS])
+AN_FUNCTION([utmpname], [AC_CHECK_FUNCS])
+AN_FUNCTION([utmpxname], [AC_CHECK_FUNCS])
+AN_FUNCTION([wcwidth], [AC_CHECK_FUNCS])
+
+
+AN_FUNCTION([dcgettext], [AM_GNU_GETTEXT])
+AN_FUNCTION([getwd], [warn: getwd is deprecated, use getcwd instead])
+
+
+## --------------------------------- ##
+## 3. Tests for specific functions. ##
+## --------------------------------- ##
+
+
+# The macros are sorted:
+#
+# 1. AC_FUNC_* macros are sorted by alphabetical order.
+#
+# 2. Helping macros such as _AC_LIBOBJ_* are before the macro that
+# uses it.
+#
+# 3. Obsolete macros are right after the modern macro.
+
+
+
+# _AC_LIBOBJ_ALLOCA
+# -----------------
+# Set up the LIBOBJ replacement of `alloca'. Well, not exactly
+# AC_LIBOBJ since we actually set the output variable `ALLOCA'.
+# Nevertheless, for Automake, AC_LIBSOURCES it.
+m4_define([_AC_LIBOBJ_ALLOCA],
+[# The SVR3 libPW and SVR4 libucb both contain incompatible functions
+# that cause trouble. Some versions do not even contain alloca or
+# contain a buggy version. If you still want to use their alloca,
+# use ar to extract alloca.o from them instead of compiling alloca.c.
+AC_LIBSOURCES(alloca.c)
+AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])dnl
+AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using `alloca.c'.])
+
+AC_CACHE_CHECK(whether `alloca.c' needs Cray hooks, ac_cv_os_cray,
+[AC_EGREP_CPP(webecray,
+[#if defined CRAY && ! defined CRAY2
+webecray
+#else
+wenotbecray
+#endif
+], ac_cv_os_cray=yes, ac_cv_os_cray=no)])
+if test $ac_cv_os_cray = yes; then
+ for ac_func in _getb67 GETB67 getb67; do
+ AC_CHECK_FUNC($ac_func,
+ [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func,
+ [Define to one of `_getb67', `GETB67',
+ `getb67' for Cray-2 and Cray-YMP
+ systems. This function is required for
+ `alloca.c' support on those systems.])
+ break])
+ done
+fi
+
+AC_CACHE_CHECK([stack direction for C alloca],
+ [ac_cv_c_stack_direction],
+[AC_RUN_IFELSE([AC_LANG_SOURCE(
+[AC_INCLUDES_DEFAULT
+int
+find_stack_direction ()
+{
+ static char *addr = 0;
+ auto char dummy;
+ if (addr == 0)
+ {
+ addr = &dummy;
+ return find_stack_direction ();
+ }
+ else
+ return (&dummy > addr) ? 1 : -1;
+}
+
+int
+main ()
+{
+ return find_stack_direction () < 0;
+}])],
+ [ac_cv_c_stack_direction=1],
+ [ac_cv_c_stack_direction=-1],
+ [ac_cv_c_stack_direction=0])])
+AH_VERBATIM([STACK_DIRECTION],
+[/* If using the C implementation of alloca, define if you know the
+ direction of stack growth for your system; otherwise it will be
+ automatically deduced at runtime.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown */
+@%:@undef STACK_DIRECTION])dnl
+AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
+])# _AC_LIBOBJ_ALLOCA
+
+
+# AC_FUNC_ALLOCA
+# --------------
+AN_FUNCTION([alloca], [AC_FUNC_ALLOCA])
+AN_HEADER([alloca.h], [AC_FUNC_ALLOCA])
+AC_DEFUN([AC_FUNC_ALLOCA],
+[# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
+# for constant arguments. Useless!
+AC_CACHE_CHECK([for working alloca.h], ac_cv_working_alloca_h,
+[AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[@%:@include <alloca.h>]],
+ [[char *p = (char *) alloca (2 * sizeof (int));
+ if (p) return 0;]])],
+ [ac_cv_working_alloca_h=yes],
+ [ac_cv_working_alloca_h=no])])
+if test $ac_cv_working_alloca_h = yes; then
+ AC_DEFINE(HAVE_ALLOCA_H, 1,
+ [Define to 1 if you have <alloca.h> and it should be used
+ (not on Ultrix).])
+fi
+
+AC_CACHE_CHECK([for alloca], ac_cv_func_alloca_works,
+[AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[#ifdef __GNUC__
+# define alloca __builtin_alloca
+#else
+# ifdef _MSC_VER
+# include <malloc.h>
+# define alloca _alloca
+# else
+# ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+# endif
+# endif
+# endif
+# endif
+#endif
+]], [[char *p = (char *) alloca (1);
+ if (p) return 0;]])],
+ [ac_cv_func_alloca_works=yes],
+ [ac_cv_func_alloca_works=no])])
+
+if test $ac_cv_func_alloca_works = yes; then
+ AC_DEFINE(HAVE_ALLOCA, 1,
+ [Define to 1 if you have `alloca', as a function or macro.])
+else
+ _AC_LIBOBJ_ALLOCA
+fi
+])# AC_FUNC_ALLOCA
+
+
+# AU::AC_ALLOCA
+# -------------
+AU_ALIAS([AC_ALLOCA], [AC_FUNC_ALLOCA])
+
+
+# AC_FUNC_CHOWN
+# -------------
+# Determine whether chown accepts arguments of -1 for uid and gid.
+AN_FUNCTION([chown], [AC_FUNC_CHOWN])
+AC_DEFUN([AC_FUNC_CHOWN],
+[AC_REQUIRE([AC_TYPE_UID_T])dnl
+AC_CHECK_HEADERS(unistd.h)
+AC_CACHE_CHECK([for working chown], ac_cv_func_chown_works,
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+#include <fcntl.h>
+],
+[[ char *f = "conftest.chown";
+ struct stat before, after;
+
+ if (creat (f, 0600) < 0)
+ return 1;
+ if (stat (f, &before) < 0)
+ return 1;
+ if (chown (f, (uid_t) -1, (gid_t) -1) == -1)
+ return 1;
+ if (stat (f, &after) < 0)
+ return 1;
+ return ! (before.st_uid == after.st_uid && before.st_gid == after.st_gid);
+]])],
+ [ac_cv_func_chown_works=yes],
+ [ac_cv_func_chown_works=no],
+ [ac_cv_func_chown_works=no])
+rm -f conftest.chown
+])
+if test $ac_cv_func_chown_works = yes; then
+ AC_DEFINE(HAVE_CHOWN, 1,
+ [Define to 1 if your system has a working `chown' function.])
+fi
+])# AC_FUNC_CHOWN
+
+
+# AC_FUNC_CLOSEDIR_VOID
+# ---------------------
+# Check whether closedir returns void, and #define CLOSEDIR_VOID in
+# that case.
+AN_FUNCTION([closedir], [AC_FUNC_CLOSEDIR_VOID])
+AC_DEFUN([AC_FUNC_CLOSEDIR_VOID],
+[AC_REQUIRE([AC_HEADER_DIRENT])dnl
+AC_CACHE_CHECK([whether closedir returns void],
+ [ac_cv_func_closedir_void],
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+#include <$ac_header_dirent>
+#ifndef __cplusplus
+int closedir ();
+#endif
+],
+ [[return closedir (opendir (".")) != 0;]])],
+ [ac_cv_func_closedir_void=no],
+ [ac_cv_func_closedir_void=yes],
+ [ac_cv_func_closedir_void=yes])])
+if test $ac_cv_func_closedir_void = yes; then
+ AC_DEFINE(CLOSEDIR_VOID, 1,
+ [Define to 1 if the `closedir' function returns void instead
+ of `int'.])
+fi
+])
+
+
+# AC_FUNC_ERROR_AT_LINE
+# ---------------------
+AN_FUNCTION([error], [AC_FUNC_ERROR_AT_LINE])
+AN_FUNCTION([error_at_line], [AC_FUNC_ERROR_AT_LINE])
+AC_DEFUN([AC_FUNC_ERROR_AT_LINE],
+[AC_LIBSOURCES([error.h, error.c])dnl
+AC_CACHE_CHECK([for error_at_line], ac_cv_lib_error_at_line,
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <error.h>],
+ [error_at_line (0, 0, "", 0, "an error occurred");])],
+ [ac_cv_lib_error_at_line=yes],
+ [ac_cv_lib_error_at_line=no])])
+if test $ac_cv_lib_error_at_line = no; then
+ AC_LIBOBJ(error)
+fi
+])
+
+
+# AU::AM_FUNC_ERROR_AT_LINE
+# -------------------------
+AU_ALIAS([AM_FUNC_ERROR_AT_LINE], [AC_FUNC_ERROR_AT_LINE])
+
+
+# _AC_FUNC_FNMATCH_IF(STANDARD = GNU | POSIX, CACHE_VAR, IF-TRUE, IF-FALSE)
+# -------------------------------------------------------------------------
+# If a STANDARD compliant fnmatch is found, run IF-TRUE, otherwise
+# IF-FALSE. Use CACHE_VAR.
+AC_DEFUN([_AC_FUNC_FNMATCH_IF],
+[AC_CACHE_CHECK(
+ [for working $1 fnmatch],
+ [$2],
+ [# Some versions of Solaris, SCO, and the GNU C Library
+ # have a broken or incompatible fnmatch.
+ # So we run a test program. If we are cross-compiling, take no chance.
+ # Thanks to John Oleynick, Franc,ois Pinard, and Paul Eggert for this test.
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <fnmatch.h>
+# define y(a, b, c) (fnmatch (a, b, c) == 0)
+# define n(a, b, c) (fnmatch (a, b, c) == FNM_NOMATCH)
+ ],
+ [return
+ (!(y ("a*", "abc", 0)
+ && n ("d*/*1", "d/s/1", FNM_PATHNAME)
+ && y ("a\\\\bc", "abc", 0)
+ && n ("a\\\\bc", "abc", FNM_NOESCAPE)
+ && y ("*x", ".x", 0)
+ && n ("*x", ".x", FNM_PERIOD)
+ && m4_if([$1], [GNU],
+ [y ("xxXX", "xXxX", FNM_CASEFOLD)
+ && y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)
+ && n ("d*/*1", "d/s/1", FNM_FILE_NAME)
+ && y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)
+ && y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)
+ && y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)],
+ 1)));])],
+ [$2=yes],
+ [$2=no],
+ [$2=cross])])
+AS_IF([test $$2 = yes], [$3], [$4])
+])# _AC_FUNC_FNMATCH_IF
+
+
+# AC_FUNC_FNMATCH
+# ---------------
+AC_DEFUN([AC_FUNC_FNMATCH],
+[_AC_FUNC_FNMATCH_IF([POSIX], [ac_cv_func_fnmatch_works],
+ [AC_DEFINE([HAVE_FNMATCH], 1,
+ [Define to 1 if your system has a working POSIX `fnmatch'
+ function.])])
+])# AC_FUNC_FNMATCH
+
+
+# _AC_LIBOBJ_FNMATCH
+# ------------------
+# Prepare the replacement of fnmatch.
+AC_DEFUN([_AC_LIBOBJ_FNMATCH],
+[AC_REQUIRE([AC_C_CONST])dnl
+AC_REQUIRE([AC_FUNC_ALLOCA])dnl
+AC_REQUIRE([AC_TYPE_MBSTATE_T])dnl
+AC_CHECK_DECLS([getenv])
+AC_CHECK_FUNCS([btowc mbsrtowcs mempcpy wmempcpy])
+AC_CHECK_HEADERS([wchar.h wctype.h])
+AC_LIBOBJ([fnmatch])
+AC_CONFIG_LINKS([$ac_config_libobj_dir/fnmatch.h:$ac_config_libobj_dir/fnmatch_.h])
+AC_DEFINE(fnmatch, rpl_fnmatch,
+ [Define to rpl_fnmatch if the replacement function should be used.])
+])# _AC_LIBOBJ_FNMATCH
+
+
+# AC_REPLACE_FNMATCH
+# ------------------
+AN_FUNCTION([fnmatch], [AC_REPLACE_FNMATCH])
+AC_DEFUN([AC_REPLACE_FNMATCH],
+[_AC_FUNC_FNMATCH_IF([POSIX], [ac_cv_func_fnmatch_works],
+ [rm -f "$ac_config_libobj_dir/fnmatch.h"],
+ [_AC_LIBOBJ_FNMATCH])
+])# AC_REPLACE_FNMATCH
+
+
+# AC_FUNC_FNMATCH_GNU
+# -------------------
+AC_DEFUN([AC_FUNC_FNMATCH_GNU],
+[AC_REQUIRE([AC_GNU_SOURCE])
+_AC_FUNC_FNMATCH_IF([GNU], [ac_cv_func_fnmatch_gnu],
+ [rm -f "$ac_config_libobj_dir/fnmatch.h"],
+ [_AC_LIBOBJ_FNMATCH])
+])# AC_FUNC_FNMATCH_GNU
+
+
+# AU::AM_FUNC_FNMATCH
+# AU::fp_FUNC_FNMATCH
+# -------------------
+AU_ALIAS([AM_FUNC_FNMATCH], [AC_FUNC_FNMATCH])
+AU_ALIAS([fp_FUNC_FNMATCH], [AC_FUNC_FNMATCH])
+
+
+# AC_FUNC_FSEEKO
+# --------------
+AN_FUNCTION([ftello], [AC_FUNC_FSEEKO])
+AN_FUNCTION([fseeko], [AC_FUNC_FSEEKO])
+AC_DEFUN([AC_FUNC_FSEEKO],
+[_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
+ [ac_cv_sys_largefile_source],
+ [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).],
+ [@%:@include <sys/types.h> /* for off_t */
+ #include <stdio.h>],
+ [[int (*fp) (FILE *, off_t, int) = fseeko;
+ return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);]])
+
+# We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
+# in glibc 2.1.3, but that breaks too many other things.
+# If you want fseeko and ftello with glibc, upgrade to a fixed glibc.
+if test $ac_cv_sys_largefile_source != unknown; then
+ AC_DEFINE(HAVE_FSEEKO, 1,
+ [Define to 1 if fseeko (and presumably ftello) exists and is declared.])
+fi
+])# AC_FUNC_FSEEKO
+
+
+# AC_FUNC_GETGROUPS
+# -----------------
+# Try to find `getgroups', and check that it works.
+# When cross-compiling, assume getgroups is broken.
+AN_FUNCTION([getgroups], [AC_FUNC_GETGROUPS])
+AC_DEFUN([AC_FUNC_GETGROUPS],
+[AC_REQUIRE([AC_TYPE_GETGROUPS])dnl
+AC_REQUIRE([AC_TYPE_SIZE_T])dnl
+AC_CHECK_FUNC(getgroups)
+
+# If we don't yet have getgroups, see if it's in -lbsd.
+# This is reported to be necessary on an ITOS 3000WS running SEIUX 3.1.
+ac_save_LIBS=$LIBS
+if test $ac_cv_func_getgroups = no; then
+ AC_CHECK_LIB(bsd, getgroups, [GETGROUPS_LIB=-lbsd])
+fi
+
+# Run the program to test the functionality of the system-supplied
+# getgroups function only if there is such a function.
+if test $ac_cv_func_getgroups = yes; then
+ AC_CACHE_CHECK([for working getgroups], ac_cv_func_getgroups_works,
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[/* On Ultrix 4.3, getgroups (0, 0) always fails. */
+ return getgroups (0, 0) == -1;]])],
+ [ac_cv_func_getgroups_works=yes],
+ [ac_cv_func_getgroups_works=no],
+ [ac_cv_func_getgroups_works=no])
+ ])
+ if test $ac_cv_func_getgroups_works = yes; then
+ AC_DEFINE(HAVE_GETGROUPS, 1,
+ [Define to 1 if your system has a working `getgroups' function.])
+ fi
+fi
+LIBS=$ac_save_LIBS
+])# AC_FUNC_GETGROUPS
+
+
+# _AC_LIBOBJ_GETLOADAVG
+# ---------------------
+# Set up the AC_LIBOBJ replacement of `getloadavg'.
+m4_define([_AC_LIBOBJ_GETLOADAVG],
+[AC_LIBOBJ(getloadavg)
+AC_DEFINE(C_GETLOADAVG, 1, [Define to 1 if using `getloadavg.c'.])
+# Figure out what our getloadavg.c needs.
+ac_have_func=no
+AC_CHECK_HEADER(sys/dg_sys_info.h,
+[ac_have_func=yes
+ AC_DEFINE(DGUX, 1, [Define to 1 for DGUX with <sys/dg_sys_info.h>.])
+ AC_CHECK_LIB(dgc, dg_sys_info)])
+
+AC_CHECK_HEADER(locale.h)
+AC_CHECK_FUNCS(setlocale)
+
+# We cannot check for <dwarf.h>, because Solaris 2 does not use dwarf (it
+# uses stabs), but it is still SVR4. We cannot check for <elf.h> because
+# Irix 4.0.5F has the header but not the library.
+if test $ac_have_func = no && test "$ac_cv_lib_elf_elf_begin" = yes; then
+ ac_have_func=yes
+ AC_DEFINE(SVR4, 1, [Define to 1 on System V Release 4.])
+fi
+
+if test $ac_have_func = no; then
+ AC_CHECK_HEADER(inq_stats/cpustats.h,
+ [ac_have_func=yes
+ AC_DEFINE(UMAX, 1, [Define to 1 for Encore UMAX.])
+ AC_DEFINE(UMAX4_3, 1,
+ [Define to 1 for Encore UMAX 4.3 that has <inq_status/cpustats.h>
+ instead of <sys/cpustats.h>.])])
+fi
+
+if test $ac_have_func = no; then
+ AC_CHECK_HEADER(sys/cpustats.h,
+ [ac_have_func=yes; AC_DEFINE(UMAX)])
+fi
+
+if test $ac_have_func = no; then
+ AC_CHECK_HEADERS(mach/mach.h)
+fi
+
+AC_CHECK_HEADERS(nlist.h,
+[AC_CHECK_MEMBERS([struct nlist.n_un.n_name],
+ [AC_DEFINE(NLIST_NAME_UNION, 1,
+ [Define to 1 if your `struct nlist' has an
+ `n_un' member. Obsolete, depend on
+ `HAVE_STRUCT_NLIST_N_UN_N_NAME])], [],
+ [@%:@include <nlist.h>])
+])dnl
+])# _AC_LIBOBJ_GETLOADAVG
+
+
+# AC_FUNC_GETLOADAVG
+# ------------------
+AN_FUNCTION([getloadavg], [AC_FUNC_GETLOADAVG])
+AC_DEFUN([AC_FUNC_GETLOADAVG],
+[ac_have_func=no # yes means we've found a way to get the load average.
+
+# Make sure getloadavg.c is where it belongs, at configure-time.
+test -f "$srcdir/$ac_config_libobj_dir/getloadavg.c" ||
+ AC_MSG_ERROR([$srcdir/$ac_config_libobj_dir/getloadavg.c is missing])
+
+ac_save_LIBS=$LIBS
+
+# Check for getloadavg, but be sure not to touch the cache variable.
+(AC_CHECK_FUNC(getloadavg, exit 0, exit 1)) && ac_have_func=yes
+
+# On HPUX9, an unprivileged user can get load averages through this function.
+AC_CHECK_FUNCS(pstat_getdynamic)
+
+# Solaris has libkstat which does not require root.
+AC_CHECK_LIB(kstat, kstat_open)
+test $ac_cv_lib_kstat_kstat_open = yes && ac_have_func=yes
+
+# Some systems with -lutil have (and need) -lkvm as well, some do not.
+# On Solaris, -lkvm requires nlist from -lelf, so check that first
+# to get the right answer into the cache.
+# For kstat on solaris, we need libelf to force the definition of SVR4 below.
+if test $ac_have_func = no; then
+ AC_CHECK_LIB(elf, elf_begin, LIBS="-lelf $LIBS")
+fi
+if test $ac_have_func = no; then
+ AC_CHECK_LIB(kvm, kvm_open, LIBS="-lkvm $LIBS")
+ # Check for the 4.4BSD definition of getloadavg.
+ AC_CHECK_LIB(util, getloadavg,
+ [LIBS="-lutil $LIBS" ac_have_func=yes ac_cv_func_getloadavg_setgid=yes])
+fi
+
+if test $ac_have_func = no; then
+ # There is a commonly available library for RS/6000 AIX.
+ # Since it is not a standard part of AIX, it might be installed locally.
+ ac_getloadavg_LIBS=$LIBS
+ LIBS="-L/usr/local/lib $LIBS"
+ AC_CHECK_LIB(getloadavg, getloadavg,
+ [LIBS="-lgetloadavg $LIBS"], [LIBS=$ac_getloadavg_LIBS])
+fi
+
+# Make sure it is really in the library, if we think we found it,
+# otherwise set up the replacement function.
+AC_CHECK_FUNCS(getloadavg, [],
+ [_AC_LIBOBJ_GETLOADAVG])
+
+# Some definitions of getloadavg require that the program be installed setgid.
+AC_CACHE_CHECK(whether getloadavg requires setgid,
+ ac_cv_func_getloadavg_setgid,
+[AC_EGREP_CPP([Yowza Am I SETGID yet],
+[#include "$srcdir/$ac_config_libobj_dir/getloadavg.c"
+#ifdef LDAV_PRIVILEGED
+Yowza Am I SETGID yet
+@%:@endif],
+ ac_cv_func_getloadavg_setgid=yes,
+ ac_cv_func_getloadavg_setgid=no)])
+if test $ac_cv_func_getloadavg_setgid = yes; then
+ NEED_SETGID=true
+ AC_DEFINE(GETLOADAVG_PRIVILEGED, 1,
+ [Define to 1 if the `getloadavg' function needs to be run setuid
+ or setgid.])
+else
+ NEED_SETGID=false
+fi
+AC_SUBST(NEED_SETGID)dnl
+
+if test $ac_cv_func_getloadavg_setgid = yes; then
+ AC_CACHE_CHECK(group of /dev/kmem, ac_cv_group_kmem,
+[ # On Solaris, /dev/kmem is a symlink. Get info on the real file.
+ ac_ls_output=`ls -lgL /dev/kmem 2>/dev/null`
+ # If we got an error (system does not support symlinks), try without -L.
+ test -z "$ac_ls_output" && ac_ls_output=`ls -lg /dev/kmem`
+ ac_cv_group_kmem=`echo $ac_ls_output \
+ | sed -ne ['s/[ ][ ]*/ /g;
+ s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/;
+ / /s/.* //;p;']`
+])
+ AC_SUBST(KMEM_GROUP, $ac_cv_group_kmem)dnl
+fi
+if test "x$ac_save_LIBS" = x; then
+ GETLOADAVG_LIBS=$LIBS
+else
+ GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$ac_save_LIBS!!"`
+fi
+LIBS=$ac_save_LIBS
+
+AC_SUBST(GETLOADAVG_LIBS)dnl
+])# AC_FUNC_GETLOADAVG
+
+
+# AU::AC_GETLOADAVG
+# -----------------
+AU_ALIAS([AC_GETLOADAVG], [AC_FUNC_GETLOADAVG])
+
+
+# AC_FUNC_GETMNTENT
+# -----------------
+AN_FUNCTION([getmntent], [AC_FUNC_GETMNTENT])
+AC_DEFUN([AC_FUNC_GETMNTENT],
+[# getmntent is in the standard C library on UNICOS, in -lsun on Irix 4,
+# -lseq on Dynix/PTX, -lgen on Unixware.
+AC_SEARCH_LIBS(getmntent, [sun seq gen],
+ [ac_cv_func_getmntent=yes
+ AC_DEFINE([HAVE_GETMNTENT], [],
+ [Define to 1 if you have the `getmntent' function.])],
+ [ac_cv_func_getmntent=no])
+])
+
+
+# AC_FUNC_GETPGRP
+# ---------------
+# Figure out whether getpgrp requires zero arguments.
+AN_FUNCTION([getpgrp], [AC_FUNC_GETPGRP])
+AC_DEFUN([AC_FUNC_GETPGRP],
+[AC_CACHE_CHECK(whether getpgrp requires zero arguments,
+ ac_cv_func_getpgrp_void,
+[# Use it with a single arg.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [getpgrp (0);])],
+ [ac_cv_func_getpgrp_void=no],
+ [ac_cv_func_getpgrp_void=yes])
+])
+if test $ac_cv_func_getpgrp_void = yes; then
+ AC_DEFINE(GETPGRP_VOID, 1,
+ [Define to 1 if the `getpgrp' function requires zero arguments.])
+fi
+])# AC_FUNC_GETPGRP
+
+
+# AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
+# -------------------------------------
+# When cross-compiling, be pessimistic so we will end up using the
+# replacement version of lstat that checks for trailing slashes and
+# calls lstat a second time when necessary.
+AN_FUNCTION([lstat], [AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
+AC_DEFUN([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK],
+[AC_CACHE_CHECK(
+ [whether lstat dereferences a symlink specified with a trailing slash],
+ [ac_cv_func_lstat_dereferences_slashed_symlink],
+[rm -f conftest.sym conftest.file
+echo >conftest.file
+if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [struct stat sbuf;
+ /* Linux will dereference the symlink and fail.
+ That is better in the sense that it means we will not
+ have to compile and use the lstat wrapper. */
+ return lstat ("conftest.sym/", &sbuf) == 0;])],
+ [ac_cv_func_lstat_dereferences_slashed_symlink=yes],
+ [ac_cv_func_lstat_dereferences_slashed_symlink=no],
+ [ac_cv_func_lstat_dereferences_slashed_symlink=no])
+else
+ # If the `ln -s' command failed, then we probably don't even
+ # have an lstat function.
+ ac_cv_func_lstat_dereferences_slashed_symlink=no
+fi
+rm -f conftest.sym conftest.file
+])
+
+test $ac_cv_func_lstat_dereferences_slashed_symlink = yes &&
+ AC_DEFINE_UNQUOTED(LSTAT_FOLLOWS_SLASHED_SYMLINK, 1,
+ [Define to 1 if `lstat' dereferences a symlink specified
+ with a trailing slash.])
+
+if test $ac_cv_func_lstat_dereferences_slashed_symlink = no; then
+ AC_LIBOBJ(lstat)
+fi
+])
+
+
+# _AC_FUNC_MALLOC_IF(IF-WORKS, IF-NOT)
+# ------------------------------------
+# If `malloc (0)' properly handled, run IF-WORKS, otherwise, IF-NOT.
+AC_DEFUN([_AC_FUNC_MALLOC_IF],
+[AC_REQUIRE([AC_HEADER_STDC])dnl
+AC_CHECK_HEADERS(stdlib.h)
+AC_CACHE_CHECK([for GNU libc compatible malloc], ac_cv_func_malloc_0_nonnull,
+[AC_RUN_IFELSE(
+[AC_LANG_PROGRAM(
+[[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+char *malloc ();
+#endif
+]],
+ [return ! malloc (0);])],
+ [ac_cv_func_malloc_0_nonnull=yes],
+ [ac_cv_func_malloc_0_nonnull=no],
+ [ac_cv_func_malloc_0_nonnull=no])])
+AS_IF([test $ac_cv_func_malloc_0_nonnull = yes], [$1], [$2])
+])# AC_FUNC_MALLOC
+
+
+# AC_FUNC_MALLOC
+# --------------
+# Report whether `malloc (0)' properly handled, and replace malloc if
+# needed.
+AN_FUNCTION([malloc], [AC_FUNC_MALLOC])
+AC_DEFUN([AC_FUNC_MALLOC],
+[_AC_FUNC_MALLOC_IF(
+ [AC_DEFINE([HAVE_MALLOC], 1,
+ [Define to 1 if your system has a GNU libc compatible `malloc'
+ function, and to 0 otherwise.])],
+ [AC_DEFINE([HAVE_MALLOC], 0)
+ AC_LIBOBJ(malloc)
+ AC_DEFINE([malloc], [rpl_malloc],
+ [Define to rpl_malloc if the replacement function should be used.])])
+])# AC_FUNC_MALLOC
+
+
+# AC_FUNC_MBRTOWC
+# ---------------
+AN_FUNCTION([mbrtowc], [AC_FUNC_MBRTOWC])
+AC_DEFUN([AC_FUNC_MBRTOWC],
+[
+ AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
+ ac_cv_func_mbrtowc,
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[@%:@include <wchar.h>]],
+ [[wchar_t wc;
+ char const s[] = "";
+ size_t n = 1;
+ mbstate_t state;
+ return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
+ ac_cv_func_mbrtowc=yes,
+ ac_cv_func_mbrtowc=no)])
+ if test $ac_cv_func_mbrtowc = yes; then
+ AC_DEFINE([HAVE_MBRTOWC], 1,
+ [Define to 1 if mbrtowc and mbstate_t are properly declared.])
+ fi
+])
+
+
+# AC_FUNC_MEMCMP
+# --------------
+AN_FUNCTION([memcmp], [AC_FUNC_MEMCMP])
+AC_DEFUN([AC_FUNC_MEMCMP],
+[AC_CACHE_CHECK([for working memcmp], ac_cv_func_memcmp_working,
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[
+ /* Some versions of memcmp are not 8-bit clean. */
+ char c0 = '\100', c1 = '\200', c2 = '\201';
+ if (memcmp(&c0, &c2, 1) >= 0 || memcmp(&c1, &c2, 1) >= 0)
+ return 1;
+
+ /* The Next x86 OpenStep bug shows up only when comparing 16 bytes
+ or more and with at least one buffer not starting on a 4-byte boundary.
+ William Lewis provided this test program. */
+ {
+ char foo[21];
+ char bar[21];
+ int i;
+ for (i = 0; i < 4; i++)
+ {
+ char *a = foo + i;
+ char *b = bar + i;
+ strcpy (a, "--------01111111");
+ strcpy (b, "--------10000000");
+ if (memcmp (a, b, 16) >= 0)
+ return 1;
+ }
+ return 0;
+ }
+]])],
+ [ac_cv_func_memcmp_working=yes],
+ [ac_cv_func_memcmp_working=no],
+ [ac_cv_func_memcmp_working=no])])
+test $ac_cv_func_memcmp_working = no && AC_LIBOBJ([memcmp])
+])# AC_FUNC_MEMCMP
+
+
+# AC_FUNC_MKTIME
+# --------------
+AN_FUNCTION([mktime], [AC_FUNC_MKTIME])
+AC_DEFUN([AC_FUNC_MKTIME],
+[AC_REQUIRE([AC_HEADER_TIME])dnl
+AC_CHECK_HEADERS_ONCE(sys/time.h unistd.h)
+AC_CHECK_FUNCS_ONCE(alarm)
+AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime,
+[AC_RUN_IFELSE([AC_LANG_SOURCE(
+[[/* Test program from Paul Eggert and Tony Leneis. */
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#include <stdlib.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifndef HAVE_ALARM
+# define alarm(X) /* empty */
+#endif
+
+/* Work around redefinition to rpl_putenv by other config tests. */
+#undef putenv
+
+static time_t time_t_max;
+static time_t time_t_min;
+
+/* Values we'll use to set the TZ environment variable. */
+static char *tz_strings[] = {
+ (char *) 0, "TZ=GMT0", "TZ=JST-9",
+ "TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
+};
+#define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
+
+/* Return 0 if mktime fails to convert a date in the spring-forward gap.
