X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/62a9592d3d3149aae90533a685f9a8a35cd630f5..aa3bcdf35e6e0daab858e528cfd84042a962bb0c:/configure.ac?ds=sidebyside

diff --git a/configure.ac b/configure.ac
index e89f9e64..39d42578 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,11 +1,10 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001-2011 Free Software Foundation, Inc.
 #
-# This program is free software; you can redistribute it and/or modify
+# 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 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
@@ -14,50 +13,77 @@
 # 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
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# We use macros like AC_CHECK_HEADERS_ONCE, so we need Autoconf 2.60 or better.
-AC_PREREQ(2.60)
+# In order for some versions of Sun Studio to compile our C++ test cases
+# correctly, we need Autoconf 2.64 or better to handle the restrict
+# keyword in at least string.h from gnulib.
+AC_PREREQ(2.64)
+
+AC_INIT([GNU Bison],
+        m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+        [bug-bison@gnu.org])
+AC_DEFINE([PACKAGE_COPYRIGHT_YEAR], [2011],
+          [The copyright year for this package])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2011])
 
-AC_INIT([GNU Bison], [2.3+], [bug-bison@gnu.org])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
-# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
-AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2])
-AC_CONFIG_HEADERS([config.h:config.hin])
-
-gl_USE_SYSTEM_EXTENSIONS
+# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
+#
+#   http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
+#
+# To avoid 1.11, we make 1.11.1 the minimum version.
+#
+# We want gnits strictness only when rolling a stable release.  For
+# release candidates, we use version strings like 2.4.3_rc1, but gnits
+# doesn't like that, so we let the underscore disable gnits.  Between
+# releases, we want to be able run make dist without being required to
+# add a bogus NEWS entry.  In that case, the version string
+# automatically contains a dash, which we also let disable gnits.
+AM_INIT_AUTOMAKE([1.11.1 dist-bzip2]
+                 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
+                           [gnu], [gnits]))
+AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.
-AC_PROG_CC
-AM_PROG_CC_STDC
+AC_PROG_CC_STDC
+
+# Gnulib (early checks).
+gl_EARLY
+
 AC_ARG_ENABLE(gcc-warnings,
 [  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
 [case "${enableval}" in
    yes|no) ;;
    *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
  esac],
-              [enableval=no])
+	      [enableval=no])
 if test "${enableval}" = yes; then
-  gl_WARNING_CFLAGS([-Werror])
-  AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
-  WARNING_CFLAGS=
-  gl_WARNING_CFLAGS([-W])
-  gl_WARNING_CFLAGS([-Wall])
-  gl_WARNING_CFLAGS([-Wcast-align])
-  gl_WARNING_CFLAGS([-Wcast-qual])
-  gl_WARNING_CFLAGS([-Wformat])
-  gl_WARNING_CFLAGS([-Wwrite-strings])
-  AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
+  gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
+  AC_SUBST([WERROR_CFLAGS])
+  gl_WARN_ADD([-Wall])
+  gl_WARN_ADD([-Wextra -Wno-sign-compare])
+  gl_WARN_ADD([-Wcast-align])
+  gl_WARN_ADD([-Wcast-qual])
+  gl_WARN_ADD([-Wformat])
+  gl_WARN_ADD([-Wpointer-arith])
+  gl_WARN_ADD([-Wwrite-strings])
+  AC_SUBST([WARN_CXXFLAGS], [$WARN_CFLAGS])
   # The following warnings are not suitable for C++.
-  gl_WARNING_CFLAGS([-Wbad-function-cast])
-  gl_WARNING_CFLAGS([-Wmissing-declarations])
-  gl_WARNING_CFLAGS([-Wmissing-prototypes])
-  gl_WARNING_CFLAGS([-Wshadow])
-  gl_WARNING_CFLAGS([-Wstrict-prototypes])
+  gl_WARN_ADD([-Wbad-function-cast])
+  gl_WARN_ADD([-Wmissing-declarations])
+  gl_WARN_ADD([-Wmissing-prototypes])
+  gl_WARN_ADD([-Wshadow])
+  gl_WARN_ADD([-Wstrict-prototypes])
+  AC_SUBST([WARN_CFLAGS])
+  # Warnings for the test suite only.
+  gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
+  WARN_CXXFLAGS_TEST="$WARN_CXXFLAGS $WARN_CFLAGS_TEST"
+  WARN_CFLAGS_TEST="$WARN_CFLAGS $WARN_CFLAGS_TEST"
+  AC_SUBST([WARN_CXXFLAGS_TEST])
+  AC_SUBST([WARN_CFLAGS_TEST])
   AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
 fi
 
