X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e0a13e7b3043411ba80b578fcf320a98024c376a..5215919366833a0a37bb321189ad9d22398ab260:/configure.ac?ds=sidebyside diff --git a/configure.ac b/configure.ac index 2a2f915a..83e20acb 100644 --- a/configure.ac +++ b/configure.ac @@ -1,10 +1,10 @@ # Configure template for GNU Bison. -*-Autoconf-*- # -# Copyright (C) 2001, 2002 Free Software Foundation, Inc. +# Copyright (C) 2001-2012 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, @@ -13,108 +13,203 @@ # 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., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA +# along with this program. If not, see <http://www.gnu.org/licenses/>. -# We need a recent Autoconf to run a recent Autotest. -AC_PREREQ(2.54) +# 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. We need Autoconf 2.68 or +# better to avoid a typo in the `configure --help' entry for the YACC +# environment variable. +AC_PREREQ([2.68]) +m4_pattern_forbid([^gl_[A-Z]]) -AC_INIT([GNU Bison], [1.49c], [bug-bison@gnu.org]) -AC_CONFIG_AUX_DIR(config) +AC_INIT([GNU Bison], + m4_esyscmd([build-aux/git-version-gen .tarball-version]), + [bug-bison@gnu.org]) +AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012]) +AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR], + [The copyright year for this package]) -AM_INIT_AUTOMAKE -AM_CONFIG_HEADER(config.h:config.hin) +AC_CONFIG_AUX_DIR([build-aux]) +AC_CONFIG_MACRO_DIR([m4]) -# Initialize the test suite. -AC_CONFIG_TESTDIR(tests) -AC_CONFIG_FILES([tests/Makefile tests/atlocal]) -AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison]) -# Needed by tests/atlocal.in. -AC_SUBST([GCC]) +# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here: +# +# http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131 +# +# To avoid 1.11, we make 1.11.1 the minimum version. +# +# We want gnits strictness only when rolling a stable release. For +# release candidates, we use version strings like 2.4.3_rc1, but gnits +# doesn't like that, so we let the underscore disable gnits. Between +# releases, we want to be able run make dist without being required to +# add a bogus NEWS entry. In that case, the version string +# automatically contains a dash, which we also let disable gnits. +AM_INIT_AUTOMAKE([1.11.1 dist-xz silent-rules] + m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]], + [gnu], [gnits])) +AM_SILENT_RULES([yes]) +AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h]) -# Checks for programs. -AC_PROG_CC -AM_PROG_LEX -AC_PROG_YACC -AC_MINIX -AC_ISC_POSIX -AM_PROG_CC_STDC -AC_PROG_RANLIB -AM_MISSING_PROG([AUTOM4TE], [autom4te]) -BISON_PROG_GNU_M4 -if test x"$ac_cv_prog_gnu_m4" != xyes; then - AC_MSG_ERROR([GNU M4 1.4 is required]) -fi -AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.]) +# Checks for the compiler. +AC_PROG_CC_STDC +AC_PROG_CXX -AC_ARG_ENABLE(gcc-warnings, +# Gnulib (early checks). +gl_EARLY + +AC_ARG_ENABLE([gcc-warnings], [ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)], -[case "${enableval}" in +[case $enable_gcc_warnings in yes|no) ;; - *) AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;; + *) AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);; esac], - [enableval=no]) -if test "${enableval}" = yes; then - BISON_WARNING(-Werror) - AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS]) - WARNING_CFLAGS= - BISON_WARNING(-Wall) - BISON_WARNING(-W) - BISON_WARNING(-Wbad-function-cast) - BISON_WARNING(-Wcast-align) - BISON_WARNING(-Wcast-qual) - BISON_WARNING(-Wformat) - BISON_WARNING(-Wmissing-declarations) - BISON_WARNING(-Wmissing-prototypes) - BISON_WARNING(-Wnested-externs) - BISON_WARNING(-Wshadow) - BISON_WARNING(-Wstrict-prototypes) - BISON_WARNING(-Wwrite-strings) + [enable_gcc_warnings=no]) +if