+ Based on a problem report from Andreas Jaeger. */
+static int
+spring_forward_gap ()
+{
+ /* glibc (up to about 1998-10-07) failed this test. */
+ struct tm tm;
+
+ /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0"
+ instead of "TZ=America/Vancouver" in order to detect the bug even
+ on systems that don't support the Olson extension, or don't have the
+ full zoneinfo tables installed. */
+ putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
+
+ tm.tm_year = 98;
+ tm.tm_mon = 3;
+ tm.tm_mday = 5;
+ tm.tm_hour = 2;
+ tm.tm_min = 0;
+ tm.tm_sec = 0;
+ tm.tm_isdst = -1;
+ return mktime (&tm) != (time_t) -1;
+}
+
+static int
+mktime_test1 (now)
+ time_t now;
+{
+ struct tm *lt;
+ return ! (lt = localtime (&now)) || mktime (lt) == now;
+}
+
+static int
+mktime_test (now)
+ time_t now;
+{
+ return (mktime_test1 (now)
+ && mktime_test1 ((time_t) (time_t_max - now))
+ && mktime_test1 ((time_t) (time_t_min + now)));
+}
+
+static int
+irix_6_4_bug ()
+{
+ /* Based on code from Ariel Faigon. */
+ struct tm tm;
+ tm.tm_year = 96;
+ tm.tm_mon = 3;
+ tm.tm_mday = 0;
+ tm.tm_hour = 0;
+ tm.tm_min = 0;
+ tm.tm_sec = 0;
+ tm.tm_isdst = -1;
+ mktime (&tm);
+ return tm.tm_mon == 2 && tm.tm_mday == 31;
+}
+
+static int
+bigtime_test (j)
+ int j;
+{
+ struct tm tm;
+ time_t now;
+ tm.tm_year = tm.tm_mon = tm.tm_mday = tm.tm_hour = tm.tm_min = tm.tm_sec = j;
+ now = mktime (&tm);
+ if (now != (time_t) -1)
+ {
+ struct tm *lt = localtime (&now);
+ if (! (lt
+ && lt->tm_year == tm.tm_year
+ && lt->tm_mon == tm.tm_mon
+ && lt->tm_mday == tm.tm_mday
+ && lt->tm_hour == tm.tm_hour
+ && lt->tm_min == tm.tm_min
+ && lt->tm_sec == tm.tm_sec
+ && lt->tm_yday == tm.tm_yday
+ && lt->tm_wday == tm.tm_wday
+ && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst)
+ == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst))))
+ return 0;
+ }
+ return 1;
+}
+
+static int
+year_2050_test ()
+{
+ /* The correct answer for 2050-02-01 00:00:00 in Pacific time,
+ ignoring leap seconds. */
+ unsigned long int answer = 2527315200UL;
+
+ struct tm tm;
+ time_t t;
+ tm.tm_year = 2050 - 1900;
+ tm.tm_mon = 2 - 1;
+ tm.tm_mday = 1;
+ tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+ tm.tm_isdst = -1;
+
+ /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0"
+ instead of "TZ=America/Vancouver" in order to detect the bug even
+ on systems that don't support the Olson extension, or don't have the
+ full zoneinfo tables installed. */
+ putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
+
+ t = mktime (&tm);
+
+ /* Check that the result is either a failure, or close enough
+ to the correct answer that we can assume the discrepancy is
+ due to leap seconds. */
+ return (t == (time_t) -1
+ || (0 < t && answer - 120 <= t && t <= answer + 120));
+}
+
+int
+main ()
+{
+ time_t t, delta;
+ int i, j;
+
+ /* This test makes some buggy mktime implementations loop.
+ Give up after 60 seconds; a mktime slower than that
+ isn't worth using anyway. */
+ alarm (60);
+
+ for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
+ continue;
+ time_t_max--;
+ if ((time_t) -1 < 0)
+ for (time_t_min = -1; (time_t) (time_t_min * 2) < 0; time_t_min *= 2)
+ continue;
+ delta = time_t_max / 997; /* a suitable prime number */
+ for (i = 0; i < N_STRINGS; i++)
+ {
+ if (tz_strings[i])
+ putenv (tz_strings[i]);
+
+ for (t = 0; t <= time_t_max - delta; t += delta)
+ if (! mktime_test (t))
+ return 1;
+ if (! (mktime_test ((time_t) 1)
+ && mktime_test ((time_t) (60 * 60))
+ && mktime_test ((time_t) (60 * 60 * 24))))
+ return 1;
+
+ for (j = 1; 0 < j; j *= 2)
+ if (! bigtime_test (j))
+ return 1;
+ if (! bigtime_test (j - 1))
+ return 1;
+ }
+ return ! (irix_6_4_bug () && spring_forward_gap () && year_2050_test ());
+}]])],
+ [ac_cv_func_working_mktime=yes],
+ [ac_cv_func_working_mktime=no],
+ [ac_cv_func_working_mktime=no])])
+if test $ac_cv_func_working_mktime = no; then
+ AC_LIBOBJ([mktime])
+fi
+])# AC_FUNC_MKTIME
+
+
+# AU::AM_FUNC_MKTIME
+# ------------------
+AU_ALIAS([AM_FUNC_MKTIME], [AC_FUNC_MKTIME])
+
+
+# AC_FUNC_MMAP
+# ------------
+AN_FUNCTION([mmap], [AC_FUNC_MMAP])
+AC_DEFUN([AC_FUNC_MMAP],
+[AC_CHECK_HEADERS(stdlib.h unistd.h)
+AC_CHECK_FUNCS(getpagesize)
+AC_CACHE_CHECK(for working mmap, ac_cv_func_mmap_fixed_mapped,
+[AC_RUN_IFELSE([AC_LANG_SOURCE([AC_INCLUDES_DEFAULT]
+[[/* malloc might have been renamed as rpl_malloc. */
+#undef malloc
+
+/* Thanks to Mike Haertel and Jim Avera for this test.
+ Here is a matrix of mmap possibilities:
+ mmap private not fixed
+ mmap private fixed at somewhere currently unmapped
+ mmap private fixed at somewhere already mapped
+ mmap shared not fixed
+ mmap shared fixed at somewhere currently unmapped
+ mmap shared fixed at somewhere already mapped
+ For private mappings, we should verify that changes cannot be read()
+ back from the file, nor mmap's back from the file at a different
+ address. (There have been systems where private was not correctly
+ implemented like the infamous i386 svr4.0, and systems where the
+ VM page cache was not coherent with the file system buffer cache
+ like early versions of FreeBSD and possibly contemporary NetBSD.)
+ For shared mappings, we should conversely verify that changes get
+ propagated back to all the places they're supposed to be.
+
+ Grep wants private fixed already mapped.
+ The main things grep needs to know about mmap are:
+ * does it exist and is it safe to write into the mmap'd area
+ * how to use it (BSD variants) */
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#if !defined STDC_HEADERS && !defined HAVE_STDLIB_H
+char *malloc ();
+#endif
+
+/* This mess was copied from the GNU getpagesize.h. */
+#ifndef HAVE_GETPAGESIZE
+/* Assume that all systems that can run configure have sys/param.h. */
+# ifndef HAVE_SYS_PARAM_H
+# define HAVE_SYS_PARAM_H 1
+# endif
+
+# ifdef _SC_PAGESIZE
+# define getpagesize() sysconf(_SC_PAGESIZE)
+# else /* no _SC_PAGESIZE */
+# ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+# ifdef EXEC_PAGESIZE
+# define getpagesize() EXEC_PAGESIZE
+# else /* no EXEC_PAGESIZE */
+# ifdef NBPG
+# define getpagesize() NBPG * CLSIZE
+# ifndef CLSIZE
+# define CLSIZE 1
+# endif /* no CLSIZE */
+# else /* no NBPG */
+# ifdef NBPC
+# define getpagesize() NBPC
+# else /* no NBPC */
+# ifdef PAGESIZE
+# define getpagesize() PAGESIZE
+# endif /* PAGESIZE */
+# endif /* no NBPC */
+# endif /* no NBPG */
+# endif /* no EXEC_PAGESIZE */
+# else /* no HAVE_SYS_PARAM_H */
+# define getpagesize() 8192 /* punt totally */
+# endif /* no HAVE_SYS_PARAM_H */
+# endif /* no _SC_PAGESIZE */
+
+#endif /* no HAVE_GETPAGESIZE */
+
+int
+main ()
+{
+ char *data, *data2, *data3;
+ int i, pagesize;
+ int fd;
+
+ pagesize = getpagesize ();
+
+ /* First, make a file with some known garbage in it. */
+ data = (char *) malloc (pagesize);
+ if (!data)
+ return 1;
+ for (i = 0; i < pagesize; ++i)
+ *(data + i) = rand ();
+ umask (0);
+ fd = creat ("conftest.mmap", 0600);
+ if (fd < 0)
+ return 1;
+ if (write (fd, data, pagesize) != pagesize)
+ return 1;
+ close (fd);
+
+ /* Next, try to mmap the file at a fixed address which already has
+ something else allocated at it. If we can, also make sure that
+ we see the same garbage. */
+ fd = open ("conftest.mmap", O_RDWR);
+ if (fd < 0)
+ return 1;
+ data2 = (char *) malloc (2 * pagesize);
+ if (!data2)
+ return 1;
+ data2 += (pagesize - ((long int) data2 & (pagesize - 1))) & (pagesize - 1);
+ if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_FIXED, fd, 0L))
+ return 1;
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data2 + i))
+ return 1;
+
+ /* Finally, make sure that changes to the mapped area do not
+ percolate back to the file as seen by read(). (This is a bug on
+ some variants of i386 svr4.0.) */
+ for (i = 0; i < pagesize; ++i)
+ *(data2 + i) = *(data2 + i) + 1;
+ data3 = (char *) malloc (pagesize);
+ if (!data3)
+ return 1;
+ if (read (fd, data3, pagesize) != pagesize)
+ return 1;
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data3 + i))
+ return 1;
+ close (fd);
+ return 0;
+}]])],
+ [ac_cv_func_mmap_fixed_mapped=yes],
+ [ac_cv_func_mmap_fixed_mapped=no],
+ [ac_cv_func_mmap_fixed_mapped=no])])
+if test $ac_cv_func_mmap_fixed_mapped = yes; then
+ AC_DEFINE(HAVE_MMAP, 1,
+ [Define to 1 if you have a working `mmap' system call.])
+fi
+rm -f conftest.mmap
+])# AC_FUNC_MMAP
+
+
+# AU::AC_MMAP
+# -----------
+AU_ALIAS([AC_MMAP], [AC_FUNC_MMAP])
+
+
+# AC_FUNC_OBSTACK
+# ---------------
+# Ensure obstack support. Yeah, this is not exactly a `FUNC' check.
+AN_FUNCTION([obstack_init], [AC_FUNC_OBSTACK])
+AN_IDENTIFIER([obstack], [AC_FUNC_OBSTACK])
+AC_DEFUN([AC_FUNC_OBSTACK],
+[AC_LIBSOURCES([obstack.h, obstack.c])dnl
+AC_CACHE_CHECK([for obstacks], ac_cv_func_obstack,
+[AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+ [@%:@include "obstack.h"]],
+ [[struct obstack mem;
+ @%:@define obstack_chunk_alloc malloc
+ @%:@define obstack_chunk_free free
+ obstack_init (&mem);
+ obstack_free (&mem, 0);]])],
+ [ac_cv_func_obstack=yes],
+ [ac_cv_func_obstack=no])])
+if test $ac_cv_func_obstack = yes; then
+ AC_DEFINE(HAVE_OBSTACK, 1, [Define to 1 if libc includes obstacks.])
+else
+ AC_LIBOBJ(obstack)
+fi
+])# AC_FUNC_OBSTACK
+
+
+# AU::AM_FUNC_OBSTACK
+# -------------------
+AU_ALIAS([AM_FUNC_OBSTACK], [AC_FUNC_OBSTACK])
+
+
+
+# _AC_FUNC_REALLOC_IF(IF-WORKS, IF-NOT)
+# -------------------------------------
+# If `realloc (0, 0)' is properly handled, run IF-WORKS, otherwise, IF-NOT.
+AC_DEFUN([_AC_FUNC_REALLOC_IF],
+[AC_REQUIRE([AC_HEADER_STDC])dnl
+AC_CHECK_HEADERS(stdlib.h)
+AC_CACHE_CHECK([for GNU libc compatible realloc], ac_cv_func_realloc_0_nonnull,
+[AC_RUN_IFELSE(
+[AC_LANG_PROGRAM(
+[[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+char *realloc ();
+#endif
+]],
+ [return ! realloc (0, 0);])],
+ [ac_cv_func_realloc_0_nonnull=yes],
+ [ac_cv_func_realloc_0_nonnull=no],
+ [ac_cv_func_realloc_0_nonnull=no])])
+AS_IF([test $ac_cv_func_realloc_0_nonnull = yes], [$1], [$2])
+])# AC_FUNC_REALLOC
+
+
+# AC_FUNC_REALLOC
+# ---------------
+# Report whether `realloc (0, 0)' is properly handled, and replace realloc if
+# needed.
+AN_FUNCTION([realloc], [AC_FUNC_REALLOC])
+AC_DEFUN([AC_FUNC_REALLOC],
+[_AC_FUNC_REALLOC_IF(
+ [AC_DEFINE([HAVE_REALLOC], 1,
+ [Define to 1 if your system has a GNU libc compatible `realloc'
+ function, and to 0 otherwise.])],
+ [AC_DEFINE([HAVE_REALLOC], 0)
+ AC_LIBOBJ([realloc])
+ AC_DEFINE([realloc], [rpl_realloc],
+ [Define to rpl_realloc if the replacement function should be used.])])
+])# AC_FUNC_REALLOC
+
+
+# AC_FUNC_SELECT_ARGTYPES
+# -----------------------
+# Determine the correct type to be passed to each of the `select'
+# function's arguments, and define those types in `SELECT_TYPE_ARG1',
+# `SELECT_TYPE_ARG234', and `SELECT_TYPE_ARG5'.
+AN_FUNCTION([select], [AC_FUNC_SELECT_ARGTYPES])
+AC_DEFUN([AC_FUNC_SELECT_ARGTYPES],
+[AC_CHECK_HEADERS(sys/select.h sys/socket.h)
+AC_CACHE_CHECK([types of arguments for select],
+[ac_cv_func_select_args],
+[for ac_arg234 in 'fd_set *' 'int *' 'void *'; do
+ for ac_arg1 in 'int' 'size_t' 'unsigned long int' 'unsigned int'; do
+ for ac_arg5 in 'struct timeval *' 'const struct timeval *'; do
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+[AC_INCLUDES_DEFAULT
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+],
+ [extern int select ($ac_arg1,
+ $ac_arg234, $ac_arg234, $ac_arg234,
+ $ac_arg5);])],
+ [ac_cv_func_select_args="$ac_arg1,$ac_arg234,$ac_arg5"; break 3])
+ done
+ done
+done
+# Provide a safe default value.
+: ${ac_cv_func_select_args='int,int *,struct timeval *'}
+])
+ac_save_IFS=$IFS; IFS=','
+set dummy `echo "$ac_cv_func_select_args" | sed 's/\*/\*/g'`
+IFS=$ac_save_IFS
+shift
+AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for `select'.])
+AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG234, ($[2]),
+ [Define to the type of args 2, 3 and 4 for `select'.])
+AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG5, ($[3]),
+ [Define to the type of arg 5 for `select'.])
+rm -f conftest*
+])# AC_FUNC_SELECT_ARGTYPES
+
+
+# AC_FUNC_SETPGRP
+# ---------------
+AN_FUNCTION([setpgrp], [AC_FUNC_SETPGRP])
+AC_DEFUN([AC_FUNC_SETPGRP],
+[AC_CACHE_CHECK(whether setpgrp takes no argument, ac_cv_func_setpgrp_void,
+[AC_RUN_IFELSE(
+[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+[/* If this system has a BSD-style setpgrp which takes arguments,
+ setpgrp(1, 1) will fail with ESRCH and return -1, in that case
+ exit successfully. */
+ return setpgrp (1,1) != -1;])],
+ [ac_cv_func_setpgrp_void=no],
+ [ac_cv_func_setpgrp_void=yes],
+ [AC_MSG_ERROR([cannot check setpgrp when cross compiling])])])
+if test $ac_cv_func_setpgrp_void = yes; then
+ AC_DEFINE(SETPGRP_VOID, 1,
+ [Define to 1 if the `setpgrp' function takes no argument.])
+fi
+])# AC_FUNC_SETPGRP
+
+
+# _AC_FUNC_STAT(STAT | LSTAT)
+# ---------------------------
+# Determine whether stat or lstat have the bug that it succeeds when
+# given the zero-length file name argument. The stat and lstat from
+# SunOS4.1.4 and the Hurd (as of 1998-11-01) do this.
+#
+# If it does, then define HAVE_STAT_EMPTY_STRING_BUG (or
+# HAVE_LSTAT_EMPTY_STRING_BUG) and arrange to compile the wrapper
+# function.
+m4_define([_AC_FUNC_STAT],
+[AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])dnl
+AC_CACHE_CHECK([whether $1 accepts an empty string],
+ [ac_cv_func_$1_empty_string_bug],
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+[[struct stat sbuf;
+ return $1 ("", &sbuf) == 0;]])],
+ [ac_cv_func_$1_empty_string_bug=no],
+ [ac_cv_func_$1_empty_string_bug=yes],
+ [ac_cv_func_$1_empty_string_bug=yes])])
+if test $ac_cv_func_$1_empty_string_bug = yes; then
+ AC_LIBOBJ([$1])
+ AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1_EMPTY_STRING_BUG]), 1,
+ [Define to 1 if `$1' has the bug that it succeeds when
+ given the zero-length file name argument.])
+fi
+])# _AC_FUNC_STAT
+
+
+# AC_FUNC_STAT & AC_FUNC_LSTAT
+# ----------------------------
+AN_FUNCTION([stat], [AC_FUNC_STAT])
+AC_DEFUN([AC_FUNC_STAT], [_AC_FUNC_STAT(stat)])
+AN_FUNCTION([lstat], [AC_FUNC_LSTAT])
+AC_DEFUN([AC_FUNC_LSTAT], [_AC_FUNC_STAT(lstat)])
+
+
+# _AC_LIBOBJ_STRTOD
+# -----------------
+m4_define([_AC_LIBOBJ_STRTOD],
+[AC_LIBOBJ(strtod)
+AC_CHECK_FUNC(pow)
+if test $ac_cv_func_pow = no; then
+ AC_CHECK_LIB(m, pow,
+ [POW_LIB=-lm],
+ [AC_MSG_WARN([cannot find library containing definition of pow])])
+fi
+])# _AC_LIBOBJ_STRTOD
+
+
+# AC_FUNC_STRTOD
+# --------------
+AN_FUNCTION([strtod], [AC_FUNC_STRTOD])
+AC_DEFUN([AC_FUNC_STRTOD],
+[AC_SUBST(POW_LIB)dnl
+AC_CACHE_CHECK(for working strtod, ac_cv_func_strtod,
+[AC_RUN_IFELSE([AC_LANG_SOURCE([[
+]AC_INCLUDES_DEFAULT[
+#ifndef strtod
+double strtod ();
+#endif
+int
+main()
+{
+ {
+ /* Some versions of Linux strtod mis-parse strings with leading '+'. */
+ char *string = " +69";
+ char *term;
+ double value;
+ value = strtod (string, &term);
+ if (value != 69 || term != (string + 4))
+ return 1;
+ }
+
+ {
+ /* Under Solaris 2.4, strtod returns the wrong value for the
+ terminating character under some conditions. */
+ char *string = "NaN";
+ char *term;
+ strtod (string, &term);
+ if (term != string && *(term - 1) == 0)
+ return 1;
+ }
+ return 0;
+}
+]])],
+ ac_cv_func_strtod=yes,
+ ac_cv_func_strtod=no,
+ ac_cv_func_strtod=no)])
+if test $ac_cv_func_strtod = no; then
+ _AC_LIBOBJ_STRTOD
+fi
+])
+
+
+# AC_FUNC_STRTOLD
+# ---------------
+AC_DEFUN([AC_FUNC_STRTOLD],
+[
+ AC_CACHE_CHECK([whether strtold conforms to C99],
+ [ac_cv_func_strtold],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[/* On HP-UX before 11.23, strtold returns a struct instead of
+ long double. Reject implementations like that, by requiring
+ compatibility with the C99 prototype. */
+# include <stdlib.h>
+ static long double (*p) (char const *, char **) = strtold;
+ static long double
+ test (char const *nptr, char **endptr)
+ {
+ long double r;
+ r = strtold (nptr, endptr);
+ return r;
+ }]],
+ [[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])],
+ [ac_cv_func_strtold=yes],
+ [ac_cv_func_strtold=no])])
+ if test $ac_cv_func_strtold = yes; then
+ AC_DEFINE([HAVE_STRTOLD], 1,
+ [Define to 1 if strtold exists and conforms to C99.])
+ fi
+])# AC_FUNC_STRTOLD
+
+
+# AU::AM_FUNC_STRTOD
+# ------------------
+AU_ALIAS([AM_FUNC_STRTOD], [AC_FUNC_STRTOD])
+
+
+# AC_FUNC_STRERROR_R
+# ------------------
+AN_FUNCTION([strerror_r], [AC_FUNC_STRERROR_R])
+AC_DEFUN([AC_FUNC_STRERROR_R],
+[AC_CHECK_DECLS([strerror_r])
+AC_CHECK_FUNCS([strerror_r])
+AC_CACHE_CHECK([whether strerror_r returns char *],
+ ac_cv_func_strerror_r_char_p,
+ [
+ ac_cv_func_strerror_r_char_p=no
+ if test $ac_cv_have_decl_strerror_r = yes; then
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[
+ char buf[100];
+ char x = *strerror_r (0, buf, sizeof buf);
+ char *p = strerror_r (0, buf, sizeof buf);
+ return !p || x;
+ ]])],
+ ac_cv_func_strerror_r_char_p=yes)
+ else
+ # strerror_r is not declared. Choose between
+ # systems that have relatively inaccessible declarations for the
+ # function. BeOS and DEC UNIX 4.0 fall in this category, but the
+ # former has a strerror_r that returns char*, while the latter
+ # has a strerror_r that returns `int'.
+ # This test should segfault on the DEC system.
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+ extern char *strerror_r ();],
+ [[char buf[100];
+ char x = *strerror_r (0, buf, sizeof buf);
+ return ! isalpha (x);]])],
+ ac_cv_func_strerror_r_char_p=yes, , :)
+ fi
+ ])
+if test $ac_cv_func_strerror_r_char_p = yes; then
+ AC_DEFINE([STRERROR_R_CHAR_P], 1,
+ [Define to 1 if strerror_r returns char *.])
+fi
+])# AC_FUNC_STRERROR_R
+
+
+# AC_FUNC_STRFTIME
+# ----------------
+AN_FUNCTION([strftime], [AC_FUNC_STRFTIME])
+AC_DEFUN([AC_FUNC_STRFTIME],
+[AC_CHECK_FUNCS(strftime, [],
+[# strftime is in -lintl on SCO UNIX.
+AC_CHECK_LIB(intl, strftime,
+ [AC_DEFINE(HAVE_STRFTIME)
+LIBS="-lintl $LIBS"])])dnl
+])# AC_FUNC_STRFTIME
+
+
+# AC_FUNC_STRNLEN
+# ---------------
+AN_FUNCTION([strnlen], [AC_FUNC_STRNLEN])
+AC_DEFUN([AC_FUNC_STRNLEN],
+[AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl
+AC_CACHE_CHECK([for working strnlen], ac_cv_func_strnlen_working,
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[
+#define S "foobar"
+#define S_LEN (sizeof S - 1)
+
+ /* At least one implementation is buggy: that of AIX 4.3 would
+ give strnlen (S, 1) == 3. */
+
+ int i;
+ for (i = 0; i < S_LEN + 1; ++i)
+ {
+ int expected = i <= S_LEN ? i : S_LEN;
+ if (strnlen (S, i) != expected)
+ return 1;
+ }
+ return 0;
+]])],
+ [ac_cv_func_strnlen_working=yes],
+ [ac_cv_func_strnlen_working=no],
+ [ac_cv_func_strnlen_working=no])])
+test $ac_cv_func_strnlen_working = no && AC_LIBOBJ([strnlen])
+])# AC_FUNC_STRNLEN
+
+
+# AC_FUNC_SETVBUF_REVERSED
+# ------------------------
+AN_FUNCTION([setvbuf], [AC_FUNC_SETVBUF_REVERSED])
+AC_DEFUN([AC_FUNC_SETVBUF_REVERSED],
+[AC_REQUIRE([AC_C_PROTOTYPES])dnl
+AC_CACHE_CHECK(whether setvbuf arguments are reversed,
+ ac_cv_func_setvbuf_reversed,
+ [ac_cv_func_setvbuf_reversed=no
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdio.h>
+# ifdef PROTOTYPES
+ int (setvbuf) (FILE *, int, char *, size_t);
+# endif]],
+ [[char buf; return setvbuf (stdout, _IOLBF, &buf, 1);]])],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdio.h>
+# ifdef PROTOTYPES
+ int (setvbuf) (FILE *, int, char *, size_t);
+# endif]],
+ [[char buf; return setvbuf (stdout, &buf, _IOLBF, 1);]])],
+ [# It compiles and links either way, so it must not be declared
+ # with a prototype and most likely this is a K&R C compiler.
+ # Try running it.
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT],
+ [[/* This call has the arguments reversed.
+ A reversed system may check and see that the address of buf
+ is not _IOLBF, _IONBF, or _IOFBF, and return nonzero. */
+ char buf;
+ if (setvbuf (stdout, _IOLBF, &buf, 1) != 0)
+ return 1;
+ putchar ('\r');
+ return 0; /* Non-reversed systems SEGV here. */]])],
+ [ac_cv_func_setvbuf_reversed=yes],
+ [],
+ [[: # Assume setvbuf is not reversed when cross-compiling.]])]
+ ac_cv_func_setvbuf_reversed=yes)])])
+if test $ac_cv_func_setvbuf_reversed = yes; then
+ AC_DEFINE(SETVBUF_REVERSED, 1,
+ [Define to 1 if the `setvbuf' function takes the buffering type as
+ its second argument and the buffer pointer as the third, as on
+ System V before release 3.])
+fi
+])# AC_FUNC_SETVBUF_REVERSED
+
+
+# AU::AC_SETVBUF_REVERSED
+# -----------------------
+AU_ALIAS([AC_SETVBUF_REVERSED], [AC_FUNC_SETVBUF_REVERSED])
+
+
+# AC_FUNC_STRCOLL
+# ---------------
+AN_FUNCTION([strcoll], [AC_FUNC_STRCOLL])
+AC_DEFUN([AC_FUNC_STRCOLL],
+[AC_CACHE_CHECK(for working strcoll, ac_cv_func_strcoll_works,
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [[return (strcoll ("abc", "def") >= 0 ||
+ strcoll ("ABC", "DEF") >= 0 ||
+ strcoll ("123", "456") >= 0)]])],
+ ac_cv_func_strcoll_works=yes,
+ ac_cv_func_strcoll_works=no,
+ ac_cv_func_strcoll_works=no)])
+if test $ac_cv_func_strcoll_works = yes; then
+ AC_DEFINE(HAVE_STRCOLL, 1,
+ [Define to 1 if you have the `strcoll' function and it is properly
+ defined.])
+fi
+])# AC_FUNC_STRCOLL
+
+
+# AU::AC_STRCOLL
+# --------------
+AU_ALIAS([AC_STRCOLL], [AC_FUNC_STRCOLL])
+
+
+# AC_FUNC_UTIME_NULL
+# ------------------
+AN_FUNCTION([utime], [AC_FUNC_UTIME_NULL])
+AC_DEFUN([AC_FUNC_UTIME_NULL],
+[AC_CHECK_HEADERS_ONCE(utime.h)
+AC_CACHE_CHECK(whether utime accepts a null argument, ac_cv_func_utime_null,
+[rm -f conftest.data; >conftest.data
+# Sequent interprets utime(file, 0) to mean use start of epoch. Wrong.
+AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+ #ifdef HAVE_UTIME_H
+ # include <utime.h>
+ #endif],
+[[struct stat s, t;
+ return ! (stat ("conftest.data", &s) == 0
+ && utime ("conftest.data", 0) == 0
+ && stat ("conftest.data", &t) == 0
+ && t.st_mtime >= s.st_mtime
+ && t.st_mtime - s.st_mtime < 120);]])],
+ ac_cv_func_utime_null=yes,
+ ac_cv_func_utime_null=no,
+ ac_cv_func_utime_null=no)])
+if test $ac_cv_func_utime_null = yes; then
+ AC_DEFINE(HAVE_UTIME_NULL, 1,
+ [Define to 1 if `utime(file, NULL)' sets file's timestamp to the
+ present.])
+fi
+rm -f conftest.data
+])# AC_FUNC_UTIME_NULL
+
+
+# AU::AC_UTIME_NULL
+# -----------------
+AU_ALIAS([AC_UTIME_NULL], [AC_FUNC_UTIME_NULL])
+
+
+# AC_FUNC_FORK
+# -------------
+AN_FUNCTION([fork], [AC_FUNC_FORK])
+AN_FUNCTION([vfork], [AC_FUNC_FORK])
+AC_DEFUN([AC_FUNC_FORK],
+[AC_REQUIRE([AC_TYPE_PID_T])dnl
+AC_CHECK_HEADERS(vfork.h)
+AC_CHECK_FUNCS(fork vfork)
+if test "x$ac_cv_func_fork" = xyes; then
+ _AC_FUNC_FORK
+else
+ ac_cv_func_fork_works=$ac_cv_func_fork
+fi
+if test "x$ac_cv_func_fork_works" = xcross; then
+ case $host in
+ *-*-amigaos* | *-*-msdosdjgpp*)
+ # Override, as these systems have only a dummy fork() stub
+ ac_cv_func_fork_works=no
+ ;;
+ *)
+ ac_cv_func_fork_works=yes
+ ;;
+ esac
+ AC_MSG_WARN([result $ac_cv_func_fork_works guessed because of cross compilation])
+fi
+ac_cv_func_vfork_works=$ac_cv_func_vfork
+if test "x$ac_cv_func_vfork" = xyes; then
+ _AC_FUNC_VFORK
+fi;
+if test "x$ac_cv_func_fork_works" = xcross; then
+ ac_cv_func_vfork_works=$ac_cv_func_vfork
+ AC_MSG_WARN([result $ac_cv_func_vfork_works guessed because of cross compilation])
+fi
+
+if test "x$ac_cv_func_vfork_works" = xyes; then
+ AC_DEFINE(HAVE_WORKING_VFORK, 1, [Define to 1 if `vfork' works.])