@@ -69,8 +95,8 @@ AC_ARG_ENABLE([yacc],
   , [enable_yacc=yes])
 case $enable_yacc in
 yes)
-  YACC_SCRIPT=yacc
-  YACC_LIBRARY=liby.a;;
+  YACC_SCRIPT=src/yacc
+  YACC_LIBRARY=lib/liby.a;;
 *)
   YACC_SCRIPT=
   YACC_LIBRARY=;;
@@ -82,29 +108,35 @@ AC_SUBST([YACC_LIBRARY])
 AC_PROG_LEX
 AC_PROG_YACC
 AC_PROG_RANLIB
-BISON_PROG_GNU_M4
-if test x"$ac_cv_prog_gnu_m4" != xyes; then
-  AC_MSG_ERROR([GNU M4 1.4 is required])
-fi
+AC_PROG_GNU_M4
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
+AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
+supports -g, otherwise to "".])
+AM_MISSING_PROG([HELP2MAN], [help2man])
+AC_PATH_PROG([XSLTPROC], [xsltproc])
+AC_SUBST([XSLTPROC])
 
 # Checks for header files.
 AC_CHECK_HEADERS_ONCE([locale.h])
-AM_STDBOOL_H
 
 # Checks for compiler characteristics.
 AC_C_INLINE
 
+# Gnulib (later checks).  Putting them here rather than right after
+# gl_EARLY avoids some redundant checks.
+gl_INIT
+
 # Checks for library functions.
 AC_CHECK_FUNCS_ONCE([setlocale])
 AM_WITH_DMALLOC
 BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
-# gnulib and gettext.
-GNULIB_AUTOCONF_SNIPPET
-# We've never tested with gettext versions before 0.15, so play it safe.
-AM_GNU_GETTEXT_VERSION([0.15])
+# Gettext.
+# We use gnulib, which is only guaranteed to work properly with the
+# latest Gettext.
+AM_GNU_GETTEXT([external], [need-ngettext])
+AM_GNU_GETTEXT_VERSION([0.18])
 BISON_I18N
 
 # Internationalized parsers.
@@ -113,9 +145,12 @@ AC_CONFIG_FILES([runtime-po/Makefile.in])
 aclocaldir='${datadir}/aclocal'
 AC_SUBST([aclocaldir])
 
+# Create the benchmark script.
+AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
+
 # Initialize the test suite.
 AC_CONFIG_TESTDIR(tests)
-AC_CONFIG_FILES([tests/Makefile tests/atlocal])
+AC_CONFIG_FILES([tests/atlocal])
 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
 AC_CHECK_PROGS([VALGRIND], [valgrind])
 AC_PROG_CXX
@@ -123,16 +158,23 @@ BISON_TEST_FOR_WORKING_CXX_COMPILER
 AM_MISSING_PROG([AUTOM4TE], [autom4te])
 # Needed by tests/atlocal.in.
 AC_SUBST([GCC])
-O0CFLAGS=`echo $CFLAGS | sed 's/-O[[0-9]] *//'`
-AC_SUBST([O0CFLAGS])
-O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`
-AC_SUBST([O0CXXFLAGS])
+AC_SUBST([O0CFLAGS],   [`echo $CFLAGS   | sed 's/-O[[0-9]] *//'`])
+AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
+
+gt_JAVACOMP([1.3], [1.4])
+gt_JAVAEXEC
 
+# We use gnulib, but from lib/local.mk instead of lib/Makefile.am.
+# So prefix paths with lib/.  See also etc/prefix-gnulib-mk.
+gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
+for ac_var in ALLOCA_H ERRNO_H FCNTL_H GETOPT_H INTTYPES_H \
+              LIBUNISTRING_UNITYPES_H LIBUNISTRING_UNIWIDTH_H \
+              STDBOOL_H STDINT_H SYS_WAIT_H WCHAR_H WCTYPE_H
+do
+  eval "test x\$$ac_var = x || $ac_var=lib/\$$ac_var"
+done
 AC_CONFIG_FILES([Makefile
-                 build-aux/Makefile
-                 po/Makefile.in
-                 data/Makefile
-		 examples/Makefile
-		    examples/calc++/Makefile
-                 lib/Makefile src/Makefile doc/Makefile])
+		 po/Makefile.in
+		 examples/calc++/Makefile
+		 doc/yacc.1])
 AC_OUTPUT