+else
+ AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.])
+fi
+if test "x$ac_cv_func_fork_works" = xyes; then
+ AC_DEFINE(HAVE_WORKING_FORK, 1, [Define to 1 if `fork' works.])
+fi
+])# AC_FUNC_FORK
+
+
+# _AC_FUNC_FORK
+# -------------
+AC_DEFUN([_AC_FUNC_FORK],
+ [AC_CACHE_CHECK(for working fork, ac_cv_func_fork_works,
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+ [
+ /* By Ruediger Kuhlmann. */
+ return fork () < 0;
+ ])],
+ [ac_cv_func_fork_works=yes],
+ [ac_cv_func_fork_works=no],
+ [ac_cv_func_fork_works=cross])])]
+)# _AC_FUNC_FORK
+
+
+# _AC_FUNC_VFORK
+# -------------
+AC_DEFUN([_AC_FUNC_VFORK],
+[AC_CACHE_CHECK(for working vfork, ac_cv_func_vfork_works,
+[AC_RUN_IFELSE([AC_LANG_SOURCE([[/* Thanks to Paul Eggert for this test. */
+]AC_INCLUDES_DEFAULT[
+#include <sys/wait.h>
+#ifdef HAVE_VFORK_H
+# include <vfork.h>
+#endif
+/* On some sparc systems, changes by the child to local and incoming
+ argument registers are propagated back to the parent. The compiler
+ is told about this with #include <vfork.h>, but some compilers
+ (e.g. gcc -O) don't grok <vfork.h>. Test for this by using a
+ static variable whose address is put into a register that is
+ clobbered by the vfork. */
+static void
+#ifdef __cplusplus
+sparc_address_test (int arg)
+# else
+sparc_address_test (arg) int arg;
+#endif
+{
+ static pid_t child;
+ if (!child) {
+ child = vfork ();
+ if (child < 0) {
+ perror ("vfork");
+ _exit(2);
+ }
+ if (!child) {
+ arg = getpid();
+ write(-1, "", 0);
+ _exit (arg);
+ }
+ }
+}
+
+int
+main ()
+{
+ pid_t parent = getpid ();
+ pid_t child;
+
+ sparc_address_test (0);
+
+ child = vfork ();
+
+ if (child == 0) {
+ /* Here is another test for sparc vfork register problems. This
+ test uses lots of local variables, at least as many local
+ variables as main has allocated so far including compiler
+ temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris
+ 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should
+ reuse the register of parent for one of the local variables,
+ since it will think that parent can't possibly be used any more
+ in this routine. Assigning to the local variable will thus
+ munge parent in the parent process. */
+ pid_t
+ p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
+ p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
+ /* Convince the compiler that p..p7 are live; otherwise, it might
+ use the same hardware register for all 8 local variables. */
+ if (p != p1 || p != p2 || p != p3 || p != p4
+ || p != p5 || p != p6 || p != p7)
+ _exit(1);
+
+ /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent
+ from child file descriptors. If the child closes a descriptor
+ before it execs or exits, this munges the parent's descriptor
+ as well. Test for this by closing stdout in the child. */
+ _exit(close(fileno(stdout)) != 0);
+ } else {
+ int status;
+ struct stat st;
+
+ while (wait(&status) != child)
+ ;
+ return (
+ /* Was there some problem with vforking? */
+ child < 0
+
+ /* Did the child fail? (This shouldn't happen.) */
+ || status
+
+ /* Did the vfork/compiler bug occur? */
+ || parent != getpid()
+
+ /* Did the file descriptor bug occur? */
+ || fstat(fileno(stdout), &st) != 0
+ );
+ }
+}]])],
+ [ac_cv_func_vfork_works=yes],
+ [ac_cv_func_vfork_works=no],
+ [ac_cv_func_vfork_works=cross])])
+])# _AC_FUNC_VFORK
+
+
+# AU::AC_FUNC_VFORK
+# ------------
+AU_ALIAS([AC_FUNC_VFORK], [AC_FUNC_FORK])
+
+# AU::AC_VFORK
+# ------------
+AU_ALIAS([AC_VFORK], [AC_FUNC_FORK])
+
+
+# AC_FUNC_VPRINTF
+# ---------------
+# Why the heck is that _doprnt does not define HAVE__DOPRNT???
+# That the logical name!
+AN_FUNCTION([vfprintf], [AC_FUNC_VPRINTF])
+AN_FUNCTION([vprintf], [AC_FUNC_VPRINTF])
+AN_FUNCTION([vsprintf], [AC_FUNC_VPRINTF])
+AN_FUNCTION([_doprnt], [AC_FUNC_VPRINTF])
+AC_DEFUN([AC_FUNC_VPRINTF],
+[AC_CHECK_FUNCS(vprintf, []
+[AC_CHECK_FUNC(_doprnt,
+ [AC_DEFINE(HAVE_DOPRNT, 1,
+ [Define to 1 if you don't have `vprintf' but do have
+ `_doprnt.'])])])
+])
+
+
+# AU::AC_VPRINTF
+# --------------
+AU_ALIAS([AC_VPRINTF], [AC_FUNC_VPRINTF])
+
+
+# AC_FUNC_WAIT3
+# -------------
+# Don't bother too hard maintaining this macro, as it's obsoleted.
+# We don't AU define it, since we don't have any alternative to propose,
+# any invocation should be removed, and the code adjusted.
+AN_FUNCTION([wait3], [AC_FUNC_WAIT3])
+AC_DEFUN([AC_FUNC_WAIT3],
+[AC_DIAGNOSE([obsolete],
+[$0: `wait3' has been removed from POSIX.
+Remove this `AC_FUNC_WAIT3' and adjust your code to use `waitpid' instead.])dnl
+AC_CACHE_CHECK([for wait3 that fills in rusage],
+ [ac_cv_func_wait3_rusage],
+[AC_RUN_IFELSE([AC_LANG_SOURCE(
+[AC_INCLUDES_DEFAULT[
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
+/* HP-UX has wait3 but does not fill in rusage at all. */
+int
+main ()
+{
+ struct rusage r;
+ int i;
+ /* Use a field that we can force nonzero --
+ voluntary context switches.
+ For systems like NeXT and OSF/1 that don't set it,
+ also use the system CPU time. And page faults (I/O) for Linux. */
+ r.ru_nvcsw = 0;
+ r.ru_stime.tv_sec = 0;
+ r.ru_stime.tv_usec = 0;
+ r.ru_majflt = r.ru_minflt = 0;
+ switch (fork ())
+ {
+ case 0: /* Child. */
+ sleep(1); /* Give up the CPU. */
+ _exit(0);
+ break;
+ case -1: /* What can we do? */
+ _exit(0);
+ break;
+ default: /* Parent. */
+ wait3(&i, 0, &r);
+ /* Avoid "text file busy" from rm on fast HP-UX machines. */
+ sleep(2);
+ return (r.ru_nvcsw == 0 && r.ru_majflt == 0 && r.ru_minflt == 0
+ && r.ru_stime.tv_sec == 0 && r.ru_stime.tv_usec == 0);
+ }
+}]])],
+ [ac_cv_func_wait3_rusage=yes],
+ [ac_cv_func_wait3_rusage=no],
+ [ac_cv_func_wait3_rusage=no])])
+if test $ac_cv_func_wait3_rusage = yes; then
+ AC_DEFINE(HAVE_WAIT3, 1,
+ [Define to 1 if you have the `wait3' system call.
+ Deprecated, you should no longer depend upon `wait3'.])
+fi
+])# AC_FUNC_WAIT3
+
+
+# AU::AC_WAIT3
+# ------------
+AU_ALIAS([AC_WAIT3], [AC_FUNC_WAIT3])
# This file is part of Autoconf. -*- Autoconf -*-
# Parameterized macros.
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, Free Software Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
## ----------------------------- ##
-# AC_FOREACH(VARIABLE, LIST, EXPRESSION)
-# --------------------------------------
-#
-# Compute EXPRESSION assigning to VARIABLE each value of the LIST.
-# LIST is a /bin/sh list, i.e., it has the form ` item_1 item_2
-# ... item_n ': white spaces are separators, and leading and trailing
-# spaces are meaningless.
-#
-# This macro is robust to active symbols:
-# AC_FOREACH([Var], [ active
-# b act\
-# ive ], [-Var-])end
-# => -active--b--active-end
-m4_define([AC_FOREACH],
-[m4_foreach([$1], m4_split(m4_normalize([$2])), [$3])])
-
+# AU::AC_FOREACH(VARIABLE, LIST, EXPRESSION)
+# ------------------------------------------
+AU_DEFUN([AC_FOREACH], [[m4_foreach_w($@)]])
+AC_DEFUN([AC_FOREACH], [m4_foreach_w($@)dnl
+AC_DIAGNOSE([obsolete], [The macro `AC_FOREACH' is obsolete.
+You should run autoupdate.])])
# It is suggested that the macros in this section appear before
# AC_INIT in `configure.ac'. Nevertheless, this is just stylistic,
-# and from the implementation point of, AC_INIT *must* be expanded
+# and from the implementation point of view, AC_INIT *must* be expanded
# beforehand: it puts data in diversions which must appear before the
# data provided by the macros of this section.
# AC_COPYRIGHT(TEXT, [VERSION-DIVERSION = VERSION_USER])
# ------------------------------------------------------
-# Append Copyright information in the top of `configure'. TEXT is
-# evaluated once, hence TEXT can use macros. Note that we do not
-# prepend `# ' but `@%:@ ', since m4 does not evaluate the comments.
-# Had we used `# ', the Copyright sent in the beginning of `configure'
-# would have not been evaluated. Another solution, a bit fragile,
-# would have be to use m4_quote to force an evaluation:
-#
-# m4_bpatsubst(m4_quote($1), [^], [# ])
+# Emit TEXT, a copyright notice, in the top of `configure' and in
+# --version output. Macros in TEXT are evaluated once.
m4_define([AC_COPYRIGHT],
-[m4_divert_text([HEADER-COPYRIGHT],
-[m4_bpatsubst([
-$1], [^], [@%:@ ])])dnl
+[AS_COPYRIGHT([$1])[]dnl
m4_divert_text(m4_default([$2], [VERSION_USER]),
[
$1])dnl
# user copyrights, and after the setup of the --version handling.
m4_define([_AC_INIT_COPYRIGHT],
[AC_COPYRIGHT(
-[Copyright (C) 2003 Free Software Foundation, Inc.
+[Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.],
[VERSION_FSF])dnl
# ----------------
# Set up the file descriptors used by `configure'.
# File descriptor usage:
-# 0 standard input
+# 0 standard input (/dev/null)
# 1 file creation
# 2 errors and warnings
# AS_MESSAGE_LOG_FD compiler messages saved in config.log
# AS_MESSAGE_FD checking for... messages and results
-
+# AS_ORIGINAL_STDIN_FD original standard input (still open)
+#
+# stdin is /dev/null because checks that run programs may
+# inadvertently run interactive ones, which would stop configuration
+# until someone typed an EOF.
m4_define([AS_MESSAGE_FD], 6)
+m4_define([AS_ORIGINAL_STDIN_FD], 7)
# That's how they used to be named.
AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD])
AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD])
m4_define([_AC_INIT_DEFAULTS],
[m4_divert_push([DEFAULTS])dnl
+exec AS_ORIGINAL_STDIN_FD<&0 </dev/null AS_MESSAGE_FD>&1
+
# Name of the host.
# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
-exec AS_MESSAGE_FD>&1
-
#
# Initializations.
#
ac_default_prefix=/usr/local
+ac_clean_files=
ac_config_libobj_dir=.
+LIB@&t@OBJS=
cross_compiling=no
subdirs=
MFLAGS=
AC_SUBST([SHELL], [${CONFIG_SHELL-/bin/sh}])dnl
AC_SUBST([PATH_SEPARATOR])dnl
-# Maximum number of lines to put in a shell here document.
-# This variable seems obsolete. It should probably be removed, and
-# only ac_max_sed_lines should be used.
-: ${ac_max_here_lines=38}
-
# Identity of this package.
AC_SUBST([PACKAGE_NAME],
[m4_ifdef([AC_PACKAGE_NAME], ['AC_PACKAGE_NAME'])])dnl
m4_divert_pop([DEFAULTS])dnl
m4_wrap([m4_divert_text([DEFAULTS],
[ac_subst_vars='m4_ifdef([_AC_SUBST_VARS], [m4_defn([_AC_SUBST_VARS])])'
-ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'])])dnl
+ac_subst_files='m4_ifdef([_AC_SUBST_FILES], [m4_defn([_AC_SUBST_FILES])])'
+m4_ifdef([_AC_PRECIOUS_VARS],
+ [_AC_ARG_VAR_STORE[]dnl
+ _AC_ARG_VAR_VALIDATE[]dnl
+ ac_precious_vars='m4_defn([_AC_PRECIOUS_VARS])'])
+m4_ifdef([_AC_LIST_SUBDIRS],
+ [ac_subdirs_all='m4_defn([_AC_LIST_SUBDIRS])'])dnl
+])])dnl
])# _AC_INIT_DEFAULTS
# AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR])
# ---------------------------------------------
-# UNIQUE-FILE-IN-SOURCE-DIR is a filename unique to this package,
+# UNIQUE-FILE-IN-SOURCE-DIR is a file name unique to this package,
# relative to the directory that configure is in, which we can look
# for to find out if srcdir is correct.
AC_DEFUN([AC_CONFIG_SRCDIR],
[m4_divert_text([DEFAULTS], [ac_unique_file="$1"])])
+# _AC_INIT_DIRCHECK
+# -----------------
+# Set ac_pwd, and sanity-check it and the source and installation directories.
+#
+# (This macro is AC_REQUIREd by _AC_INIT_SRCDIR, so it has to be AC_DEFUNed.)
+#
+AC_DEFUN([_AC_INIT_DIRCHECK],
+[m4_divert_push([PARSE_ARGS])dnl
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+ AC_MSG_ERROR([Working directory cannot be determined])
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+ AC_MSG_ERROR([pwd does not report name of working directory])
+
+m4_divert_pop([PARSE_ARGS])dnl
+])# _AC_INIT_DIRCHECK
+
# _AC_INIT_SRCDIR
# ---------------
# Compute `srcdir' based on `$ac_unique_file'.
-m4_define([_AC_INIT_SRCDIR],
-[m4_divert_push([PARSE_ARGS])dnl
+#
+# (We have to AC_DEFUN it, since we use AC_REQUIRE.)
+#
+AC_DEFUN([_AC_INIT_SRCDIR],
+[AC_REQUIRE([_AC_INIT_DIRCHECK])dnl
+m4_divert_push([PARSE_ARGS])dnl
# Find the source files, if location was not specified.
if test -z "$srcdir"; then
ac_srcdir_defaulted=yes
- # Try the directory containing this script, then its parent.
+ # Try the directory containing this script, then the parent directory.
ac_confdir=`AS_DIRNAME(["$[0]"])`
srcdir=$ac_confdir
- if test ! -r $srcdir/$ac_unique_file; then
+ if test ! -r "$srcdir/$ac_unique_file"; then
srcdir=..
fi
else
ac_srcdir_defaulted=no
fi
-if test ! -r $srcdir/$ac_unique_file; then
- if test "$ac_srcdir_defaulted" = yes; then
- AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $ac_confdir or ..])
- else
- AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
- fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+ test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+ AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
fi
-(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
- AC_MSG_ERROR([sources are in $srcdir, but `cd $srcdir' does not work])
-dnl Double slashes in pathnames in object file debugging info
-dnl mess up M-x gdb in Emacs.
-srcdir=`echo "$srcdir" | sed 's%\([[^\\/]]\)[[\\/]]*$%\1%'`
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+ cd "$srcdir" && test -r "./$ac_unique_file" || AC_MSG_ERROR([$ac_msg])
+ pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+ srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[[^/]]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
m4_divert_pop([PARSE_ARGS])dnl
])# _AC_INIT_SRCDIR
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
AC_SUBST([bindir], ['${exec_prefix}/bin'])dnl
AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])dnl
-AC_SUBST([datadir], ['${prefix}/share'])dnl
+AC_SUBST([datarootdir], ['${prefix}/share'])dnl
+AC_SUBST([datadir], ['${datarootdir}'])dnl
AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
AC_SUBST([sharedstatedir], ['${prefix}/com'])dnl
AC_SUBST([localstatedir], ['${prefix}/var'])dnl
-AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
AC_SUBST([includedir], ['${prefix}/include'])dnl
AC_SUBST([oldincludedir], ['/usr/include'])dnl
-AC_SUBST([infodir], ['${prefix}/info'])dnl
-AC_SUBST([mandir], ['${prefix}/man'])dnl
+AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
+ ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
+ ['${datarootdir}/doc/${PACKAGE}'])])dnl
+AC_SUBST([infodir], ['${datarootdir}/info'])dnl
+AC_SUBST([htmldir], ['${docdir}'])dnl
+AC_SUBST([dvidir], ['${docdir}'])dnl
+AC_SUBST([pdfdir], ['${docdir}'])dnl
+AC_SUBST([psdir], ['${docdir}'])dnl
+AC_SUBST([libdir], ['${exec_prefix}/lib'])dnl
+AC_SUBST([localedir], ['${datarootdir}/locale'])dnl
+AC_SUBST([mandir], ['${datarootdir}/man'])dnl
ac_prev=
+ac_dashdash=
for ac_option
do
# If the previous option needs an argument, assign it.
if test -n "$ac_prev"; then
- eval "$ac_prev=\$ac_option"
+ eval $ac_prev=\$ac_option
ac_prev=
continue
fi
- ac_optarg=`expr "x$ac_option" : 'x[[^=]]*=\(.*\)'`
+ case $ac_option in
+ *=*) ac_optarg=`expr "X$ac_option" : '[[^=]]*=\(.*\)'` ;;
+ *) ac_optarg=yes ;;
+ esac
# Accept the important Cygnus configure options, so we can diagnose typos.
- case $ac_option in
+ case $ac_dashdash$ac_option in
+ --)
+ ac_dashdash=yes ;;
-bindir | --bindir | --bindi | --bind | --bin | --bi)
ac_prev=bindir ;;
--config-cache | -C)
cache_file=config.cache ;;
- -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+ -datadir | --datadir | --datadi | --datad)
ac_prev=datadir ;;
- -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
- | --da=*)
+ -datadir=* | --datadir=* | --datadi=* | --datad=*)
datadir=$ac_optarg ;;
- -disable-* | --disable-*)
- ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
- # Reject names that are not valid shell variable names.
- expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
- AC_MSG_ERROR([invalid feature name: $ac_feature])
- ac_feature=`echo $ac_feature | sed 's/-/_/g'`
- eval "enable_$ac_feature=no" ;;
+ -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+ | --dataroo | --dataro | --datar)
+ ac_prev=datarootdir ;;
+ -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+ | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+ datarootdir=$ac_optarg ;;
- -enable-* | --enable-*)
- ac_feature=`expr "x$ac_option" : 'x-*enable-\([[^=]]*\)'`
- # Reject names that are not valid shell variable names.
- expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
- AC_MSG_ERROR([invalid feature name: $ac_feature])
- ac_feature=`echo $ac_feature | sed 's/-/_/g'`
- case $ac_option in
- *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
- *) ac_optarg=yes ;;
- esac
- eval "enable_$ac_feature='$ac_optarg'" ;;
+ _AC_INIT_PARSE_ENABLE([disable], [feature], [no])
+
+ -docdir | --docdir | --docdi | --doc | --do)
+ ac_prev=docdir ;;
+ -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+ docdir=$ac_optarg ;;
+
+ -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+ ac_prev=dvidir ;;
+ -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+ dvidir=$ac_optarg ;;
+
+ _AC_INIT_PARSE_ENABLE([enable], [feature], [\$ac_optarg])
-exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
| --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
-host=* | --host=* | --hos=* | --ho=*)
host_alias=$ac_optarg ;;
+ -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+ ac_prev=htmldir ;;
+ -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+ | --ht=*)
+ htmldir=$ac_optarg ;;
+
-includedir | --includedir | --includedi | --included | --include \
| --includ | --inclu | --incl | --inc)
ac_prev=includedir ;;
| --libexe=* | --libex=* | --libe=*)
libexecdir=$ac_optarg ;;
+ -localedir | --localedir | --localedi | --localed | --locale)
+ ac_prev=localedir ;;
+ -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+ localedir=$ac_optarg ;;
+
-localstatedir | --localstatedir | --localstatedi | --localstated \
- | --localstate | --localstat | --localsta | --localst \
- | --locals | --local | --loca | --loc | --lo)
+ | --localstate | --localstat | --localsta | --localst | --locals)
ac_prev=localstatedir ;;
-localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
- | --localstate=* | --localstat=* | --localsta=* | --localst=* \
- | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+ | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
localstatedir=$ac_optarg ;;
-mandir | --mandir | --mandi | --mand | --man | --ma | --m)
| --progr-tra=* | --program-tr=* | --program-t=*)
program_transform_name=$ac_optarg ;;
+ -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+ ac_prev=pdfdir ;;
+ -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+ pdfdir=$ac_optarg ;;
+
+ -psdir | --psdir | --psdi | --psd | --ps)
+ ac_prev=psdir ;;
+ -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+ psdir=$ac_optarg ;;
+
-q | -quiet | --quiet | --quie | --qui | --qu | --q \
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
-version | --version | --versio | --versi | --vers | -V)
ac_init_version=: ;;
- -with-* | --with-*)
- ac_package=`expr "x$ac_option" : 'x-*with-\([[^=]]*\)'`
- # Reject names that are not valid shell variable names.
- expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
- AC_MSG_ERROR([invalid package name: $ac_package])
- ac_package=`echo $ac_package| sed 's/-/_/g'`
- case $ac_option in
- *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
- *) ac_optarg=yes ;;
- esac
- eval "with_$ac_package='$ac_optarg'" ;;
+ _AC_INIT_PARSE_ENABLE([with], [package], [\$ac_optarg])
- -without-* | --without-*)
- ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
- # Reject names that are not valid shell variable names.
- expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
- AC_MSG_ERROR([invalid package name: $ac_package])
- ac_package=`echo $ac_package | sed 's/-/_/g'`
- eval "with_$ac_package=no" ;;
+ _AC_INIT_PARSE_ENABLE([without], [package], [no])
--x)
# Obsolete; use --with-x.
# Reject names that are not valid shell variable names.
expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
AC_MSG_ERROR([invalid variable name: $ac_envvar])
- ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
- eval "$ac_envvar='$ac_optarg'"
+ eval $ac_envvar=\$ac_optarg
export $ac_envvar ;;
*)
AC_MSG_ERROR([missing argument to $ac_option])
fi
-# Be sure to have absolute paths.
-for ac_var in exec_prefix prefix
+# Be sure to have absolute directory names.
+for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
+ datadir sysconfdir sharedstatedir localstatedir includedir \
+ oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+ libdir localedir mandir
do
- eval ac_val=$`echo $ac_var`
+ eval ac_val=\$$ac_var
case $ac_val in
- [[\\/$]]* | ?:[[\\/]]* | NONE | '' ) ;;
- *) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
- esac
-done
-
-# Be sure to have absolute paths.
-for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
- localstatedir libdir includedir oldincludedir infodir mandir
-do
- eval ac_val=$`echo $ac_var`
- case $ac_val in
- [[\\/$]]* | ?:[[\\/]]* ) ;;
- *) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
+ [[\\/$]]* | ?:[[\\/]]* ) continue;;
+ NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
esac
+ AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val])
done
# There might be people who depend on the old broken behavior: `$host'
])# _AC_INIT_PARSE_ARGS
+# _AC_INIT_PARSE_ENABLE(OPTION-NAME, FEATURE, VALUE)
+# --------------------------------------------------
+# Handle an `--enable' or a `--with' option.
+#
+m4_define([_AC_INIT_PARSE_ENABLE],
+[-$1-* | --$1-*)
+ ac_$2=`expr "x$ac_option" : 'x-*$1-\(m4_bmatch([$1], [^\(enable\|with\)$], [[[^=]]], [.])*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_$2" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
+ AC_MSG_ERROR([invalid $2 name: $ac_$2])
+ [ac_$2=`echo $ac_$2 | sed 's/[-.]/_/g'`]
+ eval m4_bmatch([$1], [^\(enable\|disable\)$], [enable], [with])_$ac_$2=$3 ;;dnl
+])
+
+
# _AC_INIT_HELP
# -------------
# Handle the `configure --help' message.
-n, --no-create do not create output files
--srcdir=DIR find the sources in DIR [configure dir or \`..']
-_ACEOF
-
- cat <<_ACEOF
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX
[$ac_default_prefix]
--bindir=DIR user executables [EPREFIX/bin]
--sbindir=DIR system admin executables [EPREFIX/sbin]
--libexecdir=DIR program executables [EPREFIX/libexec]
- --datadir=DIR read-only architecture-independent data [PREFIX/share]
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
- --infodir=DIR info documentation [PREFIX/info]
- --mandir=DIR man documentation [PREFIX/man]
+ --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
+ --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
+ --infodir=DIR info documentation [DATAROOTDIR/info]
+ --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
+ --mandir=DIR man documentation [DATAROOTDIR/man]
+ --docdir=DIR documentation root ]@<:@DATAROOTDIR/doc/m4_ifset([AC_PACKAGE_TARNAME], [AC_PACKAGE_TARNAME], [PACKAGE])@:>@[
+ --htmldir=DIR html documentation [DOCDIR]
+ --dvidir=DIR dvi documentation [DOCDIR]
+ --pdfdir=DIR pdf documentation [DOCDIR]
+ --psdir=DIR ps documentation [DOCDIR]
_ACEOF
cat <<\_ACEOF]
m4_ifset([AC_PACKAGE_BUGREPORT], [
Report bugs to <AC_PACKAGE_BUGREPORT>.])
_ACEOF
+ac_status=$?
fi
if test "$ac_init_help" = "recursive"; then
# If there are subdirs, report their specific --help.
- ac_popdir=`pwd`
for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
- test -d $ac_dir || continue
- _AC_SRCPATHS(["$ac_dir"])
- cd $ac_dir
- # Check for guested configure; otherwise get Cygnus style configure.
- if test -f $ac_srcdir/configure.gnu; then
- echo
- $SHELL $ac_srcdir/configure.gnu --help=recursive
- elif test -f $ac_srcdir/configure; then
- echo
- $SHELL $ac_srcdir/configure --help=recursive
- elif test -f $ac_srcdir/configure.ac ||
- test -f $ac_srcdir/configure.in; then
- echo
- $ac_configure --help
+ test -d "$ac_dir" || continue
+ _AC_SRCDIRS(["$ac_dir"])
+ cd "$ac_dir" || { ac_status=$?; continue; }
+ # Check for guested configure.
+ if test -f "$ac_srcdir/configure.gnu"; then
+ echo &&
+ $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+ elif test -f "$ac_srcdir/configure"; then
+ echo &&
+ $SHELL "$ac_srcdir/configure" --help=recursive
else
AC_MSG_WARN([no configuration information is in $ac_dir])
- fi
- cd "$ac_popdir"
+ fi || ac_status=$?
+ cd "$ac_pwd" || { ac_status=$?; break; }
done
fi
-test -n "$ac_init_help" && exit 0
+test -n "$ac_init_help" && exit $ac_status
m4_divert_pop([HELP_END])dnl
])# _AC_INIT_HELP
m4_define([_AC_INIT_VERSION],
[m4_divert_text([VERSION_BEGIN],
[if $ac_init_version; then
- cat <<\_ACEOF])dnl
-m4_ifset([AC_PACKAGE_STRING],
- [m4_divert_text([VERSION_BEGIN],
- [dnl
+ cat <<\_ACEOF
m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])configure[]dnl
m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
-generated by m4_PACKAGE_STRING])])
+generated by m4_PACKAGE_STRING])
m4_divert_text([VERSION_END],
[_ACEOF
- exit 0
+ exit
fi])dnl
])# _AC_INIT_VERSION
m4_define([_AC_INIT_CONFIG_LOG],
[m4_divert_text([INIT_PREPARE],
[m4_define([AS_MESSAGE_LOG_FD], 5)dnl
-exec AS_MESSAGE_LOG_FD>config.log
-cat >&AS_MESSAGE_LOG_FD <<_ACEOF
+cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
$ $[0] $[@]
_ACEOF
+exec AS_MESSAGE_LOG_FD>>config.log
AS_UNAME >&AS_MESSAGE_LOG_FD
cat >&AS_MESSAGE_LOG_FD <<_ACEOF
# 1. Trap and clean up various tmp files.
# 2. Set up the fd and output files
# 3. Remember the options given to `configure' for `config.status --recheck'.
-# 4. Ensure a correct environment
-# 5. Required macros (cache, default AC_SUBST etc.)
+# 4. Initiates confdefs.h
+# 5. Loads site and cache files
m4_define([_AC_INIT_PREPARE],
[m4_divert_push([INIT_PREPARE])dnl
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
-ac_sep=
ac_must_keep_next=false
for ac_pass in 1 2
do
-q | -quiet | --quiet | --quie | --qui | --qu | --q \
| -silent | --silent | --silen | --sile | --sil)
continue ;;
-dnl If you change this globbing pattern, test it on an old shell --
-dnl it's sensitive. Putting any kind of quote in it causes syntax errors.
- [ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)]
+ *\'*)
ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
esac
case $ac_pass in
-* ) ac_must_keep_next=true ;;
esac
fi
- ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
- # Get rid of the leading space.
- ac_sep=" "
+ ac_configure_args="$ac_configure_args '$ac_arg'"
;;
esac
done
# When interrupted or exit'd, cleanup temporary files, and complete
# config.log. We remove comments because anyway the quotes in there
# would cause problems or look ugly.
-# WARNING: Be sure not to use single quotes in there, as some shells,
-# such as our DU 5.0 friend, will then `close' the trap.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
# Save into config.log some information that might help in debugging.
{
m4_bpatsubsts(m4_defn([_AC_CACHE_DUMP]),
[^ *\(#.*\)?
], [],
- ['], ['"'"'])
+ ['], ['\\''])
echo
AS_BOX([Output variables.])
echo
for ac_var in $ac_subst_vars
do
- eval ac_val=$`echo $ac_var`
- echo "$ac_var='"'"'$ac_val'"'"'"
+ eval ac_val=\$$ac_var
+ case $ac_val in
+ *\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+ esac
+ echo "$ac_var='\''$ac_val'\''"
done | sort
echo
if test -n "$ac_subst_files"; then
- AS_BOX([Output files.])
+ AS_BOX([File substitutions.])
echo
for ac_var in $ac_subst_files
do
- eval ac_val=$`echo $ac_var`
- echo "$ac_var='"'"'$ac_val'"'"'"
+ eval ac_val=\$$ac_var
+ case $ac_val in
+ *\'\''*) ac_val=`echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+ esac
+ echo "$ac_var='\''$ac_val'\''"
done | sort
echo
fi
if test -s confdefs.h; then
AS_BOX([confdefs.h.])
echo
- sed "/^$/d" confdefs.h | sort
+ cat confdefs.h
echo
fi
test "$ac_signal" != 0 &&
echo "$as_me: caught signal $ac_signal"
echo "$as_me: exit $exit_status"
} >&AS_MESSAGE_LOG_FD
- rm -f core *.core &&
- rm -rf conftest* confdefs* conf$[$]* $ac_clean_files &&
+ rm -f core *.core core.conftest.* &&
+ rm -f -r conftest* confdefs* conf$[$]* $ac_clean_files &&
exit $exit_status
- ' 0
+' 0
for ac_signal in 1 2 13 15; do
trap 'ac_signal='$ac_signal'; AS_EXIT([1])' $ac_signal
done
ac_signal=0
# confdefs.h avoids OS command line length limits that DEFS can exceed.
-rm -rf conftest* confdefs.h
-# AIX cpp loses on an empty file, so make sure it contains at least a newline.
-echo >confdefs.h
+rm -f -r conftest* confdefs.h
+dnl AIX cpp loses on an empty file, NextStep 3.3 (patch 3) loses on a file
+dnl containing less than 14 bytes (including the newline).
+dnl But the defines below solve this problem.
# Predefined preprocessor variables.
AC_DEFINE_UNQUOTED([PACKAGE_NAME], ["$PACKAGE_NAME"],
# Let the site file select an alternate cache file if it wants to.
AC_SITE_LOAD
AC_CACHE_LOAD
-_AC_ARG_VAR_VALIDATE
-_AC_ARG_VAR_PRECIOUS([build_alias])dnl
-_AC_ARG_VAR_PRECIOUS([host_alias])dnl
-_AC_ARG_VAR_PRECIOUS([target_alias])dnl
-AC_LANG_PUSH(C)
-
-dnl Substitute for predefined variables.
-AC_SUBST([DEFS])dnl
-AC_SUBST([ECHO_C])dnl
-AC_SUBST([ECHO_N])dnl
-AC_SUBST([ECHO_T])dnl
-AC_SUBST([LIBS])dnl
m4_divert_pop([INIT_PREPARE])dnl
])# _AC_INIT_PREPARE
m4_ifval([$2], [_AC_INIT_PACKAGE($@)])
_AC_INIT_DEFAULTS
_AC_INIT_PARSE_ARGS
+_AC_INIT_DIRCHECK
_AC_INIT_SRCDIR
_AC_INIT_HELP
_AC_INIT_VERSION
_AC_INIT_NOTICE
_AC_INIT_COPYRIGHT
m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl
+dnl
+dnl Substitute for predefined variables.
+AC_SUBST([DEFS])dnl
+AC_SUBST([ECHO_C])dnl
+AC_SUBST([ECHO_N])dnl
+AC_SUBST([ECHO_T])dnl
+AC_SUBST([LIBS])dnl
+_AC_ARG_VAR_PRECIOUS([build_alias])AC_SUBST([build_alias])dnl
+_AC_ARG_VAR_PRECIOUS([host_alias])AC_SUBST([host_alias])dnl
+_AC_ARG_VAR_PRECIOUS([target_alias])AC_SUBST([target_alias])dnl
+dnl
+AC_LANG_PUSH(C)
])
-## ----------------------------- ##
-## Selecting optional features. ##
-## ----------------------------- ##
+## ------------------------------------------------------------- ##
+## Selecting optional features, working with optional software. ##
+## ------------------------------------------------------------- ##
+
+# AC_PRESERVE_HELP_ORDER
+# ----------------------
+# Emit help strings in the order given, rather than grouping all --enable-FOO
+# and all --with-BAR.
+AC_DEFUN([AC_PRESERVE_HELP_ORDER],
+[m4_divert_once([HELP_ENABLE], [[
+Optional Features and Packages:
+ --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
+ --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
+ --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
+m4_define([_m4_divert(HELP_ENABLE)], _m4_divert(HELP_WITH))
+])# AC_PRESERVE_HELP_ORDER
+
+# _AC_ENABLE_IF(OPTION, FEATURE, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# -------------------------------------------------------------------
+# Common code for AC_ARG_ENABLE and AC_ARG_WITH.
+# OPTION is either "enable" or "with".
+#
+m4_define([_AC_ENABLE_IF],
+[# Check whether --$1-$2 was given.
+_AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-.], [__]), [$3], [$4])[]dnl
+])
+m4_define([_AC_ENABLE_IF_ACTION],
+[AS_IF([test "${$1_$2+set}" = set], [$1val=$$1_$2; $3], [$4])dnl
+])
# AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
# ------------------------------------------------------------------------
AC_DEFUN([AC_ARG_ENABLE],
+[AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
+[],
[m4_divert_once([HELP_ENABLE], [[
Optional Features:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
- --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])dnl
+ --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])])dnl
m4_divert_once([HELP_ENABLE], [$2])dnl
-# Check whether --enable-$1 or --disable-$1 was given.
-if test "[${enable_]m4_bpatsubst([$1], -, _)+set}" = set; then
- enableval="[$enable_]m4_bpatsubst([$1], -, _)"
- $3
-m4_ifvaln([$4], [else
- $4])dnl
-fi; dnl
+_AC_ENABLE_IF([enable], [$1], [$3], [$4])dnl
])# AC_ARG_ENABLE
[AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])])
-## ------------------------------ ##
-## Working with optional software ##
-## ------------------------------ ##
-
-
-
# AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE])
# --------------------------------------------------------------------
AC_DEFUN([AC_ARG_WITH],
+[AC_PROVIDE_IFELSE([AC_PRESERVE_HELP_ORDER],
+[],
[m4_divert_once([HELP_WITH], [[
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
- --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])
+ --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]])])
m4_divert_once([HELP_WITH], [$2])dnl
-# Check whether --with-$1 or --without-$1 was given.
-if test "[${with_]m4_bpatsubst([$1], -, _)+set}" = set; then
- withval="[$with_]m4_bpatsubst([$1], -, _)"
- $3
-m4_ifvaln([$4], [else
- $4])dnl
-fi; dnl
+_AC_ENABLE_IF([with], [$1], [$3], [$4])dnl
])# AC_ARG_WITH
AU_DEFUN([AC_WITH],
## ----------------------------------------- ##
+# AC_ARG_VAR(VARNAME, DOCUMENTATION)
+# ----------------------------------
+# Register VARNAME as a precious variable, and document it in
+# `configure --help' (but only once).
+AC_DEFUN([AC_ARG_VAR],
+[m4_divert_once([HELP_VAR], [[
+Some influential environment variables:]])dnl
+m4_divert_once([HELP_VAR_END], [[
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.]])dnl
+m4_expand_once([m4_divert_text([HELP_VAR],
+ [AS_HELP_STRING([$1], [$2], [ ])])],
+ [$0($1)])dnl
+AC_SUBST([$1])dnl
+_AC_ARG_VAR_PRECIOUS([$1])dnl
+])# AC_ARG_VAR
+
+
# _AC_ARG_VAR_PRECIOUS(VARNAME)
# -----------------------------
# Declare VARNAME is precious.
-#
+m4_define([_AC_ARG_VAR_PRECIOUS],
+[m4_append_uniq([_AC_PRECIOUS_VARS], [$1], [
+])dnl
+])
+
+
+# _AC_ARG_VAR_STORE
+# -----------------
# We try to diagnose when precious variables have changed. To do this,
# make two early snapshots (after the option processing to take
# explicit variables into account) of those variables: one (ac_env_)
#
# In subsequent runs, after having loaded the cache, compare
# ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE.
-m4_define([_AC_ARG_VAR_PRECIOUS],
-[AC_SUBST([$1])dnl
-m4_divert_once([PARSE_ARGS],
-[ac_env_$1_set=${$1+set}
-ac_env_$1_value=$$1
-ac_cv_env_$1_set=${$1+set}
-ac_cv_env_$1_value=$$1])dnl
+m4_define([_AC_ARG_VAR_STORE],
+[m4_divert_text([PARSE_ARGS],
+[for ac_var in $ac_precious_vars; do
+ eval ac_env_${ac_var}_set=\${${ac_var}+set}
+ eval ac_env_${ac_var}_value=\$${ac_var}
+ eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+ eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done])dnl
])
# _AC_ARG_VAR_VALIDATE
# --------------------
# The precious variables are saved twice at the beginning of
-# configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_SET' and
-# `ac_env_PRECIOUS_VALUE' on the one hand and `ac_cv_env_PRECIOUS_SET'
-# and `ac_cv_env_PRECIOUS_VALUE' on the other hand.
+# configure. E.g., PRECIOUS is saved as `ac_env_PRECIOUS_set' and
+# `ac_env_PRECIOUS_value' on the one hand and `ac_cv_env_PRECIOUS_set'
+# and `ac_cv_env_PRECIOUS_value' on the other hand.
#
# Now the cache has just been loaded, so `ac_cv_env_' represents the
# content of the cached values, while `ac_env_' represents that of the
# So we check that `ac_env_' and `ac_cv_env_' are consistent. If
# they aren't, die.
m4_define([_AC_ARG_VAR_VALIDATE],
+[m4_divert_text([INIT_PREPARE],
[# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
-for ac_var in `(set) 2>&1 |
- sed -n 's/^ac_env_\([[a-zA-Z_0-9]]*\)_set=.*/\1/p'`; do
+for ac_var in $ac_precious_vars; do
eval ac_old_set=\$ac_cv_env_${ac_var}_set
eval ac_new_set=\$ac_env_${ac_var}_set
- eval ac_old_val="\$ac_cv_env_${ac_var}_value"
- eval ac_new_val="\$ac_env_${ac_var}_value"
+ eval ac_old_val=\$ac_cv_env_${ac_var}_value
+ eval ac_new_val=\$ac_env_${ac_var}_value
case $ac_old_set,$ac_new_set in
set,)
AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
# Pass precious variables to config.status.
if test "$ac_new_set" = set; then
case $ac_new_val in
-dnl If you change this globbing pattern, test it on an old shell --
-dnl it's sensitive. Putting any kind of quote in it causes syntax errors.
-[ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)]
- ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+ *\'*) ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
*) ac_arg=$ac_var=$ac_new_val ;;
esac
case " $ac_configure_args " in
if $ac_cache_corrupted; then
AS_MESSAGE([error: changes in the environment can compromise the build], 2)
AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
-fi
+fi])dnl
])# _AC_ARG_VAR_VALIDATE
-# AC_ARG_VAR(VARNAME, DOCUMENTATION)
-# ----------------------------------
-# Register VARNAME as a precious variable, and document it in
-# `configure --help' (but only once).
-AC_DEFUN([AC_ARG_VAR],
-[m4_divert_once([HELP_VAR], [[
-Some influential environment variables:]])dnl
-m4_divert_once([HELP_VAR_END], [[
-Use these variables to override the choices made by `configure' or to help
-it to find libraries and programs with nonstandard names/locations.]])dnl
-m4_expand_once([m4_divert_once([HELP_VAR],
- [AS_HELP_STRING([$1], [$2], [ ])])],
- [$0($1)])dnl
-_AC_ARG_VAR_PRECIOUS([$1])dnl
-])# AC_ARG_VAR
-
-
--program-transform-name=PROGRAM run sed PROGRAM on installed program names
m4_divert_pop([HELP_BEGIN])dnl
test "$program_prefix" != NONE &&
- program_transform_name="s,^,$program_prefix,;$program_transform_name"
+ program_transform_name="s&^&$program_prefix&;$program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
- program_transform_name="s,\$,$program_suffix,;$program_transform_name"
+ program_transform_name="s&\$&$program_suffix&;$program_transform_name"
# Double any \ or $. echo might interpret backslashes.
# By default was `s,x,x', remove it if useless.
cat <<\_ACEOF >conftest.sed
[s/[\\$]/&&/g;s/;s,x,x,$//]
_ACEOF
program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
-rm conftest.sed
+rm -f conftest.sed
])# AC_ARG_PROGRAM
# in directory DIR. These are auxiliary files used in configuration.
# DIR can be either absolute or relative to $srcdir.
AC_DEFUN([AC_CONFIG_AUX_DIR],
-[AC_CONFIG_AUX_DIRS($1 $srcdir/$1)])
+[AC_CONFIG_AUX_DIRS($1 "$srcdir"/$1)])
# AC_CONFIG_AUX_DIR_DEFAULT
# The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'.
# There's no need to call this macro explicitly; just AC_REQUIRE it.
AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT],
-[AC_CONFIG_AUX_DIRS($srcdir $srcdir/.. $srcdir/../..)])
+[AC_CONFIG_AUX_DIRS("$srcdir" "$srcdir/.." "$srcdir/../..")])
# AC_CONFIG_AUX_DIRS(DIR ...)
AC_DEFUN([AC_CONFIG_AUX_DIRS],
[ac_aux_dir=
for ac_dir in $1; do
- if test -f $ac_dir/install-sh; then
+ if test -f "$ac_dir/install-sh"; then
ac_aux_dir=$ac_dir
ac_install_sh="$ac_aux_dir/install-sh -c"
break
- elif test -f $ac_dir/install.sh; then
+ elif test -f "$ac_dir/install.sh"; then
ac_aux_dir=$ac_dir
ac_install_sh="$ac_aux_dir/install.sh -c"
break
- elif test -f $ac_dir/shtool; then
+ elif test -f "$ac_dir/shtool"; then
ac_aux_dir=$ac_dir
ac_install_sh="$ac_aux_dir/shtool install -c"
break
if test -z "$ac_aux_dir"; then
AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
fi
-ac_config_guess="$SHELL $ac_aux_dir/config.guess"
-ac_config_sub="$SHELL $ac_aux_dir/config.sub"
-ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
+
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
])# AC_CONFIG_AUX_DIRS
# AC_CONFIG_MACRO_DIR(DIR)
# ------------------------
# Declare directory containing additional macros for aclocal.
-# DIR can be either absolute or relative to $srcdir.
-AC_DEFUN([AC_CONFIG_MACRO_DIR],
-[case $1 in
- [[\\/]]* | ?:[[\\/]]* ) ac_macro_dir=$1 ;;
- *) ac_macro_dir=$srcdir/$1 ;;
-esac
-if test -d "$ac_macro_dir"; then :
-else
- AC_MSG_ERROR([cannot find macro directory `$1'])
-fi
-])# AC_CONFIG_MACRO_DIR
+AC_DEFUN([AC_CONFIG_MACRO_DIR], [])
+## --------------------- ##
+## Requiring aux files. ##
+## --------------------- ##
+
+# AC_REQUIRE_AUX_FILE(FILE)
+# -------------------------
+# This macro does nothing, it's a hook to be read with `autoconf --trace'.
+# It announces FILE is required in the auxdir.
+m4_define([AC_REQUIRE_AUX_FILE],
+[AS_LITERAL_IF([$1], [],
+ [AC_FATAL([$0: requires a literal argument])])])
+
+
## ----------------------------------- ##
## Getting the canonical system type. ##
# --------------------------
# Generate the variables THING, THING_{alias cpu vendor os}.
m4_define([_AC_CANONICAL_SPLIT],
-[AC_SUBST([$1], [$ac_cv_$1])dnl
-dnl FIXME: AC_SUBST([$1_alias], [$ac_cv_$1_alias])dnl
-AC_SUBST([$1_cpu],
- [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\1/'`])dnl
-AC_SUBST([$1_vendor],
- [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\2/'`])dnl
-AC_SUBST([$1_os],
- [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\3/'`])dnl
+[case $ac_cv_$1 in
+*-*-*) ;;
+*) AC_MSG_ERROR([invalid value of canonical $1]);;
+esac
+AC_SUBST([$1], [$ac_cv_$1])dnl
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_$1
+shift
+AC_SUBST([$1_cpu], [$[1]])dnl
+AC_SUBST([$1_vendor], [$[2]])dnl
+shift; shift
+[# Remember, the first character of IFS is used to create $]*,
+# except with old shells:
+$1_os=$[*]
+IFS=$ac_save_IFS
+case $$1_os in *\ *) $1_os=`echo "$$1_os" | sed 's/ /-/g'`;; esac
+AC_SUBST([$1_os])dnl
])# _AC_CANONICAL_SPLIT
# AC_CANONICAL_BUILD
# ------------------
-AC_DEFUN_ONCE([AC_CANONICAL_BUILD],
+AC_DEFUN([AC_CANONICAL_BUILD],
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-m4_divert_text([HELP_CANON],
+AC_REQUIRE_AUX_FILE([config.sub])dnl
+AC_REQUIRE_AUX_FILE([config.guess])dnl
+m4_divert_once([HELP_CANON],
[[
System types:
--build=BUILD configure for building on BUILD [guessed]]])dnl
# Make sure we can run config.sub.
-$ac_config_sub sun4 >/dev/null 2>&1 ||
- AC_MSG_ERROR([cannot run $ac_config_sub])
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+ AC_MSG_ERROR([cannot run $SHELL $ac_aux_dir/config.sub])
AC_CACHE_CHECK([build system type], [ac_cv_build],
-[ac_cv_build_alias=$build_alias
-test -z "$ac_cv_build_alias" &&
- ac_cv_build_alias=`$ac_config_guess`
-test -z "$ac_cv_build_alias" &&
+[ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+ ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
AC_MSG_ERROR([cannot guess build type; you must specify one])
-ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
- AC_MSG_ERROR([$ac_config_sub $ac_cv_build_alias failed])
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+ AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $ac_build_alias failed])
])
_AC_CANONICAL_SPLIT(build)
])# AC_CANONICAL_BUILD
# AC_CANONICAL_HOST
# -----------------
-AC_DEFUN_ONCE([AC_CANONICAL_HOST],
+AC_DEFUN([AC_CANONICAL_HOST],
[AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-m4_divert_text([HELP_CANON],
+m4_divert_once([HELP_CANON],
[[ --host=HOST cross-compile to build programs to run on HOST [BUILD]]])dnl
AC_CACHE_CHECK([host system type], [ac_cv_host],
-[ac_cv_host_alias=$host_alias
-test -z "$ac_cv_host_alias" &&
- ac_cv_host_alias=$ac_cv_build_alias
-ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
- AC_MSG_ERROR([$ac_config_sub $ac_cv_host_alias failed])
+[if test "x$host_alias" = x; then
+ ac_cv_host=$ac_cv_build
+else
+ ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+ AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $host_alias failed])
+fi
])
_AC_CANONICAL_SPLIT([host])
])# AC_CANONICAL_HOST
# AC_CANONICAL_TARGET
# -------------------
-AC_DEFUN_ONCE([AC_CANONICAL_TARGET],
+AC_DEFUN([AC_CANONICAL_TARGET],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl
-m4_divert_text([HELP_CANON],
+m4_divert_once([HELP_CANON],
[[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl
AC_CACHE_CHECK([target system type], [ac_cv_target],
-[dnl Set target_alias.
-ac_cv_target_alias=$target_alias
-test "x$ac_cv_target_alias" = "x" &&
- ac_cv_target_alias=$ac_cv_host_alias
-ac_cv_target=`$ac_config_sub $ac_cv_target_alias` ||
- AC_MSG_ERROR([$ac_config_sub $ac_cv_target_alias failed])
+[if test "x$target_alias" = x; then
+ ac_cv_target=$ac_cv_host
+else
+ ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
+ AC_MSG_ERROR([$SHELL $ac_aux_dir/config.sub $target_alias failed])
+fi
])
_AC_CANONICAL_SPLIT([target])
# Look for site or system specific initialization scripts.
m4_define([AC_SITE_LOAD],
[# Prefer explicitly selected file to automatically selected ones.
-if test -z "$CONFIG_SITE"; then
- if test "x$prefix" != xNONE; then
- CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
- else
- CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
- fi
+if test -n "$CONFIG_SITE"; then
+ set x "$CONFIG_SITE"
+elif test "x$prefix" != xNONE; then
+ set x "$prefix/share/config.site" "$prefix/etc/config.site"
+else
+ set x "$ac_default_prefix/share/config.site" \
+ "$ac_default_prefix/etc/config.site"
fi
-for ac_site_file in $CONFIG_SITE; do
+shift
+for ac_site_file
+do
if test -r "$ac_site_file"; then
AC_MSG_NOTICE([loading site script $ac_site_file])
sed 's/^/| /' "$ac_site_file" >&AS_MESSAGE_LOG_FD
if test -f "$cache_file"; then
AC_MSG_NOTICE([loading cache $cache_file])
case $cache_file in
- [[\\/]]* | ?:[[\\/]]* ) . $cache_file;;
- *) . ./$cache_file;;
+ [[\\/]]* | ?:[[\\/]]* ) . "$cache_file";;
+ *) . "./$cache_file";;
esac
fi
else
m4_define([_AC_CACHE_DUMP],
[# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
+# So, we kill variables containing newlines.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
-{
+(
+ for ac_var in `(set) 2>&1 | sed -n ['s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p']`; do
+ eval ac_val=\$$ac_var
+ case $ac_val in #(
+ *${as_nl}*)
+ case $ac_var in #(
+ *_cv_*) AC_MSG_WARN([Cache variable $ac_var contains a newline.]) ;;
+ esac
+ case $ac_var in #(
+ _ | IFS | as_nl) ;; #(
+ *) $as_unset $ac_var ;;
+ esac ;;
+ esac
+ done
+
(set) 2>&1 |
- case `(ac_space=' '; set | grep ac_space) 2>&1` in
- *ac_space=\ *)
+ case $as_nl`(ac_space=' '; set) 2>&1` in #(
+ *${as_nl}ac_space=\ *)
# `set' does not quote correctly, so add quotes (double-quote
# substitution turns \\\\ into \\, and sed turns \\ into \).
sed -n \
["s/'/'\\\\''/g;
s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"]
- ;;
+ ;; #(
*)
# `set' quotes correctly as required by POSIX, so do not add quotes.
- sed -n \
- ["s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"]
+ sed -n ["/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"]
;;
- esac;
-}dnl
+ esac |
+ sort
+)dnl
])# _AC_CACHE_DUMP
_AC_CACHE_DUMP() |
sed ['
+ /^ac_cv_env_/b end
t clear
- : clear
+ :clear
s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
t end
- /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
- : end'] >>confcache
-if diff $cache_file confcache >/dev/null 2>&1; then :; else
- if test -w $cache_file; then
- test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+ s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+ :end'] >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+ if test -w "$cache_file"; then
+ test "x$cache_file" != "x/dev/null" &&
+ AC_MSG_NOTICE([updating cache $cache_file])
cat confcache >$cache_file
else
- echo "not updating unwritable cache $cache_file"
+ AC_MSG_NOTICE([not updating unwritable cache $cache_file])
fi
fi
rm -f confcache[]dnl
# Should be dnl'ed. Try to catch common mistakes.
m4_defun([AC_CACHE_VAL],
[m4_bmatch([$2], [AC_DEFINE],
- [AC_DIAGNOSE(syntax,
+ [AC_DIAGNOSE([syntax],
[$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl
[where no actions should be taken])])dnl
AS_VAR_SET_IF([$1],
m4_defun([AC_CACHE_CHECK],
[AC_MSG_CHECKING([$1])
AC_CACHE_VAL([$2], [$3])dnl
-AC_MSG_RESULT_UNQUOTED([AS_VAR_GET([$2])])])
+AS_LITERAL_IF([$2],
+ [AC_MSG_RESULT([$$2])],
+ [ac_res=AS_VAR_GET([$2])
+ AC_MSG_RESULT([$ac_res])])dnl
+])
+
+# _AC_CACHE_CHECK_INT(MESSAGE, CACHE-ID, EXPRESSION,
+# [PROLOGUE = DEFAULT-INCLUDES], [IF-FAILS])
+# -------------------------------------------------------------
+AC_DEFUN([_AC_CACHE_CHECK_INT],
+[AC_CACHE_CHECK([$1], [$2],
+ [AC_COMPUTE_INT([$2], [$3], [$4], [$5])])
+])# _AC_CACHE_CHECK_INT
# AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL)
# -------------------------------------------
-# This macro is useless, it is used only with --trace to collect the
-# list of *literals* CPP values passed to AC_DEFINE/AC_DEFINE_UNQUOTED.
-m4_define([AC_DEFINE_TRACE_LITERAL])
+# Used by --trace to collect the list of AC_DEFINEd macros.
+m4_define([AC_DEFINE_TRACE_LITERAL],
+[m4_pattern_allow([^$1$])])
# AC_DEFINE_TRACE(CPP-SYMBOL)
# Set VARIABLE to VALUE, verbatim, or 1. Remember the value
# and if VARIABLE is affected the same VALUE, do nothing, else
# die. The third argument is used by autoheader.
-m4_define([AC_DEFINE],
-[AC_DEFINE_TRACE([$1])dnl
-m4_ifval([$3], [AH_TEMPLATE([$1], [$3])])dnl
-cat >>confdefs.h <<\_ACEOF
-[@%:@define] $1 m4_if($#, 2, [$2], $#, 3, [$2], 1)
-_ACEOF
-])
+m4_define([AC_DEFINE], [_AC_DEFINE_Q([\], $@)])
# AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION])
# ----------------------------------------------------
# Similar, but perform shell substitutions $ ` \ once on VALUE.
-m4_define([AC_DEFINE_UNQUOTED],
-[AC_DEFINE_TRACE([$1])dnl
-m4_ifval([$3], [AH_TEMPLATE([$1], [$3])])dnl
-cat >>confdefs.h <<_ACEOF
-[@%:@define] $1 m4_if($#, 2, [$2], $#, 3, [$2], 1)
+m4_define([AC_DEFINE_UNQUOTED], [_AC_DEFINE_Q([], $@)])
+
+
+# _AC_DEFINE_Q(QUOTE, VARIABLE, [VALUE], [DESCRIPTION])
+# -----------------------------------------------------
+m4_define([_AC_DEFINE_Q],
+[AC_DEFINE_TRACE([$2])dnl
+m4_ifval([$4], [AH_TEMPLATE(m4_bpatsubst([[$2]], [(.*)]), [$4])])dnl
+cat >>confdefs.h <<$1_ACEOF
+[@%:@define] $2 m4_if($#, 2, 1, [$3])
_ACEOF
])
## -------------------------- ##
+# AC_SUBST_TRACE(VARIABLE)
+# ------------------------
+# This macro is used with --trace to collect the list of substituted variables.
+m4_define([AC_SUBST_TRACE])
+
+
# AC_SUBST(VARIABLE, [VALUE])
# ---------------------------
# Create an output variable from a shell VARIABLE. If VALUE is given
# assign it to VARIABLE. Use `""' is you want to set VARIABLE to an
# empty value, not an empty second argument.
#
-# Beware that if you change this macro, you also have to change the
-# sed script at the top of _AC_OUTPUT_FILES.
m4_define([AC_SUBST],
-[m4_ifvaln([$2], [$1=$2])[]dnl
-m4_append_uniq([_AC_SUBST_VARS], [$1], [ ])dnl
+[AC_SUBST_TRACE([$1])dnl
+m4_pattern_allow([^$1$])dnl
+m4_ifvaln([$2], [$1=$2])[]dnl
+m4_append_uniq([_AC_SUBST_VARS], [$1], [
+])dnl
])# AC_SUBST
# -----------------------
# Read the comments of the preceding macro.
m4_define([AC_SUBST_FILE],
-[m4_append_uniq([_AC_SUBST_FILES], [$1], [ ])])
+[m4_pattern_allow([^$1$])dnl
+m4_append_uniq([_AC_SUBST_FILES], [$1], [
+])])
# AC_MSG_CHECKING(FEATURE)
# ------------------------
m4_define([AC_MSG_CHECKING],
-[_AS_ECHO([$as_me:$LINENO: checking $1], AS_MESSAGE_LOG_FD)
-_AS_ECHO_N([checking $1... ])[]dnl
+[{ _AS_ECHO_LOG([checking $1])
+_AS_ECHO_N([checking $1... ]); }dnl
])
# AC_MSG_RESULT(RESULT)
# ---------------------
m4_define([AC_MSG_RESULT],
-[_AS_ECHO([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
-_AS_ECHO([${ECHO_T}$1])[]dnl
-])
-
-
-# AC_MSG_RESULT_UNQUOTED(RESULT)
-# ------------------------------
-# Likewise, but perform $ ` \ shell substitutions.
-m4_define([AC_MSG_RESULT_UNQUOTED],
-[_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
-_AS_ECHO_UNQUOTED([${ECHO_T}$1])[]dnl
+[{ _AS_ECHO_LOG([result: $1])
+_AS_ECHO([${ECHO_T}$1]); }dnl
])
[AS_MESSAGE([checking $1...])])
+# AU::AC_MSG_RESULT_UNQUOTED(RESULT)
+# ----------------------------------
+# No escaping, so it performed also backtick substitution.
+AU_DEFUN([AC_MSG_RESULT_UNQUOTED],
+[_AS_ECHO_UNQUOTED([$as_me:$LINENO: result: $1], AS_MESSAGE_LOG_FD)
+_AS_ECHO_UNQUOTED([${ECHO_T}$1])[]dnl
+])
+
+
# AU::AC_VERBOSE(STRING)
# ----------------------
AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT])
[{ ($2) >&AS_MESSAGE_LOG_FD
($1) 2>&AS_MESSAGE_LOG_FD
ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ _AS_ECHO_LOG([\$? = $ac_status])
(exit $ac_status); }])
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ _AS_ECHO_LOG([\$? = $ac_status])
(exit $ac_status); }])
+# _AC_DO_ECHO(COMMAND)
+# --------------------
+# Echo COMMAND. This is designed to be used just before evaluating COMMAND.
+AC_DEFUN([_AC_DO_ECHO],
+[m4_if([$1], [$ac_try], [], [ac_try="$1"
+])dnl
+dnl If the string contains '"', '`', or '\', then just echo it rather
+dnl than expanding it. This is a hack, but it is safer, while also
+dnl typically expanding simple substrings like '$CC', which is what we want.
+dnl
+dnl The rest of this macro body is quoted, to work around misuses like
+dnl `AC_CHECK_FUNC(sigblock, , AC_CHECK_LIB(bsd, sigblock))',
+dnl which underquotes the 3rd arg and would misbehave if we didn't quote here.
+dnl The "(($ac_try" instead of $ac_try avoids problems with even-worse
+dnl underquoting misuses, such as
+dnl `AC_CHECK_FUNC(foo, , AC_CHECK_LIB(a, foo, , AC_CHECK_LIB(b, foo)))'.
+dnl We normally wouldn't bother with this kind of workaround for invalid code
+dnl but this change was put in just before Autoconf 2.60 and we wanted to
+dnl minimize the integration hassle.
+[case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\""]])
+
+# _AC_DO(COMMAND)
+# ---------------
+# Eval COMMAND, save the exit status in ac_status, and log it.
+# For internal use only.
+AC_DEFUN([_AC_DO],
+[_AC_RUN_LOG([eval "$1"],
+ [_AC_DO_ECHO([$1])])])
+
+
+# _AC_DO_STDERR(COMMAND)
+# ----------------------
+# Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
+AC_DEFUN([_AC_DO_STDERR],
+[_AC_RUN_LOG_STDERR([eval "$1"],
+ [_AC_DO_ECHO([$1])])])
+
+
+# _AC_DO_VAR(VARIABLE)
+# --------------------
+# Evaluate "$VARIABLE", which should be a valid shell command.
+# The purpose of this macro is to write "configure:123: command line"
+# into config.log for every test run.
+AC_DEFUN([_AC_DO_VAR],
+[_AC_DO([$$1])])
+
+
+# _AC_DO_TOKENS(COMMAND)
+# ----------------------
+# Like _AC_DO_VAR, but execute COMMAND instead, where COMMAND is a series of
+# tokens of the shell command language.
+AC_DEFUN([_AC_DO_TOKENS],
+[{ ac_try='$1'
+ _AC_DO([$ac_try]); }])
+
# _AC_EVAL(COMMAND)
# -----------------
# Eval COMMAND, save the exit status in ac_status, and log it.
+# Unlike _AC_DO, this macro mishandles quoted arguments in some cases.
+# It is present only for backward compatibility with previous Autoconf versions.
AC_DEFUN([_AC_EVAL],
[_AC_RUN_LOG([eval $1],
[eval echo "$as_me:$LINENO: \"$1\""])])
# _AC_EVAL_STDERR(COMMAND)
# ------------------------
-# Same as _AC_RUN_LOG_STDERR, but evals (instead of the running) the
-# COMMAND.
+# Like _AC_RUN_LOG_STDERR, but eval (instead of running) COMMAND.
+# Unlike _AC_DO_STDERR, this macro mishandles quoted arguments in some cases.
+# It is present only for backward compatibility with previous Autoconf versions.
AC_DEFUN([_AC_EVAL_STDERR],
[_AC_RUN_LOG_STDERR([eval $1],
[eval echo "$as_me:$LINENO: \"$1\""])])
# AC_TRY_EVAL(VARIABLE)
# ---------------------
-# The purpose of this macro is to "configure:123: command line"
-# written into config.log for every test run.
+# Evaluate $VARIABLE, which should be a valid shell command.
+# The purpose of this macro is to write "configure:123: command line"
+# into config.log for every test run.
+#
+# The AC_TRY_EVAL and AC_TRY_COMMAND macros are dangerous and
+# undocumented, and should not be used.
+# They may be removed or their API changed in a future release.
+# Autoconf itself no longer uses these two macros; they are present
+# only for backward compatibility with previous versions of Autoconf.
+# Not every shell command will work due to problems with eval
+# and quoting, and the rules for exactly what does work are tricky.
+# Worse, due to double-expansion during evaluation, arbitrary unintended
+# shell commands could be executed in some situations.
AC_DEFUN([AC_TRY_EVAL],
[_AC_EVAL([$$1])])
# AC_TRY_COMMAND(COMMAND)
# -----------------------
+# Like AC_TRY_EVAL, but execute COMMAND instead, where COMMAND is a series of
+# tokens of the shell command language.
+# This macro should not be used; see the comments under AC_TRY_EVAL for why.
AC_DEFUN([AC_TRY_COMMAND],
[{ ac_try='$1'
_AC_EVAL([$ac_try]); }])
# Try to preprocess PROGRAM.
#
# This macro can be used during the selection of a preprocessor.
-# Run cpp and set ac_cpp_err to "yes" for an error, to
-# "$ac_(c,cxx)_preproc_warn_flag" if there are warnings or to "" if
-# neither warnings nor errors have been detected. eval is necessary
-# to expand ac_cpp.
+# eval is necessary to expand ac_cpp.
AC_DEFUN([_AC_PREPROC_IFELSE],
[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
-if _AC_EVAL_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_[]_AC_LANG_ABBREV[]_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- m4_default([$2], :)
-else
- _AC_MSG_LOG_CONFTEST
- $3
-fi
+AS_IF([_AC_DO_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null && {
+ test -z "$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
+ test ! -s conftest.err
+ }],
+ [$2],
+ [_AC_MSG_LOG_CONFTEST
+ $3])
rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
])# _AC_PREPROC_IFELSE
[AC_LANG_PREPROC_REQUIRE()dnl
AC_REQUIRE([AC_PROG_EGREP])dnl
AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
-dnl eval is necessary to expand ac_cpp.
+AS_IF([dnl eval is necessary to expand ac_cpp.
dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
-if (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
+(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
dnl Quote $1 to prevent m4 from eating character classes
- $EGREP "[$1]" >/dev/null 2>&1; then
- m4_default([$3], :)
-m4_ifvaln([$4], [else
- $4])dnl
-fi
+ $EGREP "[$1]" >/dev/null 2>&1],
+ [$3],
+ [$4])dnl
rm -f conftest*
])# AC_EGREP_CPP
## ------------------ ##
-# _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# ---------------------------------------------------------------------
+# _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ----------------------------------------------------------------
# Try to compile PROGRAM.
# This macro can be used during the selection of a compiler.
m4_define([_AC_COMPILE_IFELSE],
[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
rm -f conftest.$ac_objext
-AS_IF([_AC_EVAL_STDERR($ac_compile) &&
- AC_TRY_COMMAND([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err]) &&
- AC_TRY_COMMAND([test -s conftest.$ac_objext])],
+AS_IF([_AC_DO_STDERR($ac_compile) && {
+ test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext],
[$2],
[_AC_MSG_LOG_CONFTEST
-m4_ifvaln([$3],[$3])dnl])dnl
-rm -f conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
+ $3])
+rm -f core conftest.err conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl
])# _AC_COMPILE_IFELSE
-# AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# --------------------------------------------------------------------
+# AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ---------------------------------------------------------------
# Try to compile PROGRAM. Requires that the compiler for the current
# language was checked for, hence do not use this macro in macros looking
# for a compiler.
# AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# --------------------------------------------------------
+# [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ---------------------------------------------------
AU_DEFUN([AC_TRY_COMPILE],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
## --------------------- ##
-# _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# ------------------------------------------------------------------
+# _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# -------------------------------------------------------------
# Try to link PROGRAM.
# This macro can be used during the selection of a compiler.
m4_define([_AC_LINK_IFELSE],
[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
rm -f conftest.$ac_objext conftest$ac_exeext
-AS_IF([_AC_EVAL_STDERR($ac_link) &&
- AC_TRY_COMMAND([test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || test ! -s conftest.err]) &&
- AC_TRY_COMMAND([test -s conftest$ac_exeext])],
+AS_IF([_AC_DO_STDERR($ac_link) && {
+ test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext &&
+ AS_TEST_X([conftest$ac_exeext])],
[$2],
[_AC_MSG_LOG_CONFTEST
-m4_ifvaln([$3], [$3])dnl])[]dnl
-rm -f conftest.err conftest.$ac_objext \
+ $3])
+dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
+dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
+dnl as it would interfere with the next link command.
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
])# _AC_LINK_IFELSE
-# AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -----------------------------------------------------------------
+# AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ------------------------------------------------------------
# Try to link PROGRAM. Requires that the compiler for the current
# language was checked for, hence do not use this macro in macros looking
# for a compiler.
# AC_TRY_LINK(INCLUDES, FUNCTION-BODY,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -----------------------------------------------------
+# [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ------------------------------------------------
# Contrarily to AC_LINK_IFELSE, this macro double quote its first two args.
AU_DEFUN([AC_TRY_LINK],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])])
# AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY,
-# ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND])
-# --------------------------------------------------------
+# ACTION-IF-TRUE, [ACTION-IF-FALSE])
+# ---------------------------------------------------
AU_DEFUN([AC_COMPILE_CHECK],
-[m4_ifvaln([$1], [AC_CHECKING([for $1])])dnl
-AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])
-])
+[m4_ifvaln([$1], [AC_MSG_CHECKING([for $1])])dnl
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5])])
-## -------------------------------- ##
-## Checking for run-time features. ##
-## -------------------------------- ##
+## ------------------------------- ##
+## Checking for runtime features. ##
+## ------------------------------- ##
# _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
m4_define([_AC_RUN_IFELSE],
[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
rm -f conftest$ac_exeext
-AS_IF([AC_TRY_EVAL(ac_link) && AC_TRY_COMMAND(./conftest$ac_exeext)],
+AS_IF([_AC_DO_VAR(ac_link) && _AC_DO_TOKENS(./conftest$ac_exeext)],
[$2],
[echo "$as_me: program exited with status $ac_status" >&AS_MESSAGE_LOG_FD
_AC_MSG_LOG_CONFTEST
m4_ifvaln([$3],
[( exit $ac_status )
$3])dnl])[]dnl
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext m4_ifval([$1],
[conftest.$ac_ext])[]dnl
])# _AC_RUN_IFELSE
m4_ifval([$4], [],
[AC_DIAGNOSE([cross],
[$0 called without default to allow cross compiling])])dnl
-if test "$cross_compiling" = yes; then
- m4_default([$4],
- [AC_MSG_ERROR([internal error: not reached in cross-compile])])
-else
- _AC_RUN_IFELSE($@)
-fi])
+AS_IF([test "$cross_compiling" = yes],
+ [m4_default([$4],
+ [AC_MSG_FAILURE([cannot run test program while cross compiling])])],
+ [_AC_RUN_IFELSE($@)])
+])
# AC_TRY_RUN(PROGRAM,
[AC_DIAGNOSE([cross],
[cannot check for file existence when cross compiling])dnl
AS_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl
-AC_CACHE_CHECK([for $1], ac_File,
+AC_CACHE_CHECK([for $1], [ac_File],
[test "$cross_compiling" = yes &&
AC_MSG_ERROR([cannot check for file existence when cross compiling])
if test -r "$1"; then
- AS_VAR_SET(ac_File, yes)
+ AS_VAR_SET([ac_File], [yes])
else
- AS_VAR_SET(ac_File, no)
+ AS_VAR_SET([ac_File], [no])
fi])
-AS_IF([test AS_VAR_GET(ac_File) = yes], [$2], [$3])[]dnl
+AS_IF([test AS_VAR_GET([ac_File]) = yes], [$2], [$3])[]dnl
AS_VAR_POPDEF([ac_File])dnl
])# AC_CHECK_FILE
# AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# -----------------------------------------------------------------
AC_DEFUN([AC_CHECK_FILES],
-[AC_FOREACH([AC_FILE_NAME], [$1],
+[m4_foreach_w([AC_FILE_NAME], [$1],
[AC_CHECK_FILE(AC_FILE_NAME,
[AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]AC_FILE_NAME), 1,
[Define to 1 if you have the
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
# [INCLUDES = DEFAULT-INCLUDES])
# -------------------------------------------------------
-# Check if SYMBOL (a variable or a function) is declared.
+# Check whether SYMBOL (a function, variable, or constant) is declared.
AC_DEFUN([AC_CHECK_DECL],
[AS_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl
-AC_CACHE_CHECK([whether $1 is declared], ac_Symbol,
+AC_CACHE_CHECK([whether $1 is declared], [ac_Symbol],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
[#ifndef $1
- char *p = (char *) $1;
+ (void) $1;
#endif
])],
- [AS_VAR_SET(ac_Symbol, yes)],
- [AS_VAR_SET(ac_Symbol, no)])])
-AS_IF([test AS_VAR_GET(ac_Symbol) = yes], [$2], [$3])[]dnl
+ [AS_VAR_SET([ac_Symbol], [yes])],
+ [AS_VAR_SET([ac_Symbol], [no])])])
+AS_IF([test AS_VAR_GET([ac_Symbol]) = yes], [$2], [$3])[]dnl
AS_VAR_POPDEF([ac_Symbol])dnl
])# AC_CHECK_DECL
])# AC_CHECK_DECLS
+# AC_CHECK_DECLS_ONCE(SYMBOLS)
+# ----------------------------
+# Like AC_CHECK_DECLS(SYMBOLS), but do it at most once.
+AC_DEFUN([AC_CHECK_DECLS_ONCE],
+[
+ m4_foreach([AC_Symbol], [$1],
+ [AC_DEFUN([_AC_Check_Decl_]m4_defn([AC_Symbol]),
+ [AC_CHECK_DECLS(m4_defn([AC_Symbol]))])
+ AC_REQUIRE([_AC_Check_Decl_]m4_defn([AC_Symbol]))])
+])
+
+
## ---------------------------------- ##
## Replacement of library functions. ##
# -----------------------------
# Announce LIBOBJ replacement files are in $top_srcdir/DIRNAME.
AC_DEFUN_ONCE([AC_CONFIG_LIBOBJ_DIR],
-[m4_bmatch([$1], [^]m4_defn([m4_cr_symbols2]),
- [AC_WARNING([invalid replacement directory: $1])])dnl
-m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])[]dnl
-])
+[m4_divert_text([DEFAULTS], [ac_config_libobj_dir=$1])])
-# AC_LIBSOURCE(FILENAME)
-# ----------------------
-# Announce we might need the file `FILENAME'.
+# AC_LIBSOURCE(FILE-NAME)
+# -----------------------
+# Announce we might need the file `FILE-NAME'.
m4_define([AC_LIBSOURCE], [])
-# AC_LIBSOURCES([FILENAME1, ...])
+# AC_LIBSOURCES([FILE-NAME1, ...])
# -------------------------------
# Announce we might need these files.
m4_define([AC_LIBSOURCES],
-[m4_foreach([_AC_FILENAME], [$1],
- [AC_LIBSOURCE(_AC_FILENAME)])])
+[m4_foreach([_AC_FILE_NAME], [$1],
+ [AC_LIBSOURCE(_AC_FILE_NAME)])])
-# _AC_LIBOBJ(FILENAME-NOEXT, ACTION-IF-INDIR)
-# -------------------------------------------
-# We need `FILENAME-NOEXT.o', save this into `LIBOBJS'.
-# We don't use AC_SUBST/2 because it forces an unnecessary eol.
+# _AC_LIBOBJ(FILE-NAME-NOEXT, ACTION-IF-INDIR)
+# --------------------------------------------
+# We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
m4_define([_AC_LIBOBJ],
[AS_LITERAL_IF([$1],
[AC_LIBSOURCE([$1.c])],
[$2])dnl
-AC_SUBST([LIB@&t@OBJS])dnl
-case $LIB@&t@OBJS in
- "$1.$ac_objext" | \
- *" $1.$ac_objext" | \
- "$1.$ac_objext "* | \
+case " $LIB@&t@OBJS " in
*" $1.$ac_objext "* ) ;;
- *) LIB@&t@OBJS="$LIB@&t@OBJS $1.$ac_objext" ;;
+ *) AC_SUBST([LIB@&t@OBJS], ["$LIB@&t@OBJS $1.$ac_objext"]) ;;
esac
])
-
-# AC_LIBOBJ(FILENAME-NOEXT)
+# AC_LIBOBJ(FILE-NAME-NOEXT)
# -------------------------
-# We need `FILENAME-NOEXT.o', save this into `LIBOBJS'.
-# We don't use AC_SUBST/2 because it forces an unnecessary eol.
+# We need `FILE-NAME-NOEXT.o', save this into `LIBOBJS'.
m4_define([AC_LIBOBJ],
[_AC_LIBOBJ([$1],
[AC_DIAGNOSE(syntax,
# _AC_LIBOBJS_NORMALIZE
# ---------------------
-# Clean up LIBOBJS abd LTLIBOBJS so that they work with 1. ac_objext,
+# Clean up LIBOBJS and LTLIBOBJS so that they work with 1. ac_objext,
# 2. Automake's ANSI2KNR, 3. Libtool, 4. combination of the three.
# Used with AC_CONFIG_COMMANDS_PRE.
AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
ac_ltlibobjs=
for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
# 1. Remove the extension, and $U if already installed.
- ac_i=`echo "$ac_i" |
- sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
- # 2. Add them.
- ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
- ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
+ ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+ ac_i=`echo "$ac_i" | sed "$ac_script"`
+ # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
+ # will be set to the directory where LIBOBJS objects are built.
+ ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+ ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
done
AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
## ----------------------------------- ##
-# _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, [INCLUDES], [IF-FAILS])
-# ---------------------------------------------------------------------
+# _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
+# -------------------------------------------------------------------
# Compute the integer EXPRESSION and store the result in the VARIABLE.
# Works OK if cross compiling, but assumes twos-complement arithmetic.
m4_define([_AC_COMPUTE_INT_COMPILE],
[# Depending upon the size, compute the lo and hi bounds.
-AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
+_AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])],
[ac_lo=0 ac_mid=0
while :; do
- AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
- [ac_hi=$ac_mid; break],
- [ac_lo=`expr $ac_mid + 1`
- if test $ac_lo -le $ac_mid; then
- ac_lo= ac_hi=
- break
- fi
- ac_mid=`expr 2 '*' $ac_mid + 1`])
+ _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
+ [ac_hi=$ac_mid; break],
+ [ac_lo=`expr $ac_mid + 1`
+ if test $ac_lo -le $ac_mid; then
+ ac_lo= ac_hi=
+ break
+ fi
+ ac_mid=`expr 2 '*' $ac_mid + 1`])
done],
[AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) < 0])],
[ac_hi=-1 ac_mid=-1
while :; do
- AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
- [ac_lo=$ac_mid; break],
- [ac_hi=`expr '(' $ac_mid ')' - 1`
- if test $ac_mid -le $ac_hi; then
- ac_lo= ac_hi=
- break
- fi
- ac_mid=`expr 2 '*' $ac_mid`])
+ _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])],
+ [ac_lo=$ac_mid; break],
+ [ac_hi=`expr '(' $ac_mid ')' - 1`
+ if test $ac_mid -le $ac_hi; then
+ ac_lo= ac_hi=
+ break
+ fi
+ ac_mid=`expr 2 '*' $ac_mid`])
done],
[ac_lo= ac_hi=])])
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
- AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
+ _AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])],
[ac_hi=$ac_mid], [ac_lo=`expr '(' $ac_mid ')' + 1`])
done
case $ac_lo in
])# _AC_COMPUTE_INT_COMPILE
-# _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, [INCLUDES], [IF-FAILS])
-# -----------------------------------------------------------------
+# _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
+# ---------------------------------------------------------------
# Store the evaluation of the integer EXPRESSION in VARIABLE.
m4_define([_AC_COMPUTE_INT_RUN],
-[AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
- [$2=`cat conftest.val`], [$4])])
+[_AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])],
+ [$2=`cat conftest.val`], [$4])])
-# _AC_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
-# ---------------------------------------------------------
-m4_define([_AC_COMPUTE_INT],
-[if test "$cross_compiling" = yes; then
- _AC_COMPUTE_INT_COMPILE([$1], [$2], [$3], [$4])
+# AC_COMPUTE_INT(VARIABLE, EXPRESSION, PROLOGUE, [IF-FAILS])
+# ----------------------------------------------------------
+AC_DEFUN([AC_COMPUTE_INT],
+[AC_LANG_COMPILER_REQUIRE()dnl
+if test "$cross_compiling" = yes; then
+ _AC_COMPUTE_INT_COMPILE([$2], [$1], [$3], [$4])
else
- _AC_COMPUTE_INT_RUN([$1], [$2], [$3], [$4])
+ _AC_COMPUTE_INT_RUN([$2], [$1], [$3], [$4])
fi
rm -f conftest.val[]dnl
])# _AC_COMPUTE_INT
+
+# _AC_COMPUTE_INT(EXPRESSION, VARIABLE, PROLOGUE, [IF-FAILS])
+# -----------------------------------------------------------
+# FIXME: this private interface was used by several packages.
+# Give them time to transition to AC_COMPUTE_INT and then delete this one.
+AC_DEFUN([_AC_COMPUTE_INT],
+[AC_COMPUTE_INT([$2], [$1], [$3], [$4])
+AC_DIAGNOSE([obsolete],
+[The macro `_AC_COMPUTE_INT' is obsolete and will be deleted in a
+future version or Autoconf. Hence, it is suggested that you use
+instead the public AC_COMPUTE_INT macro. Note that the arguments are
+slightly different between the two.])dnl
+])# _AC_COMPUTE_INT
# This file is part of Autoconf. -*- Autoconf -*-
# Checking for libraries.
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002 Free Software Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
# --------------------------------------------------------
# Search for a library defining FUNC, if it's not already available.
AC_DEFUN([AC_SEARCH_LIBS],
-[AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
+[AS_VAR_PUSHDEF([ac_Search], [ac_cv_search_$1])dnl
+AC_CACHE_CHECK([for library containing $1], [ac_Search],
[ac_func_search_save_LIBS=$LIBS
-ac_cv_search_$1=no
-AC_LINK_IFELSE([AC_LANG_CALL([], [$1])],
- [ac_cv_search_$1="none required"])
-if test "$ac_cv_search_$1" = no; then
- for ac_lib in $2; do
+AC_LANG_CONFTEST([AC_LANG_CALL([], [$1])])
+for ac_lib in '' $2; do
+ if test -z "$ac_lib"; then
+ ac_res="none required"
+ else
+ ac_res=-l$ac_lib
LIBS="-l$ac_lib $5 $ac_func_search_save_LIBS"
- AC_LINK_IFELSE([AC_LANG_CALL([], [$1])],
- [ac_cv_search_$1="-l$ac_lib"
-break])
- done
-fi
+ fi
+ AC_LINK_IFELSE([], [AS_VAR_SET([ac_Search], [$ac_res])])
+ AS_VAR_SET_IF([ac_Search], [break])dnl
+done
+AS_VAR_SET_IF([ac_Search], , [AS_VAR_SET([ac_Search], [no])])dnl
+rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS])
-AS_IF([test "$ac_cv_search_$1" != no],
- [test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS"
+ac_res=AS_VAR_GET([ac_Search])
+AS_IF([test "$ac_res" != no],
+ [test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
$3],
[$4])dnl
+AS_VAR_POPDEF([ac_Search])dnl
])
AS_LITERAL_IF([$1],
[AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$2])],
[AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1''_$2])])dnl
-AC_CACHE_CHECK([for $2 in -l$1], ac_Lib,
+AC_CACHE_CHECK([for $2 in -l$1], [ac_Lib],
[ac_check_lib_save_LIBS=$LIBS
LIBS="-l$1 $5 $LIBS"
AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
- [AS_VAR_SET(ac_Lib, yes)],
- [AS_VAR_SET(ac_Lib, no)])
+ [AS_VAR_SET([ac_Lib], [yes])],
+ [AS_VAR_SET([ac_Lib], [no])])
LIBS=$ac_check_lib_save_LIBS])
-AS_IF([test AS_VAR_GET(ac_Lib) = yes],
+AS_IF([test AS_VAR_GET([ac_Lib]) = yes],
[m4_default([$3], [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
LIBS="-l$1 $LIBS"
])],
# AH_CHECK_LIB(LIBNAME)
# ---------------------
m4_define([AH_CHECK_LIB],
-[AH_TEMPLATE(AS_TR_CPP(HAVE_LIB$1),
- [Define to 1 if you have the `]$1[' library (-l]$1[).])])
+[AH_TEMPLATE(AS_TR_CPP([HAVE_LIB$1]),
+ [Define to 1 if you have the `$1' library (-l$1).])])
# AC_HAVE_LIBRARY(LIBRARY,
# Internal subroutine of _AC_PATH_X.
# Set ac_x_includes and/or ac_x_libraries.
m4_define([_AC_PATH_X_XMKMF],
-[rm -fr conftest.dir
+[AC_ARG_VAR(XMKMF, [Path to xmkmf, Makefile generator for X Window System])dnl
+rm -f -r conftest.dir
if mkdir conftest.dir; then
cd conftest.dir
- # Make sure to not put "make" in the Imakefile rules, since we grep it out.
cat >Imakefile <<'_ACEOF'
-acfindx:
- @echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"'
+incroot:
+ @echo incroot='${INCROOT}'
+usrlibdir:
+ @echo usrlibdir='${USRLIBDIR}'
+libdir:
+ @echo libdir='${LIBDIR}'
_ACEOF
- if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
+ if (export CC; ${XMKMF-xmkmf}) >/dev/null 2>/dev/null && test -f Makefile; then
# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
- eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
+ for ac_var in incroot usrlibdir libdir; do
+ eval "ac_im_$ac_var=\`\${MAKE-make} $ac_var 2>/dev/null | sed -n 's/^$ac_var=//p'\`"
+ done
# Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
for ac_extension in a so sl; do
- if test ! -f $ac_im_usrlibdir/libX11.$ac_extension &&
- test -f $ac_im_libdir/libX11.$ac_extension; then
+ if test ! -f "$ac_im_usrlibdir/libX11.$ac_extension" &&
+ test -f "$ac_im_libdir/libX11.$ac_extension"; then
ac_im_usrlibdir=$ac_im_libdir; break
fi
done
# bogus both because they are the default anyway, and because
# using them would break gcc on systems where it needs fixed includes.
case $ac_im_incroot in
- /usr/include) ;;
+ /usr/include) ac_x_includes= ;;
*) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes=$ac_im_incroot;;
esac
case $ac_im_usrlibdir in
esac
fi
cd ..
- rm -fr conftest.dir
+ rm -f -r conftest.dir
fi
])# _AC_PATH_X_XMKMF
/usr/openwin/share/include'
if test "$ac_x_includes" = no; then
- # Guess where to find include files, by looking for a specified header file.
+ # Guess where to find include files, by looking for Xlib.h.
# First, try using that file with no special directory specified.
- AC_PREPROC_IFELSE([AC_LANG_SOURCE([@%:@include <X11/Intrinsic.h>])],
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE([@%:@include <X11/Xlib.h>])],
[# We can compile using X headers with no special include directory.
ac_x_includes=],
[for ac_dir in $ac_x_header_dirs; do
- if test -r "$ac_dir/X11/Intrinsic.h"; then
+ if test -r "$ac_dir/X11/Xlib.h"; then
ac_x_includes=$ac_dir
break
fi
# See if we find them without any special options.
# Don't add to $LIBS permanently.
ac_save_LIBS=$LIBS
- LIBS="-lXt $LIBS"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([@%:@include <X11/Intrinsic.h>],
- [XtMalloc (0)])],
+ LIBS="-lX11 $LIBS"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([@%:@include <X11/Xlib.h>],
+ [XrmInitialize ()])],
[LIBS=$ac_save_LIBS
# We can link X programs with no special library path.
ac_x_libraries=],
do
# Don't even attempt the hair of trying to link an X program!
for ac_extension in a so sl; do
- if test -r $ac_dir/libXt.$ac_extension; then
+ if test -r "$ac_dir/libX11.$ac_extension"; then
ac_x_libraries=$ac_dir
break 2
fi
ac_x_includes=no ac_x_libraries=no
_AC_PATH_X_XMKMF
_AC_PATH_X_DIRECT
-if test "$ac_x_includes" = no || test "$ac_x_libraries" = no; then
- # Didn't find X anywhere. Cache the known absence of X.
- ac_cv_have_x="have_x=no"
-else
- # Record where we found X for the cache.
- ac_cv_have_x="have_x=yes \
- ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries"
-fi])dnl
+case $ac_x_includes,$ac_x_libraries in #(
+ no,* | *,no | *\'*)
+ # Didn't find X, or a directory has "'" in its name.
+ ac_cv_have_x="have_x=no";; #(
+ *)
+ # Record where we found X for the cache.
+ ac_cv_have_x="have_x=yes\
+ ac_x_includes='$ac_x_includes'\
+ ac_x_libraries='$ac_x_libraries'"
+esac])dnl
])
X features:
--x-includes=DIR X include files are in DIR
--x-libraries=DIR X library files are in DIR])dnl
+AC_MSG_CHECKING([for X])
-if test "x$ac_path_x_has_been_run" != xyes; then
- AC_MSG_CHECKING([for X])
-
-ac_path_x_has_been_run=yes
AC_ARG_WITH(x, [ --with-x use the X Window System])
# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
if test "x$with_x" = xno; then
# The user explicitly disabled X.
have_x=disabled
else
- if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then
- # Both variables are already set.
- have_x=yes
- else
- _AC_PATH_X
- fi
+ case $x_includes,$x_libraries in #(
+ *\'*) AC_MSG_ERROR([Cannot use X directory names containing ']);; #(
+ *,NONE | NONE,*) _AC_PATH_X;; #(
+ *) have_x=yes;;
+ esac
eval "$ac_cv_have_x"
fi # $with_x != no
test "x$x_includes" = xNONE && x_includes=$ac_x_includes
test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries
# Update the cache value to reflect the command line values.
- ac_cv_have_x="have_x=yes \
- ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
- # It might be that x_includes is empty (headers are found in the
- # standard search path. Then output the corresponding message
- ac_out_x_includes=$x_includes
- test "x$x_includes" = x && ac_out_x_includes="in standard search path"
- AC_MSG_RESULT([libraries $x_libraries, headers $ac_out_x_includes])
+ ac_cv_have_x="have_x=yes\
+ ac_x_includes='$x_includes'\
+ ac_x_libraries='$x_libraries'"
+ AC_MSG_RESULT([libraries $x_libraries, headers $x_includes])
fi
-
-fi])# AC_PATH_X
+])# AC_PATH_X
# It would also be nice to do this for all -L options, not just this one.
if test -n "$x_libraries"; then
X_LIBS="$X_LIBS -L$x_libraries"
-dnl FIXME: banish uname from this macro!
# For Solaris; some versions of Sun CC require a space after -R and
# others require no space. Words are not sufficient . . . .
- case `(uname -sr) 2>/dev/null` in
- "SunOS 5"*)
- AC_MSG_CHECKING([whether -R must be followed by a space])
- ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
- AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_nospace=yes, ac_R_nospace=no)
- if test $ac_R_nospace = yes; then
- AC_MSG_RESULT([no])
- X_LIBS="$X_LIBS -R$x_libraries"
- else
- LIBS="$ac_xsave_LIBS -R $x_libraries"
- AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_R_space=yes, ac_R_space=no)
- if test $ac_R_space = yes; then
- AC_MSG_RESULT([yes])
- X_LIBS="$X_LIBS -R $x_libraries"
- else
- AC_MSG_RESULT([neither works])
- fi
- fi
- LIBS=$ac_xsave_LIBS
- esac
+ AC_MSG_CHECKING([whether -R must be followed by a space])
+ ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
+ ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag=$ac_[]_AC_LANG_ABBREV[]_werror_flag
+ ac_[]_AC_LANG_ABBREV[]_werror_flag=yes
+ AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+ [AC_MSG_RESULT([no])
+ X_LIBS="$X_LIBS -R$x_libraries"],
+ [LIBS="$ac_xsave_LIBS -R $x_libraries"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+ [AC_MSG_RESULT([yes])
+ X_LIBS="$X_LIBS -R $x_libraries"],
+ [AC_MSG_RESULT([neither works])])])
+ ac_[]_AC_LANG_ABBREV[]_werror_flag=$ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag
+ LIBS=$ac_xsave_LIBS
fi
# Check for system-dependent libraries X programs must link with.
# This file is part of Autoconf. -*- Autoconf -*-
# Parameterizing and creating config.status.
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003 Free Software Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
#
# They are output via an *unquoted* here-doc. As a consequence $var
# will be output as the value of VAR. This is typically used by
-# `configure' to give `config,.status' some variables it needs to run
-# the COMMANDS. At the difference of `COMMANDS', the INIT-CMDS are
+# `configure' to give `config.status' some variables it needs to run
+# the COMMANDS. At the difference of COMMANDS, the INIT-CMDS are
# always run.
#
#
-# Some uniformity exists around here, please respect it!
-#
-# A macro named AC_CONFIG_FOOS has three args: the `TAG...' (or
-# `FILE...' when it applies), the `COMMANDS' and the `INIT-CMDS'. It
-# first checks that TAG was not registered elsewhere thanks to
-# AC_CONFIG_UNIQUE. Then it registers `TAG...' in AC_LIST_FOOS, and for
-# each `TAG', a special line in AC_LIST_FOOS_COMMANDS which is used in
-# `config.status' like this:
-#
-# case $ac_tag in
-# AC_LIST_FOOS_COMMANDS
-# esac
-#
-# Finally, the `INIT-CMDS' are dumped into a special diversion, via
-# `_AC_CONFIG_COMMANDS_INIT'. While `COMMANDS' are output once per TAG,
-# `INIT-CMDS' are dumped only once per call to AC_CONFIG_FOOS.
-#
-# It also leave the TAG in the shell variable ac_config_foo which contains
-# those which will actually be executed. In other words:
-#
-# if false; then
-# AC_CONFIG_FOOS(bar, [touch bar])
-# fi
-#
-# will not create bar.
-#
-# AC_CONFIG_FOOS can be called several times (with different TAGs of
-# course).
-#
-# Because these macros should not output anything, there should be `dnl'
-# everywhere. A pain my friend, a pain. So instead in each macro we
-# divert(-1) and restore the diversion at the end.
-#
-#
# Honorable members of this family are AC_CONFIG_FILES,
# AC_CONFIG_HEADERS, AC_CONFIG_LINKS and AC_CONFIG_COMMANDS. Bad boys
# are AC_LINK_FILES, AC_OUTPUT_COMMANDS and AC_OUTPUT when used with
## Auxiliary macros. ##
## ------------------ ##
-# _AC_SRCPATHS(BUILD-DIR-NAME)
-# ----------------------------
+# _AC_SRCDIRS(BUILD-DIR-NAME)
+# ---------------------------
# Inputs:
# - BUILD-DIR-NAME is `top-build -> build' and `top-src -> src'
# - `$srcdir' is `top-build -> top-src'
#
-# Ouputs:
+# Outputs:
# - `ac_builddir' is `.', for symmetry only.
-# - `ac_top_builddir' is `build -> top_build'.
+# - `ac_top_builddir_sub' is `build -> top_build'.
+# This is used for @top_builddir@.
+# - `ac_top_build_prefix' is `build -> top_build'.
# If not empty, has a trailing slash.
# - `ac_srcdir' is `build -> src'.
# - `ac_top_srcdir' is `build -> top-src'.
-#
-# and `ac_abs_builddir' etc., the absolute paths.
-m4_define([_AC_SRCPATHS],
+# and `ac_abs_builddir' etc., the absolute directory names.
+m4_define([_AC_SRCDIRS],
[ac_builddir=.
-if test $1 != .; then
+case $1 in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
ac_dir_suffix=/`echo $1 | sed 's,^\.[[\\/]],,'`
- # A "../" for each directory in $ac_dir_suffix.
- ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[[^\\/]]*,../,g'`
-else
- ac_dir_suffix= ac_top_builddir=
-fi
+ # A ".." for each directory in $ac_dir_suffix.
+ ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[[^\\/]]*,/..,g;s,/,,'`
+ case $ac_top_builddir_sub in
+ "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+ *) ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+ esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
case $srcdir in
- .) # No --srcdir option. We are building in place.
+ .) # We are building in place.
ac_srcdir=.
- if test -z "$ac_top_builddir"; then
- ac_top_srcdir=.
- else
- ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
- fi ;;
- [[\\/]]* | ?:[[\\/]]* ) # Absolute path.
+ ac_top_srcdir=$ac_top_builddir_sub
+ ac_abs_top_srcdir=$ac_pwd ;;
+ [[\\/]]* | ?:[[\\/]]* ) # Absolute name.
ac_srcdir=$srcdir$ac_dir_suffix;
- ac_top_srcdir=$srcdir ;;
- *) # Relative path.
- ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
- ac_top_srcdir=$ac_top_builddir$srcdir ;;
+ ac_top_srcdir=$srcdir
+ ac_abs_top_srcdir=$srcdir ;;
+ *) # Relative name.
+ ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_build_prefix$srcdir
+ ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+])# _AC_SRCDIRS
-# Do not use `cd foo && pwd` to compute absolute paths, because
-# the directories may not exist.
-AS_SET_CATFILE([ac_abs_builddir], [`pwd`], [$1])
-AS_SET_CATFILE([ac_abs_top_builddir],
- [$ac_abs_builddir], [${ac_top_builddir}.])
-AS_SET_CATFILE([ac_abs_srcdir], [$ac_abs_builddir], [$ac_srcdir])
-AS_SET_CATFILE([ac_abs_top_srcdir], [$ac_abs_builddir], [$ac_top_srcdir])
-])# _AC_SRCPATHS
+## ---------------------- ##
+## Registering the tags. ##
+## ---------------------- ##
-## ------------------------------------- ##
-## Ensuring the uniqueness of the tags. ##
-## ------------------------------------- ##
-# AC_CONFIG_IF_MEMBER(DEST, LIST-NAME, ACTION-IF-TRUE, ACTION-IF-FALSE)
-# ----------------------------------------------------------------
-# If DEST is member of LIST-NAME, expand to ACTION-IF-TRUE, else
-# ACTION-IF-FALSE.
-#
-# LIST is an AC_CONFIG list, i.e., a list of DEST[:SOURCE], separated
-# with spaces.
+# _AC_CONFIG_COMMANDS_INIT([INIT-COMMANDS])
+# -----------------------------------------
#
-# FIXME: This macro is badly designed, but I'm not guilty: m4 is. There
-# is just no way to simply compare two strings in m4, but to use pattern
-# matching. The big problem is then that the active characters should
-# be quoted. Currently `+*.' are quoted.
-m4_define([AC_CONFIG_IF_MEMBER],
-[m4_bmatch(m4_defn([$2]), [\(^\| \)]m4_re_escape([$1])[\([: ]\|$\)],
- [$3], [$4])])
+# Register INIT-COMMANDS as command pasted *unquoted* in
+# `config.status'. This is typically used to pass variables from
+# `configure' to `config.status'. Note that $[1] is not over quoted as
+# was the case in AC_OUTPUT_COMMANDS.
+m4_define([_AC_CONFIG_COMMANDS_INIT],
+[m4_ifval([$1],
+ [m4_append([_AC_OUTPUT_COMMANDS_INIT],
+ [$1
+])])])
# AC_FILE_DEPENDENCY_TRACE(DEST, SOURCE1, [SOURCE2...])
# -----------------------------------------------------
# This macro does nothing, it's a hook to be read with `autoconf --trace'.
+#
# It announces DEST depends upon the SOURCE1 etc.
m4_define([AC_FILE_DEPENDENCY_TRACE], [])
-# _AC_CONFIG_DEPENDENCY(DEST, [SOURCE1], [SOURCE2...])
-# ----------------------------------------------------
+# _AC_FILE_DEPENDENCY_TRACE_COLON(DEST:SOURCE1[:SOURCE2...])
+# ----------------------------------------------------------
+# Declare that DEST depends upon SOURCE1 etc.
+#
+m4_define([_AC_FILE_DEPENDENCY_TRACE_COLON],
+[AC_FILE_DEPENDENCY_TRACE(m4_bpatsubst([$1], [:], [,]))dnl
+])
+
+
+# _AC_CONFIG_DEPENDENCY(MODE, DEST[:SOURCE1...])
+# ---------------------------------------------
+# MODE is `FILES', `HEADERS', or `LINKS'.
+#
# Be sure that a missing dependency is expressed as a dependency upon
-# `DEST.in'.
+# `DEST.in' (except with config links).
+#
m4_define([_AC_CONFIG_DEPENDENCY],
-[m4_ifval([$2],
- [AC_FILE_DEPENDENCY_TRACE($@)],
- [AC_FILE_DEPENDENCY_TRACE([$1], [$1.in])])])
+[_AC_FILE_DEPENDENCY_TRACE_COLON([$2]_AC_CONFIG_DEPENDENCY_DEFAULT($@))dnl
+])
-# _AC_CONFIG_DEPENDENCIES(DEST[:SOURCE1[:SOURCE2...]]...)
-# -------------------------------------------------------
-# Declare the DESTs depend upon their SOURCE1 etc.
-m4_define([_AC_CONFIG_DEPENDENCIES],
-[AC_FOREACH([AC_File], [$1],
- [_AC_CONFIG_DEPENDENCY(m4_bpatsubst(AC_File, [:], [,]))])dnl
+# _AC_CONFIG_DEPENDENCY_DEFAULT(MODE, DEST[:SOURCE1...])
+# ------------------------------------------------------
+# Expand to `:DEST.in' if appropriate, or to empty string otherwise.
+#
+# More detailed edscription:
+# If the tag contains `:', expand to nothing.
+# Otherwise, for a config file or header, add `:DEST.in'.
+# For config link, DEST.in is not appropriate:
+# - if the tag is literal, complain.
+# - otherwise, just expand to nothing and proceed with fingers crossed.
+# (We get to this case from the obsolete AC_LINK_FILES, for example.)
+#
+m4_define([_AC_CONFIG_DEPENDENCY_DEFAULT],
+[m4_bmatch([$2], [:], [],
+ [m4_if([$1], [LINKS],
+ [AS_LITERAL_IF([$2], [AC_FATAL([Invalid AC_CONFIG_LINKS tag: `$2'])])],
+ [:$2.in])])dnl
])
-# _AC_CONFIG_UNIQUE(DEST[:SOURCE]...)
-# -----------------------------------
+# _AC_CONFIG_UNIQUE(MODE, DEST)
+# -----------------------------
+# MODE is `FILES', `HEADERS', `LINKS', `COMMANDS', or `SUBDIRS'.
#
-# Verify that there is no double definition of an output file
-# (precisely, guarantees there is no common elements between
-# CONFIG_HEADERS, CONFIG_FILES, CONFIG_LINKS, and CONFIG_SUBDIRS).
+# Verify that there is no double definition of an output file.
#
-# Note that this macro does not check if the list $[1] itself
-# contains doubles.
m4_define([_AC_CONFIG_UNIQUE],
-[AC_FOREACH([AC_File], [$1],
-[m4_pushdef([AC_Dest], m4_bpatsubst(AC_File, [:.*]))dnl
- AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_HEADERS],
- [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_HEADERS.])])dnl
- AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_LINKS],
- [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_LINKS.])])dnl
- AC_CONFIG_IF_MEMBER(AC_Dest, [_AC_LIST_SUBDIRS],
- [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_SUBDIRS.])])dnl
- AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_COMMANDS],
- [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_COMMANDS.])])dnl
- AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_FILES],
- [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_FILES.])])dnl
-m4_popdef([AC_Dest])])dnl
+[m4_ifdef([_AC_SEEN_TAG($2)],
+ [AC_FATAL([`$2' is already registered with AC_CONFIG_]m4_defn([_AC_SEEN_TAG($2)]).)],
+ [m4_define([_AC_SEEN_TAG($2)], [$1])])dnl
])
-
-## ------------------------ ##
-## Configuration commands. ##
-## ------------------------ ##
+# _AC_CONFIG_FOOS(MODE, TAGS..., [COMMANDS], [INIT-CMDS])
+# -------------------------------------------------------
+# MODE is `FILES', `HEADERS', `LINKS', or `COMMANDS'.
+#
+# Associate the COMMANDS to each TAG, i.e., when config.status creates TAG,
+# run COMMANDS afterwards. (This is done in _AC_CONFIG_REGISTER_DEST.)
+#
+# For COMMANDS, do not m4_normalize TAGS before adding it to ac_config_commands.
+# This historical difference allows macro calls in TAGS.
+#
+m4_define([_AC_CONFIG_FOOS],
+[m4_foreach_w([AC_File], [$2],
+ [_AC_CONFIG_REGISTER([$1], m4_defn([AC_File]), [$3])])dnl
+m4_define([_AC_SEEN_CONFIG(ANY)])dnl
+m4_define([_AC_SEEN_CONFIG($1)])dnl
+_AC_CONFIG_COMMANDS_INIT([$4])dnl
+ac_config_[]m4_tolower([$1])="$ac_config_[]m4_tolower([$1]) dnl
+m4_if([$1], [COMMANDS], [$2], [m4_normalize([$2])])"
+])
-# _AC_CONFIG_COMMANDS_INIT([INIT-COMMANDS])
-# -----------------------------------------
+# _AC_CONFIG_REGISTER(MODE, TAG, [COMMANDS])
+# ------------------------------------------
+# MODE is `FILES', `HEADERS', `LINKS', or `COMMANDS'.
#
-# Register INIT-COMMANDS as command pasted *unquoted* in
-# `config.status'. This is typically used to pass variables from
-# `configure' to `config.status'. Note that $[1] is not over quoted as
-# was the case in AC_OUTPUT_COMMANDS.
-m4_define([_AC_CONFIG_COMMANDS_INIT],
-[m4_ifval([$1],
- [m4_append([_AC_OUTPUT_COMMANDS_INIT],
- [$1
-])])])
+m4_define([_AC_CONFIG_REGISTER],
+[m4_if([$1], [COMMANDS],
+ [],
+ [_AC_CONFIG_DEPENDENCY([$1], [$2])])dnl
+_AC_CONFIG_REGISTER_DEST([$1], [$2], m4_bpatsubst([[$2]], [:.*\(.\)$], [\1]), [$3])dnl
+])
-# Initialize.
-m4_define([_AC_OUTPUT_COMMANDS_INIT])
-
-
-# _AC_CONFIG_COMMAND(NAME, [COMMANDS])
-# ------------------------------------
-# See below.
-m4_define([_AC_CONFIG_COMMAND],
-[_AC_CONFIG_UNIQUE([$1])dnl
-m4_append([AC_LIST_COMMANDS], [ $1])dnl
-m4_ifval([$2],
-[m4_append([AC_LIST_COMMANDS_COMMANDS],
-[ ]m4_bpatsubst([$1], [:.*])[ ) $2 ;;
+
+# _AC_CONFIG_REGISTER_DEST(MODE, TAG, DEST, [COMMANDS])
+# -----------------------------------------------------
+# MODE is `FILES', `HEADERS', `LINKS', or `COMMANDS'.
+# TAG is in the form DEST[:SOURCE...].
+# Thus parameter $3 is the first part of $2.
+#
+# With CONFIG_LINKS, reject DEST=., because it is makes it hard for ./config.status
+# to guess the links to establish (`./config.status .').
+#
+# Save the name of the first config header to AH_HEADER.
+#
+m4_define([_AC_CONFIG_REGISTER_DEST],
+[_AC_CONFIG_UNIQUE([$1], [$3])dnl
+m4_if([$1 $3], [LINKS .],
+ [AC_FATAL([invalid destination of a config link: `.'])])dnl
+m4_if([$1], [HEADERS],
+ [m4_define_default([AH_HEADER], [$3])])dnl
+dnl
+dnl Recognize TAG as an argument to config.status:
+dnl
+m4_append([_AC_LIST_TAGS],
+[ "$3") CONFIG_$1="$CONFIG_$1 $2" ;;
+])dnl
+dnl
+dnl Register the associated commands, if any:
+dnl
+m4_ifval([$4],
+[m4_append([_AC_LIST_TAG_COMMANDS],
+[ "$3":]m4_bpatsubst([$1], [^\(.\).*$], [\1])[) $4 ;;
])])dnl
-])
+])# _AC_CONFIG_REGISTER_DEST
-# AC_CONFIG_COMMANDS(NAME...,[COMMANDS], [INIT-CMDS])
-# ---------------------------------------------------
+
+
+
+## --------------------- ##
+## Configuration files. ##
+## --------------------- ##
+
+
+# AC_CONFIG_FILES(FILE..., [COMMANDS], [INIT-CMDS])
+# -------------------------------------------------
+# Specify output files, i.e., files that are configured with AC_SUBST.
#
-# Specify additional commands to be run by config.status. This
-# commands must be associated with a NAME, which should be thought
-# as the name of a file the COMMANDS create.
-AC_DEFUN([AC_CONFIG_COMMANDS],
-[AC_FOREACH([AC_Name], [$1], [_AC_CONFIG_COMMAND(m4_defn([AC_Name]), [$2])])dnl
-_AC_CONFIG_COMMANDS_INIT([$3])dnl
-ac_config_commands="$ac_config_commands $1"
-])
+AC_DEFUN([AC_CONFIG_FILES], [_AC_CONFIG_FOOS([FILES], $@)])
-# Initialize the lists.
-m4_define([AC_LIST_COMMANDS])
-m4_define([AC_LIST_COMMANDS_COMMANDS])
+# _AC_SED_CMD_LIMIT
+# -----------------
+# Evaluate to an m4 number equal to the maximum number of commands to put
+# in any single sed program, not counting ":" commands.
+#
+# Some seds have small command number limits, like on Digital OSF/1 and HP-UX.
+m4_define([_AC_SED_CMD_LIMIT],
+dnl One cannot portably go further than 99 commands because of HP-UX.
+[99])
-# AC_OUTPUT_COMMANDS(EXTRA-CMDS, INIT-CMDS)
-# -----------------------------------------
+
+# _AC_OUTPUT_FILES_PREPARE
+# ------------------------
+# Create the sed scripts needed for CONFIG_FILES.
+# Support multiline substitutions and make sure that the substitutions are
+# not evaluated recursively.
+# The intention is to have readable config.status and configure, even
+# though this m4 code might be scaring.
#
-# Add additional commands for AC_OUTPUT to put into config.status.
+# This code was written by Dan Manthey.
#
-# This macro is an obsolete version of AC_CONFIG_COMMANDS. The only
-# difficulty in mapping AC_OUTPUT_COMMANDS to AC_CONFIG_COMMANDS is
-# to give a unique key. The scheme we have chosen is `default-1',
-# `default-2' etc. for each call.
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
#
-# Unfortunately this scheme is fragile: bad things might happen
-# if you update an included file and configure.ac: you might have
-# clashes :( On the other hand, I'd like to avoid weird keys (e.g.,
-# depending upon __file__ or the pid).
-AU_DEFUN([AC_OUTPUT_COMMANDS],
-[m4_define([_AC_OUTPUT_COMMANDS_CNT], m4_incr(_AC_OUTPUT_COMMANDS_CNT))dnl
-dnl Double quoted since that was the case in the original macro.
-AC_CONFIG_COMMANDS([default-]_AC_OUTPUT_COMMANDS_CNT, [[$1]], [[$2]])dnl
-])
+m4_define([_AC_OUTPUT_FILES_PREPARE],
+[#
+# Set up the sed scripts for CONFIG_FILES section.
+#
+dnl ... and define _AC_SED_CMDS, the pipeline which executes them.
+m4_define([_AC_SED_CMDS], [])dnl
-# Initialize.
-AU_DEFUN([_AC_OUTPUT_COMMANDS_CNT], 0)
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "$CONFIG_FILES"; then
+_ACEOF
-# AC_CONFIG_COMMANDS_PRE(CMDS)
-# ----------------------------
-# Commands to run right before config.status is created. Accumulates.
-AC_DEFUN([AC_CONFIG_COMMANDS_PRE],
-[m4_append([AC_OUTPUT_COMMANDS_PRE], [$1
-])])
+m4_pushdef([_AC_SED_FRAG_NUM], 0)dnl Fragment number.
+m4_pushdef([_AC_SED_CMD_NUM], 2)dnl Num of commands in current frag so far.
+m4_pushdef([_AC_SED_DELIM_NUM], 0)dnl Expected number of delimiters in file.
+m4_pushdef([_AC_SED_FRAG], [])dnl The constant part of the current fragment.
+dnl
+m4_ifdef([_AC_SUBST_FILES],
+[# Create sed commands to just substitute file output variables.
+
+m4_foreach_w([_AC_Var], m4_defn([_AC_SUBST_FILES]),
+[dnl End fragments at beginning of loop so that last fragment is not ended.
+m4_if(m4_eval(_AC_SED_CMD_NUM + 3 > _AC_SED_CMD_LIMIT), 1,
+[dnl Fragment is full and not the last one, so no need for the final un-escape.
+dnl Increment fragment number.
+m4_define([_AC_SED_FRAG_NUM], m4_incr(_AC_SED_FRAG_NUM))dnl
+dnl Record that this fragment will need to be used.
+m4_define([_AC_SED_CMDS],
+ m4_defn([_AC_SED_CMDS])[| sed -f "$tmp/subs-]_AC_SED_FRAG_NUM[.sed" ])dnl
+[cat >>$CONFIG_STATUS <<_ACEOF
+cat >"\$tmp/subs-]_AC_SED_FRAG_NUM[.sed" <<\CEOF
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+]m4_defn([_AC_SED_FRAG])dnl
+[CEOF
+_ACEOF
+]m4_define([_AC_SED_CMD_NUM], 2)m4_define([_AC_SED_FRAG])dnl
+])dnl Last fragment ended.
+m4_define([_AC_SED_CMD_NUM], m4_eval(_AC_SED_CMD_NUM + 3))dnl
+m4_define([_AC_SED_FRAG],
+m4_defn([_AC_SED_FRAG])dnl
+[/^[ ]*@]_AC_Var[@[ ]*$/{
+r $]_AC_Var[
+d
+}
+])dnl
+])dnl
+# Remaining file output variables are in a fragment that also has non-file
+# output varibles.
-# AC_OUTPUT_COMMANDS_PRE
-# ----------------------
-# A *variable* in which we append all the actions that must be
-# performed before *creating* config.status. For a start, clean
-# up all the LIBOBJ mess.
-m4_define([AC_OUTPUT_COMMANDS_PRE],
-[_AC_LIBOBJS_NORMALIZE()
])
+dnl
+m4_define([_AC_SED_FRAG], [
+]m4_defn([_AC_SED_FRAG]))dnl
+m4_foreach_w([_AC_Var],
+m4_ifdef([_AC_SUBST_VARS], [m4_defn([_AC_SUBST_VARS]) ])[@END@],
+[m4_if(_AC_SED_DELIM_NUM, 0,
+[m4_if(_AC_Var, [@END@],
+[dnl The whole of the last fragment would be the final deletion of `|#_!!_#|'.
+m4_define([_AC_SED_CMDS], m4_defn([_AC_SED_CMDS])[| sed 's/|#_!!_#|//g' ])],
+[
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+ cat >conf$$subs.sed <<_ACEOF
+])])dnl
+m4_if(_AC_Var, [@END@],
+ [m4_if(m4_eval(_AC_SED_CMD_NUM + 2 <= _AC_SED_CMD_LIMIT), 1,
+ [m4_define([_AC_SED_FRAG], [ end]m4_defn([_AC_SED_FRAG]))])],
+[m4_define([_AC_SED_CMD_NUM], m4_incr(_AC_SED_CMD_NUM))dnl
+m4_define([_AC_SED_DELIM_NUM], m4_incr(_AC_SED_DELIM_NUM))dnl
+_AC_Var!$_AC_Var$ac_delim
+])dnl
+m4_if(_AC_SED_CMD_LIMIT,
+ m4_if(_AC_Var, [@END@], m4_if(_AC_SED_CMD_NUM, 2, 2, _AC_SED_CMD_LIMIT), _AC_SED_CMD_NUM),
+[_ACEOF
+
+dnl Do not use grep on conf$$subs.sed, since AIX grep has a line length limit.
+ if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = _AC_SED_DELIM_NUM; then
+ break
+ elif $ac_last_try; then
+ AC_MSG_ERROR([could not make $CONFIG_STATUS])
+ else
+ ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+ fi
+done
+dnl Similarly, avoid grep here too.
+ac_eof=`sed -n '/^CEOF[[0-9]]*$/s/CEOF/0/p' conf$$subs.sed`
+if test -n "$ac_eof"; then
+ ac_eof=`echo "$ac_eof" | sort -nru | sed 1q`
+ ac_eof=`expr $ac_eof + 1`
+fi
-# AC_CONFIG_COMMANDS_POST(CMDS)
-# -----------------------------
-# Commands to run after config.status was created. Accumulates.
-AC_DEFUN([AC_CONFIG_COMMANDS_POST],
-[m4_append([AC_OUTPUT_COMMANDS_POST], [$1
-])])
+dnl Increment fragment number.
+m4_define([_AC_SED_FRAG_NUM], m4_incr(_AC_SED_FRAG_NUM))dnl
+dnl Record that this fragment will need to be used.
+m4_define([_AC_SED_CMDS],
+m4_defn([_AC_SED_CMDS])[| sed -f "$tmp/subs-]_AC_SED_FRAG_NUM[.sed" ])dnl
+[cat >>$CONFIG_STATUS <<_ACEOF
+cat >"\$tmp/subs-]_AC_SED_FRAG_NUM[.sed" <<\CEOF$ac_eof
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b]m4_defn([_AC_SED_FRAG])dnl
+[_ACEOF
+sed '
+s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g
+s/^/s,@/; s/!/@,|#_!!_#|/
+:n
+t n
+s/'"$ac_delim"'$/,g/; t
+s/$/\\/; p
+N; s/^.*\n//; s/[,\\&]/\\&/g; s/@/@|#_!!_#|/g; b n
+' >>$CONFIG_STATUS <conf$$subs.sed
+rm -f conf$$subs.sed
+cat >>$CONFIG_STATUS <<_ACEOF
+]m4_if(_AC_Var, [@END@],
+[m4_if(m4_eval(_AC_SED_CMD_NUM + 2 > _AC_SED_CMD_LIMIT), 1,
+[m4_define([_AC_SED_CMDS], m4_defn([_AC_SED_CMDS])[| sed 's/|#_!!_#|//g' ])],
+[[:end
+s/|#_!!_#|//g
+]])])dnl
+CEOF$ac_eof
+_ACEOF
+m4_define([_AC_SED_FRAG], [
+])m4_define([_AC_SED_DELIM_NUM], 0)m4_define([_AC_SED_CMD_NUM], 2)dnl
-# Initialize.
-m4_define([AC_OUTPUT_COMMANDS_POST])
+])])dnl
+dnl
+m4_popdef([_AC_SED_FRAG_NUM])dnl
+m4_popdef([_AC_SED_CMD_NUM])dnl
+m4_popdef([_AC_SED_DELIM_NUM])dnl
+m4_popdef([_AC_SED_FRAG])dnl
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+ ac_vpsub=['/^[ ]*VPATH[ ]*=/{
+s/:*\$(srcdir):*/:/
+s/:*\${srcdir}:*/:/
+s/:*@srcdir@:*/:/
+s/^\([^=]*=[ ]*\):*/\1/
+s/:*$//
+s/^[^=]*=[ ]*$//
+}']
+fi
+cat >>$CONFIG_STATUS <<\_ACEOF
+fi # test -n "$CONFIG_FILES"
-# _AC_OUTPUT_COMMANDS
-# -------------------
-# This is a subroutine of AC_OUTPUT, in charge of issuing the code
-# related to AC_CONFIG_COMMANDS.
-#
-# It has to send itself into $CONFIG_STATUS (eg, via here documents).
-# Upon exit, no here document shall be opened.
-m4_define([_AC_OUTPUT_COMMANDS],
-[cat >>$CONFIG_STATUS <<\_ACEOF
+])# _AC_OUTPUT_FILES_PREPARE
+
+# _AC_OUTPUT_FILE
+# ---------------
+# Do the variable substitutions to create the Makefiles or whatever.
#
-# CONFIG_COMMANDS section.
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
#
-for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
- ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
- ac_source=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
- ac_dir=`AS_DIRNAME(["$ac_dest"])`
- AS_MKDIR_P(["$ac_dir"])
- _AC_SRCPATHS(["$ac_dir"])
+m4_define([_AC_OUTPUT_FILE],
+[
+ #
+ # CONFIG_FILE
+ #
- AC_MSG_NOTICE([executing $ac_dest commands])
-dnl Some shells don't like empty case/esac
-m4_ifset([AC_LIST_COMMANDS_COMMANDS],
-[ case $ac_dest in
-AC_LIST_COMMANDS_COMMANDS()dnl
+AC_PROVIDE_IFELSE([AC_PROG_INSTALL],
+[ case $INSTALL in
+ [[\\/$]]* | ?:[[\\/]]* ) ac_INSTALL=$INSTALL ;;
+ *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
esac
])dnl
-done
+AC_PROVIDE_IFELSE([AC_PROG_MKDIR_P],
+[ ac_MKDIR_P=$MKDIR_P
+ case $MKDIR_P in
+ [[\\/$]]* | ?:[[\\/]]* ) ;;
+ */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+ esac
+])dnl
+_ACEOF
+
+m4_ifndef([AC_DATAROOTDIR_CHECKED],
+[cat >>$CONFIG_STATUS <<\_ACEOF
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+m4_define([_AC_datarootdir_vars],
+ [datadir, docdir, infodir, localedir, mandir])
+case `sed -n '/datarootdir/ {
+ p
+ q
+}
+m4_foreach([_AC_Var], m4_defn([_AC_datarootdir_vars]),
+ [/@_AC_Var@/p
+])' $ac_file_inputs` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@[]m4_join([@*|*@], _AC_datarootdir_vars)@*)
+ AC_MSG_WARN([$ac_file_inputs seems to ignore the --datarootdir setting])
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+ ac_datarootdir_hack='
+ m4_foreach([_AC_Var], m4_defn([_AC_datarootdir_vars]),
+ [s&@_AC_Var@&$_AC_Var&g
+ ])dnl
+ s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
_ACEOF
-])# _AC_OUTPUT_COMMANDS
+])dnl
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF
+ sed "$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+:t
+[/@[a-zA-Z_][a-zA-Z_0-9]*@/!b]
+dnl configure_input is a somewhat special, so we don't call AC_SUBST_TRACE.
+s&@configure_input@&$configure_input&;t t
+dnl During the transition period, this is a special case:
+s&@top_builddir@&$ac_top_builddir_sub&;t t[]AC_SUBST_TRACE([top_builddir])
+m4_foreach([_AC_Var], [srcdir, abs_srcdir, top_srcdir, abs_top_srcdir,
+ builddir, abs_builddir,
+ abs_top_builddir]AC_PROVIDE_IFELSE([AC_PROG_INSTALL], [[, INSTALL]])AC_PROVIDE_IFELSE([AC_PROG_MKDIR_P], [[, MKDIR_P]]),
+ [s&@_AC_Var@&$ac_[]_AC_Var&;t t[]AC_SUBST_TRACE(_AC_Var)
+])dnl
+m4_ifndef([AC_DATAROOTDIR_CHECKED], [$ac_datarootdir_hack
+])dnl
+" $ac_file_inputs m4_defn([_AC_SED_CMDS])>$tmp/out
+
+m4_ifndef([AC_DATAROOTDIR_CHECKED],
+[test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+ { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
+ { ac_out=`sed -n '/^[[ ]]*datarootdir[[ ]]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
+ AC_MSG_WARN([$ac_file contains a reference to the variable `datarootdir'
+which seems to be undefined. Please make sure it is defined.])
+])dnl
+
+ rm -f "$tmp/stdin"
+ case $ac_file in
+ -) cat "$tmp/out"; rm -f "$tmp/out";;
+ *) rm -f "$ac_file"; mv "$tmp/out" $ac_file;;
+ esac
+dnl This would break Makefile dependencies:
+dnl if diff $ac_file "$tmp/out" >/dev/null 2>&1; then
+dnl echo "$ac_file is unchanged"
+dnl else
+dnl rm -f $ac_file; mv "$tmp/out" $ac_file
+dnl fi
+])# _AC_OUTPUT_FILE
## ----------------------- ##
-# _AC_CONFIG_HEADER(HEADER, [COMMANDS])
-# -------------------------------------
-# See below.
-m4_define([_AC_CONFIG_HEADER],
-[_AC_CONFIG_UNIQUE([$1])dnl
-m4_append([AC_LIST_HEADERS], [ $1])dnl
-_AC_CONFIG_DEPENDENCIES([$1])dnl
-dnl Register the commands
-m4_ifval([$2],
-[m4_append([AC_LIST_HEADERS_COMMANDS],
-[ ]m4_bpatsubst([$1], [:.*])[ ) $2 ;;
-])])dnl
-])
-
-
# AC_CONFIG_HEADERS(HEADERS..., [COMMANDS], [INIT-CMDS])
# ------------------------------------------------------
# Specify that the HEADERS are to be created by instantiation of the
-# AC_DEFINEs. Associate the COMMANDS to the HEADERS. This macro
-# accumulates if called several times.
+# AC_DEFINEs.
#
-# The commands are stored in a growing string AC_LIST_HEADERS_COMMANDS
-# which should be used like this:
-#
-# case $ac_file in
-# AC_LIST_HEADERS_COMMANDS
-# esac
-AC_DEFUN([AC_CONFIG_HEADERS],
-[AC_FOREACH([AC_File], [$1], [_AC_CONFIG_HEADER(m4_defn([AC_File]), [$2])])dnl
-_AC_CONFIG_COMMANDS_INIT([$3])dnl
-ac_config_headers="$ac_config_headers m4_normalize([$1])"
-])
-
-# Initialize to empty. It is much easier and uniform to have a config
-# list expand to empty when undefined, instead of special casing when
-# not defined (since in this case, AC_CONFIG_FOO expands to AC_CONFIG_FOO).
-m4_define([AC_LIST_HEADERS])
-m4_define([AC_LIST_HEADERS_COMMANDS])
+AC_DEFUN([AC_CONFIG_HEADERS], [_AC_CONFIG_FOOS([HEADERS], $@)])
# AC_CONFIG_HEADER(HEADER-TO-CREATE ...)
[AC_CONFIG_HEADERS([$1])])
-# _AC_OUTPUT_HEADERS
-# ------------------
+# _AC_OUTPUT_HEADER
+# -----------------
#
# Output the code which instantiates the `config.h' files from their
# `config.h.in'.
#
-# This is a subroutine of _AC_OUTPUT_CONFIG_STATUS. It has to send
-# itself into $CONFIG_STATUS (eg, via here documents). Upon exit, no
-# here document shall be opened.
-#
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
#
-# The code produced used to be extremely costly: there are was a
-# single sed script (n lines) handling both `#define' templates,
-# `#undef' templates with trailing space, and `#undef' templates
-# without trailing spaces. The full script was run on each of the m
-# lines of `config.h.in', i.e., about n x m.
-#
-# Now there are two scripts: `conftest.defines' for the `#define'
-# templates, and `conftest.undef' for the `#undef' templates.
-#
-# Optimization 1. It is incredibly costly to run two `#undef'
-# scripts, so just remove trailing spaces first. Removes about a
-# third of the cost.
-#
-# Optimization 2. Since `#define' are rare and obsoleted,
-# `conftest.defines' is built and run only if grep says there are
-# `#define'. Improves by at least a factor 2, since in addition we
-# avoid the cost of *producing* the sed script.
-#
-# Optimization 3. In each script, first check that the current input
-# line is a template. This avoids running the full sed script on
-# empty lines and comments (divides the cost by about 3 since each
-# template chunk is typically a comment, a template, an empty line).
-#
-# Optimization 4. Once a substitution performed, since there can be
-# only one per line, immediately restart the script on the next input
-# line (using the `t' sed instruction). Divides by about 2.
-# *Note:* In the case of the AC_SUBST sed script (_AC_OUTPUT_FILES)
-# this optimization cannot be applied as is, because there can be
-# several substitutions per line.
-#
-#
-# The result is about, hm, ... times blah... plus.... Ahem. The
-# result is about much faster.
-m4_define([_AC_OUTPUT_HEADERS],
-[cat >>$CONFIG_STATUS <<\_ACEOF
-
-#
-# CONFIG_HEADER section.
-#
-
-# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
-# NAME is the cpp macro being defined and VALUE is the value it is being given.
-#
-# ac_d sets the value in "#define NAME VALUE" lines.
-dnl Double quote for the `[ ]' and `define'.
-[ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)'
-ac_dB='[ ].*$,\1#\2'
-ac_dC=' '
-ac_dD=',;t'
-# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
-ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)'
-ac_uB='$,\1#\2define\3'
-ac_uC=' '
-ac_uD=',;t']
-
-for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case $ac_file in
- - | *:- | *:-:* ) # input from stdin
- cat >$tmp/stdin
- ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- *:* ) ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- * ) ac_file_in=$ac_file.in ;;
- esac
-
- test x"$ac_file" != x- && AC_MSG_NOTICE([creating $ac_file])
-
- # First look for the input files in the build tree, otherwise in the
- # src tree.
- ac_file_inputs=`IFS=:
- for f in $ac_file_in; do
- case $f in
- -) echo $tmp/stdin ;;
- [[\\/$]]*)
- # Absolute (can't be DOS-style, as IFS=:)
- test -f "$f" || AC_MSG_ERROR([cannot find input file: $f])
- # Do quote $f, to prevent DOS paths from being IFS'd.
- echo "$f";;
- *) # Relative
- if test -f "$f"; then
- # Build tree
- echo "$f"
- elif test -f "$srcdir/$f"; then
- # Source tree
- echo "$srcdir/$f"
- else
- # /dev/null tree
- AC_MSG_ERROR([cannot find input file: $f])
- fi;;
- esac
- done` || AS_EXIT([1])
- # Remove the trailing spaces.
- sed 's/[[ ]]*$//' $ac_file_inputs >$tmp/in
-
+m4_define([_AC_OUTPUT_HEADER],
+[
+ #
+ # CONFIG_HEADER
+ #
_ACEOF
-# Transform confdefs.h into two sed scripts, `conftest.defines' and
-# `conftest.undefs', that substitutes the proper values into
-# config.h.in to produce config.h. The first handles `#define'
-# templates, and the second `#undef' templates.
-# And first: Protect against being on the right side of a sed subst in
-# config.status. Protect against being in an unquoted here document
-# in config.status.
-rm -f conftest.defines conftest.undefs
-# Using a here document instead of a string reduces the quoting nightmare.
-# Putting comments in sed scripts is not portable.
-#
-# `end' is used to avoid that the second main sed command (meant for
-# 0-ary CPP macros) applies to n-ary macro definitions.
-# See the Autoconf documentation for `clear'.
-cat >confdef2sed.sed <<\_ACEOF
-dnl Double quote for `[ ]' and `define'.
-[s/[\\&,]/\\&/g
-s,[\\$`],\\&,g
-t clear
-: clear
-s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*\)\(([^)]*)\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
-t end
-s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
-: end]
-_ACEOF
-# If some macros were called several times there might be several times
-# the same #defines, which is useless. Nevertheless, we may not want to
-# sort them, since we want the *last* AC-DEFINE to be honored.
-uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
-sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
-rm -f confdef2sed.sed
-
-# This sed command replaces #undef with comments. This is necessary, for
+# Transform confdefs.h into a sed script `conftest.defines', that
+# substitutes the proper values into config.h.in to produce config.h.
+rm -f conftest.defines conftest.tail
+# First, append a space to every undef/define line, to ease matching.
+echo 's/$/ /' >conftest.defines
+# Then, protect against being on the right side of a sed subst, or in
+# an unquoted here document, in config.status. If some macros were
+# called several times there might be several #defines for the same
+# symbol, which is useless. But do not sort them, since the last
+# AC_DEFINE must be honored.
+dnl
+dnl Quote, for `[ ]' and `define'.
+[ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+# These sed commands are passed to sed as "A NAME B PARAMS C VALUE D", where
+# NAME is the cpp macro being defined, VALUE is the value it is being given.
+# PARAMS is the parameter list in the macro definition--in most cases, it's
+# just an empty string.
+ac_dA='s,^\\([ #]*\\)[^ ]*\\([ ]*'
+ac_dB='\\)[ (].*,\\1define\\2'
+ac_dC=' '
+ac_dD=' ,']
+dnl ac_dD used to contain `;t' at the end, but that was both slow and incorrect.
+dnl 1) Since the script must be broken into chunks containing 100 commands,
+dnl the extra command meant extra calls to sed.
+dnl 2) The code was incorrect: in the unusual case where a symbol has multiple
+dnl different AC_DEFINEs, the last one should be honored.
+dnl
+dnl ac_dB works because every line has a space appended. ac_dD reinserts
+dnl the space, because some symbol may have been AC_DEFINEd several times.
+dnl
+dnl The first use of ac_dA has a space prepended, so that the second
+dnl use does not match the initial 's' of $ac_dA.
+[
+uniq confdefs.h |
+ sed -n '
+ t rset
+ :rset
+ s/^[ ]*#[ ]*define[ ][ ]*//
+ t ok
+ d
+ :ok
+ s/[\\&,]/\\&/g
+ s/^\('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/ '"$ac_dA"'\1'"$ac_dB"'\2'"${ac_dC}"'\3'"$ac_dD"'/p
+ s/^\('"$ac_word_re"'\)[ ]*\(.*\)/'"$ac_dA"'\1'"$ac_dB$ac_dC"'\2'"$ac_dD"'/p
+ ' >>conftest.defines
+]
+# Remove the space that was appended to ease matching.
+# Then replace #undef with comments. This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
# on some systems where configure will not decide to define it.
-cat >>conftest.undefs <<\_ACEOF
-[s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,]
-_ACEOF
-
-# Break up conftest.defines because some shells have a limit on the size
-# of here documents, and old seds have small limits too (100 cmds).
-echo ' # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
-echo ' if grep ["^[ ]*#[ ]*define"] $tmp/in >/dev/null; then' >>$CONFIG_STATUS
-echo ' # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
-echo ' :' >>$CONFIG_STATUS
-rm -f conftest.tail
-while grep . conftest.defines >/dev/null
+# (The regexp can be short, since the line contains either #define or #undef.)
+echo 's/ $//
+[s,^[ #]*u.*,/* & */,]' >>conftest.defines
+
+# Break up conftest.defines:
+dnl If we cared only about not exceeding line count limits, we would use this:
+dnl ac_max_sed_lines=m4_eval(_AC_SED_CMD_LIMIT - 3)
+dnl But in practice this can generate scripts that contain too many bytes;
+dnl and this can cause obscure 'sed' failures, e.g.,
+dnl http://lists.gnu.org/archive/html/bug-coreutils/2006-05/msg00127.html
+dnl So instead, we use the following, which is about half the size we'd like:
+ac_max_sed_lines=50
+dnl In the future, let's use awk or sh instead of sed to do substitutions,
+dnl since we have so many problems with sed.
+
+# First sed command is: sed -f defines.sed $ac_file_inputs >"$tmp/out1"
+# Second one is: sed -f defines.sed "$tmp/out1" >"$tmp/out2"
+# Third one will be: sed -f defines.sed "$tmp/out2" >"$tmp/out1"
+# et cetera.
+ac_in='$ac_file_inputs'
+ac_out='"$tmp/out1"'
+ac_nxt='"$tmp/out2"'
+
+while :
do
- # Write a limited-size here document to $tmp/defines.sed.
- echo ' cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
- # Speed up: don't consider the non `#define' lines.
- echo ['/^[ ]*#[ ]*define/!b'] >>$CONFIG_STATUS
- # Work around the forget-to-reset-the-flag bug.
- echo 't clr' >>$CONFIG_STATUS
- echo ': clr' >>$CONFIG_STATUS
- sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
+ # Write a here document:
+ dnl Quote, for the `[ ]' and `define'.
+[ cat >>$CONFIG_STATUS <<_ACEOF
+ # First, check the format of the line:
+ cat >"\$tmp/defines.sed" <<\\CEOF
+/^[ ]*#[ ]*undef[ ][ ]*$ac_word_re[ ]*\$/b def
+/^[ ]*#[ ]*define[ ][ ]*$ac_word_re[( ]/b def
+b
+:def
+_ACEOF]
+ sed ${ac_max_sed_lines}q conftest.defines >>$CONFIG_STATUS
echo 'CEOF
- sed -f $tmp/defines.sed $tmp/in >$tmp/out
- rm -f $tmp/in
- mv $tmp/out $tmp/in
-' >>$CONFIG_STATUS
- sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
+ sed -f "$tmp/defines.sed"' "$ac_in >$ac_out" >>$CONFIG_STATUS
+ ac_in=$ac_out; ac_out=$ac_nxt; ac_nxt=$ac_in
+ sed 1,${ac_max_sed_lines}d conftest.defines >conftest.tail
+ grep . conftest.tail >/dev/null || break
rm -f conftest.defines
mv conftest.tail conftest.defines
done
-rm -f conftest.defines
-echo ' fi # grep' >>$CONFIG_STATUS
-echo >>$CONFIG_STATUS
-
-# Break up conftest.undefs because some shells have a limit on the size
-# of here documents, and old seds have small limits too (100 cmds).
-echo ' # Handle all the #undef templates' >>$CONFIG_STATUS
-rm -f conftest.tail
-while grep . conftest.undefs >/dev/null
-do
- # Write a limited-size here document to $tmp/undefs.sed.
- echo ' cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
- # Speed up: don't consider the non `#undef'
- echo ['/^[ ]*#[ ]*undef/!b'] >>$CONFIG_STATUS
- # Work around the forget-to-reset-the-flag bug.
- echo 't clr' >>$CONFIG_STATUS
- echo ': clr' >>$CONFIG_STATUS
- sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
- echo 'CEOF
- sed -f $tmp/undefs.sed $tmp/in >$tmp/out
- rm -f $tmp/in
- mv $tmp/out $tmp/in
-' >>$CONFIG_STATUS
- sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
- rm -f conftest.undefs
- mv conftest.tail conftest.undefs
-done
-rm -f conftest.undefs
+rm -f conftest.defines conftest.tail
dnl Now back to your regularly scheduled config.status.
+echo "ac_result=$ac_in" >>$CONFIG_STATUS
cat >>$CONFIG_STATUS <<\_ACEOF
- # Let's still pretend it is `configure' which instantiates (i.e., don't
- # use $as_me), people would be surprised to read:
- # /* config.h. Generated by config.status. */
- if test x"$ac_file" = x-; then
- echo "/* Generated by configure. */" >$tmp/config.h
- else
- echo "/* $ac_file. Generated by configure. */" >$tmp/config.h
- fi
- cat $tmp/in >>$tmp/config.h
- rm -f $tmp/in
if test x"$ac_file" != x-; then
- if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
+ echo "/* $configure_input */" >"$tmp/config.h"
+ cat "$ac_result" >>"$tmp/config.h"
+ if diff $ac_file "$tmp/config.h" >/dev/null 2>&1; then
AC_MSG_NOTICE([$ac_file is unchanged])
else
- ac_dir=`AS_DIRNAME(["$ac_file"])`
- AS_MKDIR_P(["$ac_dir"])
rm -f $ac_file
- mv $tmp/config.h $ac_file
+ mv "$tmp/config.h" $ac_file
fi
else
- cat $tmp/config.h
- rm -f $tmp/config.h
+ echo "/* $configure_input */"
+ cat "$ac_result"
fi
+ rm -f "$tmp/out[12]"
dnl If running for Automake, be ready to perform additional
dnl commands to set up the timestamp files.
m4_ifdef([_AC_AM_CONFIG_HEADER_HOOK],
[_AC_AM_CONFIG_HEADER_HOOK([$ac_file])
])dnl
-m4_ifset([AC_LIST_HEADERS_COMMANDS],
-[ # Run the commands associated with the file.
- case $ac_file in
-AC_LIST_HEADERS_COMMANDS()dnl
- esac
-])dnl
-done
-_ACEOF
-])# _AC_OUTPUT_HEADERS
+])# _AC_OUTPUT_HEADER
## --------------------- ##
-# _AC_CONFIG_LINK(DEST:SOURCE, [COMMANDS])
-# ----------------------------------------
-# See below.
-m4_define([_AC_CONFIG_LINK],
-[_AC_CONFIG_UNIQUE([$1])dnl
-m4_append([AC_LIST_LINKS], [ $1])dnl
-_AC_CONFIG_DEPENDENCIES([$1])dnl
-m4_bmatch([$1], [^\.:\| \.:], [m4_fatal([$0: invalid destination: `.'])])dnl
-dnl Register the commands
-m4_ifval([$2],
-[m4_append([AC_LIST_LINKS_COMMANDS],
-[ ]m4_bpatsubst([$1], [:.*])[ ) $2 ;;
-])])dnl
-])
-
# AC_CONFIG_LINKS(DEST:SOURCE..., [COMMANDS], [INIT-CMDS])
# --------------------------------------------------------
# Specify that config.status should establish a (symbolic if possible)
# link from TOP_SRCDIR/SOURCE to TOP_SRCDIR/DEST.
# Reject DEST=., because it is makes it hard for ./config.status
# to guess the links to establish (`./config.status .').
-AC_DEFUN([AC_CONFIG_LINKS],
-[AC_FOREACH([AC_File], [$1], [_AC_CONFIG_LINK(m4_defn([AC_File]), [$2])])dnl
-_AC_CONFIG_COMMANDS_INIT([$3])dnl
-ac_config_links="$ac_config_links m4_normalize([$1])"
-])
-
-
-# Initialize the list.
-m4_define([AC_LIST_LINKS])
-m4_define([AC_LIST_LINKS_COMMANDS])
+#
+AC_DEFUN([AC_CONFIG_LINKS], [_AC_CONFIG_FOOS([LINKS], $@)])
# AC_LINK_FILES(SOURCE..., DEST...)
# interest in creating config links with literal values, no special
# mechanism is implemented to handle them.
#
-# _AC_LINK_CNT is used to be robust to multiple calls.
+# _AC_LINK_FILES_CNT is used to be robust to multiple calls.
AU_DEFUN([AC_LINK_FILES],
[m4_if($#, 2, ,
[m4_fatal([$0: incorrect number of arguments])])dnl
+m4_define_default([_AC_LINK_FILES_CNT], 0)dnl
m4_define([_AC_LINK_FILES_CNT], m4_incr(_AC_LINK_FILES_CNT))dnl
ac_sources="$1"
ac_dests="$2"
done
AC_CONFIG_LINKS($[ac_config_links_]_AC_LINK_FILES_CNT)dnl
],
-[
- It is technically impossible to `autoupdate' cleanly from AC_LINK_FILES
- to AC_CONFIG_FILES. `autoupdate' provides a functional but inelegant
- update, you should probably tune the result yourself.])# AC_LINK_FILES
+[It is technically impossible to `autoupdate' cleanly from AC_LINK_FILES
+to AC_CONFIG_LINKS. `autoupdate' provides a functional but inelegant
+update, you should probably tune the result yourself.])# AC_LINK_FILES
-# Initialize.
-AU_DEFUN([_AC_LINK_FILES_CNT], 0)
-
-# _AC_OUTPUT_LINKS
-# ----------------
-# This is a subroutine of AC_OUTPUT.
-#
-# It has to send itself into $CONFIG_STATUS (eg, via here documents).
-# Upon exit, no here document shall be opened.
-m4_define([_AC_OUTPUT_LINKS],
-[cat >>$CONFIG_STATUS <<\_ACEOF
-
-#
-# CONFIG_LINKS section.
-#
-
-dnl Here we use : instead of .. because if AC_LINK_FILES was used
-dnl with empty parameters (as in gettext.m4), then we obtain here
-dnl `:', which we want to skip. So let's keep a single exception: `:'.
-for ac_file in : $CONFIG_LINKS; do test "x$ac_file" = x: && continue
- ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
- ac_source=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
+# _AC_OUTPUT_LINK
+# ---------------
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
+m4_define([_AC_OUTPUT_LINK],
+[
+ #
+ # CONFIG_LINK
+ #
- AC_MSG_NOTICE([linking $srcdir/$ac_source to $ac_dest])
+ AC_MSG_NOTICE([linking $srcdir/$ac_source to $ac_file])
- if test ! -r $srcdir/$ac_source; then
+ if test ! -r "$srcdir/$ac_source"; then
AC_MSG_ERROR([$srcdir/$ac_source: file not found])
fi
- rm -f $ac_dest
-
- # Make relative symlinks.
- ac_dest_dir=`AS_DIRNAME(["$ac_dest"])`
- AS_MKDIR_P(["$ac_dest_dir"])
- _AC_SRCPATHS(["$ac_dest_dir"])
+ rm -f "$ac_file"
+ # Try a relative symlink, then a hard link, then a copy.
case $srcdir in
[[\\/$]]* | ?:[[\\/]]* ) ac_rel_source=$srcdir/$ac_source ;;
- *) ac_rel_source=$ac_top_builddir$srcdir/$ac_source ;;
+ *) ac_rel_source=$ac_top_build_prefix$srcdir/$ac_source ;;
esac
+ ln -s "$ac_rel_source" "$ac_file" 2>/dev/null ||
+ ln "$srcdir/$ac_source" "$ac_file" 2>/dev/null ||
+ cp -p "$srcdir/$ac_source" "$ac_file" ||
+ AC_MSG_ERROR([cannot link or copy $srcdir/$ac_source to $ac_file])
+])# _AC_OUTPUT_LINK
- # Try a symlink, then a hard link, then a copy.
- ln -s $ac_rel_source $ac_dest 2>/dev/null ||
- ln $srcdir/$ac_source $ac_dest 2>/dev/null ||
- cp -p $srcdir/$ac_source $ac_dest ||
- AC_MSG_ERROR([cannot link or copy $srcdir/$ac_source to $ac_dest])
-m4_ifset([AC_LIST_LINKS_COMMANDS],
-[ # Run the commands associated with the file.
- case $ac_file in
-AC_LIST_LINKS_COMMANDS()dnl
- esac
-])dnl
-done
-_ACEOF
-])# _AC_OUTPUT_LINKS
+## ------------------------ ##
+## Configuration commands. ##
+## ------------------------ ##
-## --------------------- ##
-## Configuration files. ##
-## --------------------- ##
+# AC_CONFIG_COMMANDS(NAME...,[COMMANDS], [INIT-CMDS])
+# ---------------------------------------------------
+#
+# Specify additional commands to be run by config.status. This
+# commands must be associated with a NAME, which should be thought
+# as the name of a file the COMMANDS create.
+#
+AC_DEFUN([AC_CONFIG_COMMANDS], [_AC_CONFIG_FOOS([COMMANDS], $@)])
-# _AC_CONFIG_FILE(FILE..., [COMMANDS])
-# ------------------------------------
-# See below.
-m4_define([_AC_CONFIG_FILE],
-[_AC_CONFIG_UNIQUE([$1])dnl
-m4_append([AC_LIST_FILES], [ $1])dnl
-_AC_CONFIG_DEPENDENCIES([$1])dnl
-dnl Register the commands.
-m4_ifval([$2],
-[m4_append([AC_LIST_FILES_COMMANDS],
-[ ]m4_bpatsubst([$1], [:.*])[ ) $2 ;;
-])])dnl
-])
-# AC_CONFIG_FILES(FILE..., [COMMANDS], [INIT-CMDS])
-# -------------------------------------------------
-# Specify output files, as with AC_OUTPUT, i.e., files that are
-# configured with AC_SUBST. Associate the COMMANDS to each FILE,
-# i.e., when config.status creates FILE, run COMMANDS afterwards.
+# AC_OUTPUT_COMMANDS(EXTRA-CMDS, INIT-CMDS)
+# -----------------------------------------
#
-# The commands are stored in a growing string AC_LIST_FILES_COMMANDS
-# which should be used like this:
+# Add additional commands for AC_OUTPUT to put into config.status.
#
-# case $ac_file in
-# AC_LIST_FILES_COMMANDS
-# esac
-AC_DEFUN([AC_CONFIG_FILES],
-[AC_FOREACH([AC_File], [$1], [_AC_CONFIG_FILE(m4_defn([AC_File]), [$2])])dnl
-_AC_CONFIG_COMMANDS_INIT([$3])dnl
-ac_config_files="$ac_config_files m4_normalize([$1])"
+# This macro is an obsolete version of AC_CONFIG_COMMANDS. The only
+# difficulty in mapping AC_OUTPUT_COMMANDS to AC_CONFIG_COMMANDS is
+# to give a unique key. The scheme we have chosen is `default-1',
+# `default-2' etc. for each call.
+#
+# Unfortunately this scheme is fragile: bad things might happen
+# if you update an included file and configure.ac: you might have
+# clashes :( On the other hand, I'd like to avoid weird keys (e.g.,
+# depending upon __file__ or the pid).
+AU_DEFUN([AC_OUTPUT_COMMANDS],
+[m4_define_default([_AC_OUTPUT_COMMANDS_CNT], 0)dnl
+m4_define([_AC_OUTPUT_COMMANDS_CNT], m4_incr(_AC_OUTPUT_COMMANDS_CNT))dnl
+dnl Double quoted since that was the case in the original macro.
+AC_CONFIG_COMMANDS([default-]_AC_OUTPUT_COMMANDS_CNT, [[$1]], [[$2]])dnl
])
-# Initialize the lists.
-m4_define([AC_LIST_FILES])
-m4_define([AC_LIST_FILES_COMMANDS])
-
+# _AC_OUTPUT_COMMAND
+# ------------------
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
+m4_define([_AC_OUTPUT_COMMAND],
+[ AC_MSG_NOTICE([executing $ac_file commands])
+])
-# _AC_OUTPUT_FILES
-# ----------------
-# Do the variable substitutions to create the Makefiles or whatever.
-# This is a subroutine of AC_OUTPUT.
-#
-# It has to send itself into $CONFIG_STATUS (eg, via here documents).
-# Upon exit, no here document shall be opened.
-m4_define([_AC_OUTPUT_FILES],
-[cat >>$CONFIG_STATUS <<_ACEOF
-
-#
-# CONFIG_FILES section.
-#
-# No need to generate the scripts if there are no CONFIG_FILES.
-# This happens for instance when ./config.status config.h
-if test -n "\$CONFIG_FILES"; then
- # Protect against being on the right side of a sed subst in config.status.
-dnl Please, pay attention that this sed code depends a lot on the shape
-dnl of the sed commands issued by AC_SUBST. So if you change one, change
-dnl the other too.
-[ sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
- s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF]
-dnl These here document variables are unquoted when configure runs
-dnl but quoted when config.status runs, so variables are expanded once.
-dnl Insert the sed substitutions of variables.
-m4_ifdef([_AC_SUBST_VARS],
- [AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_VARS]),
-[s,@AC_Var@,$AC_Var,;t t
-])])dnl
-m4_ifdef([_AC_SUBST_FILES],
- [AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_FILES]),
-[/@AC_Var@/r $AC_Var
-s,@AC_Var@,,;t t
-])])dnl
-CEOF
-_ACEOF
+## -------------------------------------- ##
+## Pre- and post-config.status commands. ##
+## -------------------------------------- ##
- cat >>$CONFIG_STATUS <<\_ACEOF
- # Split the substitutions into bite-sized pieces for seds with
- # small command number limits, like on Digital OSF/1 and HP-UX.
-dnl One cannot portably go further than 100 commands because of HP-UX.
-dnl Here, there are 2 cmd per line, and two cmd are added later.
- ac_max_sed_lines=48
- ac_sed_frag=1 # Number of current file.
- ac_beg=1 # First line for current file.
- ac_end=$ac_max_sed_lines # Line after last line for current file.
- ac_more_lines=:
- ac_sed_cmds=
- while $ac_more_lines; do
- if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
- else
- sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
- fi
- if test ! -s $tmp/subs.frag; then
- ac_more_lines=false
- else
- # The purpose of the label and of the branching condition is to
- # speed up the sed processing (if there are no `@' at all, there
- # is no need to browse any of the substitutions).
- # These are the two extra sed commands mentioned above.
- (echo [':t
- /@[a-zA-Z_][a-zA-Z_0-9]*@/!b'] && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
- if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
- else
- ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
- fi
- ac_sed_frag=`expr $ac_sed_frag + 1`
- ac_beg=$ac_end
- ac_end=`expr $ac_end + $ac_max_sed_lines`
- fi
- done
- if test -z "$ac_sed_cmds"; then
- ac_sed_cmds=cat
- fi
-fi # test -n "$CONFIG_FILES"
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF
-for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case $ac_file in
- - | *:- | *:-:* ) # input from stdin
- cat >$tmp/stdin
- ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- *:* ) ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- * ) ac_file_in=$ac_file.in ;;
- esac
+# AC_CONFIG_COMMANDS_PRE(CMDS)
+# ----------------------------
+# Commands to run right before config.status is created. Accumulates.
+AC_DEFUN([AC_CONFIG_COMMANDS_PRE],
+[m4_append([AC_OUTPUT_COMMANDS_PRE], [$1
+])])
- # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
- ac_dir=`AS_DIRNAME(["$ac_file"])`
- AS_MKDIR_P(["$ac_dir"])
- _AC_SRCPATHS(["$ac_dir"])
-AC_PROVIDE_IFELSE([AC_PROG_INSTALL],
-[ case $INSTALL in
- [[\\/$]]* | ?:[[\\/]]* ) ac_INSTALL=$INSTALL ;;
- *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
- esac
-])dnl
+# AC_OUTPUT_COMMANDS_PRE
+# ----------------------
+# A *variable* in which we append all the actions that must be
+# performed before *creating* config.status. For a start, clean
+# up all the LIBOBJ mess.
+m4_define([AC_OUTPUT_COMMANDS_PRE],
+[_AC_LIBOBJS_NORMALIZE
+])
- # Let's still pretend it is `configure' which instantiates (i.e., don't
- # use $as_me), people would be surprised to read:
- # /* config.h. Generated by config.status. */
- if test x"$ac_file" = x-; then
- configure_input=
- else
- configure_input="$ac_file. "
- fi
- configure_input=$configure_input"Generated from `echo $ac_file_in |
- sed 's,.*/,,'` by configure."
-
- # First look for the input files in the build tree, otherwise in the
- # src tree.
- ac_file_inputs=`IFS=:
- for f in $ac_file_in; do
- case $f in
- -) echo $tmp/stdin ;;
- [[\\/$]]*)
- # Absolute (can't be DOS-style, as IFS=:)
- test -f "$f" || AC_MSG_ERROR([cannot find input file: $f])
- echo "$f";;
- *) # Relative
- if test -f "$f"; then
- # Build tree
- echo "$f"
- elif test -f "$srcdir/$f"; then
- # Source tree
- echo "$srcdir/$f"
- else
- # /dev/null tree
- AC_MSG_ERROR([cannot find input file: $f])
- fi;;
- esac
- done` || AS_EXIT([1])
- if test x"$ac_file" != x-; then
- AC_MSG_NOTICE([creating $ac_file])
- rm -f "$ac_file"
- fi
-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF
-dnl Neutralize VPATH when `$srcdir' = `.'.
- sed "$ac_vpsub
-dnl Shell code in configure.ac might set extrasub.
-dnl FIXME: do we really want to maintain this feature?
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF
-:t
-[/@[a-zA-Z_][a-zA-Z_0-9]*@/!b]
-s,@configure_input@,$configure_input,;t t
-s,@srcdir@,$ac_srcdir,;t t
-s,@abs_srcdir@,$ac_abs_srcdir,;t t
-s,@top_srcdir@,$ac_top_srcdir,;t t
-s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
-s,@builddir@,$ac_builddir,;t t
-s,@abs_builddir@,$ac_abs_builddir,;t t
-s,@top_builddir@,$ac_top_builddir,;t t
-s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
-AC_PROVIDE_IFELSE([AC_PROG_INSTALL], [s,@INSTALL@,$ac_INSTALL,;t t
-])dnl
-dnl The parens around the eval prevent an "illegal io" in Ultrix sh.
-" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
- rm -f $tmp/stdin
-dnl This would break Makefile dependencies.
-dnl if diff $ac_file $tmp/out >/dev/null 2>&1; then
-dnl echo "$ac_file is unchanged"
-dnl else
-dnl rm -f $ac_file
-dnl mv $tmp/out $ac_file
-dnl fi
- if test x"$ac_file" != x-; then
- mv $tmp/out $ac_file
- else
- cat $tmp/out
- rm -f $tmp/out
- fi
+# AC_CONFIG_COMMANDS_POST(CMDS)
+# -----------------------------
+# Commands to run after config.status was created. Accumulates.
+AC_DEFUN([AC_CONFIG_COMMANDS_POST],
+[m4_append([AC_OUTPUT_COMMANDS_POST], [$1
+])])
-m4_ifset([AC_LIST_FILES_COMMANDS],
-[ # Run the commands associated with the file.
- case $ac_file in
-AC_LIST_FILES_COMMANDS()dnl
- esac
-])dnl
-done
-_ACEOF
-])# _AC_OUTPUT_FILES
+# Initialize.
+m4_define([AC_OUTPUT_COMMANDS_POST])
# AC_CONFIG_SUBDIRS(DIR ...)
# --------------------------
# We define two variables:
-# - ac_subdirs_all
-# is built in the `default' section, and should contain *all*
-# the arguments of AC_CONFIG_SUBDIRS. It is used for --help=recursive.
+# - _AC_LIST_SUBDIRS
+# A statically built list, should contain *all* the arguments of
+# AC_CONFIG_SUBDIRS. The final value is assigned to ac_subdirs_all in
+# the `default' section, and used for --help=recursive.
+# It is also used in _AC_CONFIG_UNIQUE.
# It makes no sense for arguments which are sh variables.
# - subdirs
-# which is built at runtime, so some of these dirs might not be
+# Shell variable built at runtime, so some of these dirs might not be
# included, if for instance the user refused a part of the tree.
# This is used in _AC_OUTPUT_SUBDIRS.
-# _AC_LIST_SUBDIRS is used only for _AC_CONFIG_UNIQUE.
AC_DEFUN([AC_CONFIG_SUBDIRS],
-[_AC_CONFIG_UNIQUE([$1])dnl
-AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-m4_append([_AC_LIST_SUBDIRS], [ $1])dnl
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+m4_foreach_w([_AC_Sub], [$1],
+ [_AC_CONFIG_UNIQUE([SUBDIRS],
+ m4_bpatsubst(m4_defn([_AC_Sub]), [:.*]))])dnl
+m4_append([_AC_LIST_SUBDIRS], [$1], [
+])dnl
AS_LITERAL_IF([$1], [],
- [AC_DIAGNOSE(syntax, [$0: you should use literals])])
-m4_divert_text([DEFAULTS],
- [ac_subdirs_all="$ac_subdirs_all m4_normalize([$1])"])
-AC_SUBST(subdirs, "$subdirs $1")dnl
+ [AC_DIAGNOSE([syntax], [$0: you should use literals])])dnl
+AC_SUBST([subdirs], ["$subdirs m4_normalize([$1])"])dnl
])
-# Initialize the list.
-m4_define([_AC_LIST_SUBDIRS])
-
# _AC_OUTPUT_SUBDIRS
# ------------------
# Remove --cache-file and --srcdir arguments so they do not pile up.
ac_sub_configure_args=
ac_prev=
- for ac_arg in $ac_configure_args; do
+ eval "set x $ac_configure_args"
+ shift
+ for ac_arg
+ do
if test -n "$ac_prev"; then
ac_prev=
continue
ac_prev=prefix ;;
-prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
;;
- *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
+ *)
+ case $ac_arg in
+ *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
esac
done
# Always prepend --prefix to ensure using the same prefix
# in subdir configurations.
- ac_sub_configure_args="--prefix=$prefix $ac_sub_configure_args"
+ ac_arg="--prefix=$prefix"
+ case $ac_arg in
+ *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ ac_sub_configure_args="'$ac_arg' $ac_sub_configure_args"
+
+ # Pass --silent
+ if test "$silent" = yes; then
+ ac_sub_configure_args="--silent $ac_sub_configure_args"
+ fi
ac_popdir=`pwd`
for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
# Do not complain, so a configure script can configure whichever
# parts of a large source tree are present.
- test -d $srcdir/$ac_dir || continue
+ test -d "$srcdir/$ac_dir" || continue
- AC_MSG_NOTICE([configuring in $ac_dir])
+ ac_msg="=== configuring in $ac_dir (`pwd`/$ac_dir)"
+ _AS_ECHO_LOG([$ac_msg])
+ _AS_ECHO([$ac_msg])
AS_MKDIR_P(["$ac_dir"])
- _AC_SRCPATHS(["$ac_dir"])
+ _AC_SRCDIRS(["$ac_dir"])
- cd $ac_dir
+ cd "$ac_dir"
# Check for guested configure; otherwise get Cygnus style configure.
- if test -f $ac_srcdir/configure.gnu; then
- ac_sub_configure="$SHELL '$ac_srcdir/configure.gnu'"
- elif test -f $ac_srcdir/configure; then
- ac_sub_configure="$SHELL '$ac_srcdir/configure'"
- elif test -f $ac_srcdir/configure.in; then
- ac_sub_configure=$ac_configure
+ if test -f "$ac_srcdir/configure.gnu"; then
+ ac_sub_configure=$ac_srcdir/configure.gnu
+ elif test -f "$ac_srcdir/configure"; then
+ ac_sub_configure=$ac_srcdir/configure
+ elif test -f "$ac_srcdir/configure.in"; then
+ # This should be Cygnus configure.
+ ac_sub_configure=$ac_aux_dir/configure
else
AC_MSG_WARN([no configuration information is in $ac_dir])
ac_sub_configure=
# Make the cache file name correct relative to the subdirectory.
case $cache_file in
[[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
- *) # Relative path.
- ac_sub_cache_file=$ac_top_builddir$cache_file ;;
+ *) # Relative name.
+ ac_sub_cache_file=$ac_top_build_prefix$cache_file ;;
esac
- AC_MSG_NOTICE([running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
+ AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
# The eval makes quoting arguments work.
- eval $ac_sub_configure $ac_sub_configure_args \
- --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir ||
+ eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
+ --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir])
fi
## -------------------------- ##
-# autoupdate::AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS])
-# -------------------------------------------------------------------
+# AU::AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS])
+# -----------------------------------------------------------
#
# If there are arguments given to AC_OUTPUT, dispatch them to the
# proper modern macros.
[m4_ifvaln([$1],
[AC_CONFIG_FILES([$1])])dnl
m4_ifvaln([$2$3],
- [AC_CONFIG_COMMANDS(default, [[$2]], [[$3]])])dnl
+ [AC_CONFIG_COMMANDS(default, [$2], [$3])])dnl
[AC_OUTPUT]])
# -------------------------------------------------------
# The big finish.
# Produce config.status, config.h, and links; and configure subdirs.
-# The CONFIG_HEADERS are defined in the m4 variable AC_LIST_HEADERS.
-# Pay special attention not to have too long here docs: some old
-# shells die. Unfortunately the limit is not known precisely...
+#
m4_define([AC_OUTPUT],
[dnl Dispatch the extra arguments to their native macros.
-m4_ifval([$1],
- [AC_CONFIG_FILES([$1])])dnl
-m4_ifval([$2$3],
- [AC_CONFIG_COMMANDS(default, [$2], [$3])])dnl
+m4_ifvaln([$1],
+ [AC_CONFIG_FILES([$1])])dnl
+m4_ifvaln([$2$3],
+ [AC_CONFIG_COMMANDS(default, [$2], [$3])])dnl
m4_ifval([$1$2$3],
[AC_DIAGNOSE([obsolete],
[$0 should be used without arguments.
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-# VPATH may cause trouble with some makes, so we remove $(srcdir),
-# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
-# trailing colons and then remove the whole line if VPATH becomes empty
-# (actually we leave an empty line to preserve line numbers).
-if test "x$srcdir" = x.; then
- ac_vpsub=['/^[ ]*VPATH[ ]*=/{
-s/:*\$(srcdir):*/:/;
-s/:*\${srcdir}:*/:/;
-s/:*@srcdir@:*/:/;
-s/^\([^=]*=[ ]*\):*/\1/;
-s/:*$//;
-s/^[^=]*=[ ]*$//;
-}']
-fi
-
-m4_ifset([AC_LIST_HEADERS], [DEFS=-DHAVE_CONFIG_H], [AC_OUTPUT_MAKE_DEFS()])
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)], [DEFS=-DHAVE_CONFIG_H], [AC_OUTPUT_MAKE_DEFS()])
dnl Commands to run before creating config.status.
AC_OUTPUT_COMMANDS_PRE()dnl
# shells die. Unfortunately the limit is not known precisely...
m4_define([_AC_OUTPUT_CONFIG_STATUS],
[AC_MSG_NOTICE([creating $CONFIG_STATUS])
+dnl AS_MESSAGE_LOG_FD is not available yet:
+m4_rename([AS_MESSAGE_LOG_FD], [_AC_save_AS_MESSAGE_LOG_FD])dnl
cat >$CONFIG_STATUS <<_ACEOF
#! $SHELL
# Generated by $as_me.
_AS_PREPARE
exec AS_MESSAGE_FD>&1
-# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# Save the log message, to keep $[0] and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
-# values after options handling. Logging --version etc. is OK.
-exec AS_MESSAGE_LOG_FD>>config.log
-{
- echo
- AS_BOX([Running $as_me.])
-} >&AS_MESSAGE_LOG_FD
-cat >&AS_MESSAGE_LOG_FD <<_CSEOF
-
+# values after options handling.
+ac_log="
This file was extended by m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])dnl
$as_me[]m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]), which was
generated by m4_PACKAGE_STRING. Invocation command line was
CONFIG_COMMANDS = $CONFIG_COMMANDS
$ $[0] $[@]
-_CSEOF
-echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&AS_MESSAGE_LOG_FD
-echo >&AS_MESSAGE_LOG_FD
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
# Files that config.status was made for.
-if test -n "$ac_config_files"; then
- echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
-fi
-
-if test -n "$ac_config_headers"; then
- echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
-fi
-
-if test -n "$ac_config_links"; then
- echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
-fi
+m4_ifdef([_AC_SEEN_CONFIG(FILES)],
+[config_files="$ac_config_files"
+])dnl
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)],
+[config_headers="$ac_config_headers"
+])dnl
+m4_ifdef([_AC_SEEN_CONFIG(LINKS)],
+[config_links="$ac_config_links"
+])dnl
+m4_ifdef([_AC_SEEN_CONFIG(COMMANDS)],
+[config_commands="$ac_config_commands"
+])dnl
-if test -n "$ac_config_commands"; then
- echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
-fi
+_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
-
ac_cs_usage="\
\`$as_me' instantiates files from templates according to the
current configuration.
Usage: $[0] [[OPTIONS]] [[FILE]]...
-h, --help print this help, then exit
- -V, --version print version number, then exit
+ -V, --version print version number and configuration settings, then exit
-q, --quiet do not print progress messages
-d, --debug don't remove temporary files
--recheck update $as_me by reconfiguring in the same conditions
-m4_ifset([AC_LIST_FILES],
+m4_ifdef([_AC_SEEN_CONFIG(FILES)],
[[ --file=FILE[:TEMPLATE]
instantiate the configuration file FILE
]])dnl
-m4_ifset([AC_LIST_HEADERS],
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)],
[[ --header=FILE[:TEMPLATE]
instantiate the configuration header FILE
]])dnl
-m4_ifset([AC_LIST_FILES],
+m4_ifdef([_AC_SEEN_CONFIG(FILES)],
[Configuration files:
$config_files
])dnl
-m4_ifset([AC_LIST_HEADERS],
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)],
[Configuration headers:
$config_headers
])dnl
-m4_ifset([AC_LIST_LINKS],
+m4_ifdef([_AC_SEEN_CONFIG(LINKS)],
[Configuration links:
$config_links
])dnl
-m4_ifset([AC_LIST_COMMANDS],
+m4_ifdef([_AC_SEEN_CONFIG(COMMANDS)],
[Configuration commands:
$config_commands
])dnl
Report bugs to <bug-autoconf@gnu.org>."
-_ACEOF
+_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
ac_cs_version="\\
m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.status[]dnl
m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
configured by $[0], generated by m4_PACKAGE_STRING,
- with options \\"`echo "$ac_configure_args" | sed 's/[[\\""\`\$]]/\\\\&/g'`\\"
+ with options \\"`echo "$ac_configure_args" | sed 's/^ //; s/[[\\""\`\$]]/\\\\&/g'`\\"
-Copyright (C) 2003 Free Software Foundation, Inc.
+Copyright (C) 2006 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."
-srcdir=$srcdir
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
AC_PROVIDE_IFELSE([AC_PROG_INSTALL],
-[dnl Leave those double quotes here: this $INSTALL is evaluated in a
-dnl here document, which might result in `INSTALL=/bin/install -c'.
-INSTALL="$INSTALL"
+[INSTALL='$INSTALL'
+])dnl
+AC_PROVIDE_IFELSE([AC_PROG_MKDIR_P],
+[MKDIR_P='$MKDIR_P'
])dnl
_ACEOF
do
case $[1] in
--*=*)
- ac_option=`expr "x$[1]" : 'x\([[^=]]*\)='`
- ac_optarg=`expr "x$[1]" : 'x[[^=]]*=\(.*\)'`
+ ac_option=`expr "X$[1]" : 'X\([[^=]]*\)='`
+ ac_optarg=`expr "X$[1]" : 'X[[^=]]*=\(.*\)'`
ac_shift=:
;;
- -*)
+ *)
ac_option=$[1]
ac_optarg=$[2]
ac_shift=shift
;;
- *) # This is not an option, so the user has probably given explicit
- # arguments.
- ac_option=$[1]
- ac_need_defaults=false;;
esac
case $ac_option in
# Handling of the options.
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF
-recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
ac_cs_recheck=: ;;
- --version | --vers* | -V )
- echo "$ac_cs_version"; exit 0 ;;
- --he | --h)
- # Conflict between --help and --header
- AC_MSG_ERROR([ambiguous option: $[1]
-Try `$[0] --help' for more information.]);;
- --help | --hel | -h )
- echo "$ac_cs_usage"; exit 0 ;;
- --debug | --d* | -d )
+ --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+ echo "$ac_cs_version"; exit ;;
+ --debug | --debu | --deb | --de | --d | -d )
debug=: ;;
+m4_ifdef([_AC_SEEN_CONFIG(FILES)], [dnl
--file | --fil | --fi | --f )
$ac_shift
CONFIG_FILES="$CONFIG_FILES $ac_optarg"
ac_need_defaults=false;;
+])dnl
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)], [dnl
--header | --heade | --head | --hea )
$ac_shift
CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
ac_need_defaults=false;;
+ --he | --h)
+ # Conflict between --help and --header
+ AC_MSG_ERROR([ambiguous option: $[1]
+Try `$[0] --help' for more information.]);;
+], [ --he | --h |])dnl
+ --help | --hel | -h )
+ echo "$ac_cs_usage"; exit ;;
-q | -quiet | --quiet | --quie | --qui | --qu | --q \
| -silent | --silent | --silen | --sile | --sil | --si | --s)
ac_cs_silent=: ;;
-*) AC_MSG_ERROR([unrecognized option: $[1]
Try `$[0] --help' for more information.]) ;;
- *) ac_config_targets="$ac_config_targets $[1]" ;;
+ *) ac_config_targets="$ac_config_targets $[1]"
+ ac_need_defaults=false ;;
esac
shift
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
+dnl Check this before opening the log, to avoid a bug on MinGW,
+dnl which prohibits the recursive instance from truncating an open log.
if \$ac_cs_recheck; then
- echo "running $SHELL $[0] " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&AS_MESSAGE_FD
- exec $SHELL $[0] $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+ echo "running CONFIG_SHELL=$SHELL $SHELL $[0] "$ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&AS_MESSAGE_FD
+ CONFIG_SHELL=$SHELL
+ export CONFIG_SHELL
+ exec $SHELL "$[0]"$ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
fi
_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+dnl Open the log:
+m4_rename([_AC_save_AS_MESSAGE_LOG_FD], [AS_MESSAGE_LOG_FD])dnl
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+ echo
+ AS_BOX([Running $as_me.])
+ echo "$ac_log"
+} >&AS_MESSAGE_LOG_FD
-dnl We output the INIT-CMDS first for obvious reasons :)
-m4_ifset([_AC_OUTPUT_COMMANDS_INIT],
-[cat >>$CONFIG_STATUS <<_ACEOF
-#
-# INIT-COMMANDS section.
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+m4_ifdef([_AC_OUTPUT_COMMANDS_INIT],
+[#
+# INIT-COMMANDS
#
+_AC_OUTPUT_COMMANDS_INIT
+])dnl
+_ACEOF
-_AC_OUTPUT_COMMANDS_INIT()
-_ACEOF])
-
-
-dnl Issue this section only if there were actually config files.
-dnl This checks if one of AC_LIST_HEADERS, AC_LIST_FILES, AC_LIST_COMMANDS,
-dnl or AC_LIST_LINKS is set.
-m4_ifval(AC_LIST_HEADERS()AC_LIST_LINKS()AC_LIST_FILES()AC_LIST_COMMANDS(),
-[
cat >>$CONFIG_STATUS <<\_ACEOF
+
+# Handling of arguments.
for ac_config_target in $ac_config_targets
do
- case "$ac_config_target" in
- # Handling of arguments.
-AC_FOREACH([AC_File], AC_LIST_FILES,
-[ "m4_bpatsubst(AC_File, [:.*])" )dnl
- CONFIG_FILES="$CONFIG_FILES AC_File" ;;
-])dnl
-AC_FOREACH([AC_File], AC_LIST_LINKS,
-[ "m4_bpatsubst(AC_File, [:.*])" )dnl
- CONFIG_LINKS="$CONFIG_LINKS AC_File" ;;
-])dnl
-AC_FOREACH([AC_File], AC_LIST_COMMANDS,
-[ "m4_bpatsubst(AC_File, [:.*])" )dnl
- CONFIG_COMMANDS="$CONFIG_COMMANDS AC_File" ;;
-])dnl
-AC_FOREACH([AC_File], AC_LIST_HEADERS,
-[ "m4_bpatsubst(AC_File, [:.*])" )dnl
- CONFIG_HEADERS="$CONFIG_HEADERS AC_File" ;;
-])dnl
+ case $ac_config_target in
+m4_ifdef([_AC_LIST_TAGS], [_AC_LIST_TAGS])
*) AC_MSG_ERROR([invalid argument: $ac_config_target]);;
esac
done
+m4_ifdef([_AC_SEEN_CONFIG(ANY)], [_AC_OUTPUT_MAIN_LOOP])[]dnl
+
+AS_EXIT(0)
+_ACEOF
+chmod +x $CONFIG_STATUS
+])# _AC_OUTPUT_CONFIG_STATUS
+
+# _AC_OUTPUT_MAIN_LOOP
+# --------------------
+# The main loop in $CONFIG_STATUS.
+#
+# This macro is expanded inside a here document. If the here document is
+# closed, it has to be reopened with "cat >>$CONFIG_STATUS <<\_ACEOF".
+#
+AC_DEFUN([_AC_OUTPUT_MAIN_LOOP],
+[
# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used. Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
-m4_ifset([AC_LIST_FILES],
+m4_ifdef([_AC_SEEN_CONFIG(FILES)],
[ test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
])dnl
-m4_ifset([AC_LIST_HEADERS],
+m4_ifdef([_AC_SEEN_CONFIG(HEADERS)],
[ test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
])dnl
-m4_ifset([AC_LIST_LINKS],
+m4_ifdef([_AC_SEEN_CONFIG(LINKS)],
[ test "${CONFIG_LINKS+set}" = set || CONFIG_LINKS=$config_links
])dnl
-m4_ifset([AC_LIST_COMMANDS],
+m4_ifdef([_AC_SEEN_CONFIG(COMMANDS)],
[ test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
])dnl
fi
# Have a temporary directory for convenience. Make it in the build tree
-# simply because there is no reason to put it here, and in addition,
+# simply because there is no reason against having it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
-AS_TMPDIR([confstat], [.])
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+ tmp=
+ trap 'exit_status=$?
+ { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
+' 0
+ trap 'AS_EXIT([1])' 1 2 13 15
+}
+dnl The comment above AS_TMPDIR says at most 4 chars are allowed.
+AS_TMPDIR([conf], [.])
+
+m4_ifdef([_AC_SEEN_CONFIG(FILES)], [_AC_OUTPUT_FILES_PREPARE])[]dnl
+
+for ac_tag in[]dnl
+ m4_ifdef([_AC_SEEN_CONFIG(FILES)], [:F $CONFIG_FILES])[]dnl
+ m4_ifdef([_AC_SEEN_CONFIG(HEADERS)], [:H $CONFIG_HEADERS])[]dnl
+ m4_ifdef([_AC_SEEN_CONFIG(LINKS)], [:L $CONFIG_LINKS])[]dnl
+ m4_ifdef([_AC_SEEN_CONFIG(COMMANDS)], [:C $CONFIG_COMMANDS])
+do
+ case $ac_tag in
+ :[[FHLC]]) ac_mode=$ac_tag; continue;;
+ esac
+ case $ac_mode$ac_tag in
+ :[[FHL]]*:*);;
+ :L* | :C*:*) AC_MSG_ERROR([Invalid tag $ac_tag.]);;
+ :[[FH]]-) ac_tag=-:-;;
+ :[[FH]]*) ac_tag=$ac_tag:$ac_tag.in;;
+ esac
+ ac_save_IFS=$IFS
+ IFS=:
+ set x $ac_tag
+ IFS=$ac_save_IFS
+ shift
+ ac_file=$[1]
+ shift
-_ACEOF
-])[]dnl m4_ifval
+ case $ac_mode in
+ :L) ac_source=$[1];;
+ :[[FH]])
+ ac_file_inputs=
+ for ac_f
+ do
+ case $ac_f in
+ -) ac_f="$tmp/stdin";;
+ *) # Look for the file first in the build tree, then in the source tree
+ # (if the path is not absolute). The absolute path cannot be DOS-style,
+ # because $ac_f cannot contain `:'.
+ test -f "$ac_f" ||
+ case $ac_f in
+ [[\\/$]]*) false;;
+ *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+ esac ||
+ AC_MSG_ERROR([cannot find input file: $ac_f]);;
+ esac
+ ac_file_inputs="$ac_file_inputs $ac_f"
+ done
+
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ configure_input="Generated from "`IFS=:
+ echo $[*] | sed ['s|^[^:]*/||;s|:[^:]*/|, |g']`" by configure."
+ if test x"$ac_file" != x-; then
+ configure_input="$ac_file. $configure_input"
+ AC_MSG_NOTICE([creating $ac_file])
+ fi
+
+ case $ac_tag in
+ *:-:* | *:-) cat >"$tmp/stdin";;
+ esac
+ ;;
+ esac
-dnl The following four sections are in charge of their own here
-dnl documenting into $CONFIG_STATUS.
-m4_ifset([AC_LIST_FILES], [_AC_OUTPUT_FILES()])dnl
-m4_ifset([AC_LIST_HEADERS], [_AC_OUTPUT_HEADERS()])dnl
-m4_ifset([AC_LIST_LINKS], [_AC_OUTPUT_LINKS()])dnl
-m4_ifset([AC_LIST_COMMANDS], [_AC_OUTPUT_COMMANDS()])dnl
+ ac_dir=`AS_DIRNAME(["$ac_file"])`
+ AS_MKDIR_P(["$ac_dir"])
+ _AC_SRCDIRS(["$ac_dir"])
-cat >>$CONFIG_STATUS <<\_ACEOF
+ case $ac_mode in
+ m4_ifdef([_AC_SEEN_CONFIG(FILES)], [:F)_AC_OUTPUT_FILE ;;])
+ m4_ifdef([_AC_SEEN_CONFIG(HEADERS)], [:H)_AC_OUTPUT_HEADER ;;])
+ m4_ifdef([_AC_SEEN_CONFIG(LINKS)], [:L)_AC_OUTPUT_LINK ;;])
+ m4_ifdef([_AC_SEEN_CONFIG(COMMANDS)], [:C)_AC_OUTPUT_COMMAND ;;])
+ esac
-AS_EXIT(0)
-_ACEOF
-chmod +x $CONFIG_STATUS
-])# _AC_OUTPUT_CONFIG_STATUS
+dnl Some shells don't like empty case/esac
+m4_ifdef([_AC_LIST_TAG_COMMANDS], [
+ case $ac_file$ac_mode in
+_AC_LIST_TAG_COMMANDS
+ esac
+])dnl
+done # for ac_tag
+
+])# _AC_OUTPUT_MAIN_LOOP
# AC_OUTPUT_MAKE_DEFS
# Set the DEFS variable to the -D options determined earlier.
# This is a subroutine of AC_OUTPUT.
# It is called inside configure, outside of config.status.
-# Using a here document instead of a string reduces the quoting nightmare.
m4_define([AC_OUTPUT_MAKE_DEFS],
[[# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
#
# If the first sed substitution is executed (which looks for macros that
-# take arguments), then we branch to the quote section. Otherwise,
+# take arguments), then branch to the quote section. Otherwise,
# look for a macro that doesn't take arguments.
-cat >confdef2opt.sed <<\_ACEOF
+ac_script='
t clear
-: clear
-s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\),-D\1=\2,g
+:clear
+s/^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\)/-D\1=\2/g
t quote
-s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\),-D\1=\2,g
+s/^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)/-D\1=\2/g
t quote
-d
-: quote
-s,[ `~#$^&*(){}\\|;'"<>?],\\&,g
-s,\[,\\&,g
-s,\],\\&,g
-s,\$,$$,g
-p
-_ACEOF
-# We use echo to avoid assuming a particular line-breaking character.
-# The extra dot is to prevent the shell from consuming trailing
-# line-breaks from the sub-command output. A line-break within
-# single-quotes doesn't work because, if this script is created in a
-# platform that uses two characters for line-breaks (e.g., DOS), tr
-# would break.
-ac_LF_and_DOT=`echo; echo .`
-DEFS=`sed -n -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'`
-rm -f confdef2opt.sed
+b any
+:quote
+s/[ `~#$^&*(){}\\|;'\''"<>?]/\\&/g
+s/\[/\\&/g
+s/\]/\\&/g
+s/\$/$$/g
+H
+:any
+${
+ g
+ s/^\n//
+ s/\n/ /g
+ p
+}
+'
+DEFS=`sed -n "$ac_script" confdefs.h`
]])# AC_OUTPUT_MAKE_DEFS
projects / wxWidgets.git / commitdiff