test "$enable_gcc_warnings" = yes; then + warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align + -Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings' + warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes + -Wshadow -Wstrict-prototypes' + warn_cxx='-Wnoexcept' + AC_LANG_PUSH([C]) + # Clang supports many of GCC's -W options, but only issues warnings + # on the ones it does not recognize. In that case, gl_WARN_ADD + # thinks the option is supported, and unknown options are then added + # to CFLAGS. But then, when -Werror is added in the test suite for + # instance, the warning about the unknown option turns into an + # error. + # + # This should be addressed by gnulib's gl_WARN_ADD, but in the + # meanwhile, turn warnings about unknown options into errors in + # CFLAGS, and restore CFLAGS after the tests. + save_CFLAGS=$CFLAGS + gl_WARN_ADD([-Werror=unknown-warning-option], [CFLAGS]) + for i in $warn_common $warn_c; + do + gl_WARN_ADD([$i], [WARN_CFLAGS]) + done + gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) + # Warnings for the test suite only. + gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST]) + gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST]) + CFLAGS=$save_CFLAGS + AC_LANG_POP([C]) + + AC_LANG_PUSH([C++]) + save_CXXFLAGS=$CXXFLAGS + gl_WARN_ADD([-Werror=unknown-warning-option], [CXXFLAGS]) + for i in $warn_common $warn_cxx; + do + gl_WARN_ADD([$i], [WARN_CXXFLAGS]) + done + gl_WARN_ADD([-Wzero-as-null-pointer-constant], [WARN_CXXFLAGS], + [AC_LANG_PROGRAM([], [nullptr])]) + gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS]) + # Warnings for the test suite only. + gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST]) + gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST]) + CXXFLAGS=$save_CXXFLAGS + AC_LANG_POP([C++]) fi -# Checks for libraries. -AC_DEFINE([_GNU_SOURCE],1,[Define to 1 for GNU C library extensions.]) +BISON_TEST_FOR_WORKING_C_COMPILER +BISON_TEST_FOR_WORKING_CXX_COMPILER +BISON_C_COMPILER_POSIXLY_CORRECT + +AC_ARG_ENABLE([yacc], + [AC_HELP_STRING([--disable-yacc], + [do not build a yacc command or an -ly library])], + , [enable_yacc=yes]) +case $enable_yacc in +yes) + YACC_SCRIPT=yacc + YACC_LIBRARY=liby.a;; +*) + YACC_SCRIPT= + YACC_LIBRARY=;; +esac +AC_SUBST([YACC_SCRIPT]) +AC_SUBST([YACC_LIBRARY]) + +# Checks for programs. +AM_MISSING_PROG([DOT], [dot]) +AC_PROG_LEX +$LEX_IS_FLEX || AC_MSG_ERROR([Flex is required]) +AC_PROG_YACC +AC_PROG_RANLIB +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 "".]) +AC_PATH_PROG([PERL], [perl]) +if test -z "$PERL"; then + AC_MSG_ERROR([perl not found]) +fi +AM_MISSING_PROG([HELP2MAN], [help2man]) +AC_PATH_PROG([XSLTPROC], [xsltproc]) +AC_SUBST([XSLTPROC]) # Checks for header files. -AC_HEADER_STDC -AC_CHECK_HEADERS([ctype.h locale.h memory.h stdlib.h string.h unistd.h]) +AC_CHECK_HEADERS_ONCE([locale.h]) # Checks for compiler characteristics. -AC_C_CONST AC_C_INLINE -AM_C_PROTOTYPES + +# Gnulib (later checks). Putting them here rather than right after +# gl_EARLY avoids some redundant checks. +gl_INIT # Checks for library functions. -AC_FUNC_ALLOCA -AC_FUNC_OBSTACK -AC_FUNC_ERROR_AT_LINE -AC_FUNC_STRNLEN -UTILS_FUNC_MKSTEMP -AC_CHECK_FUNCS(setlocale) -AC_CHECK_DECLS([getenv, getopt, free, stpcpy, strchr, strspn, strnlen, - malloc, memchr, memrchr]) -AC_REPLACE_FUNCS(stpcpy strchr strspn memchr memrchr) -AC_FUNC_MALLOC -AC_FUNC_REALLOC -jm_PREREQ_QUOTEARG -jm_PREREQ_ERROR -jm_PREREQ_TEMPNAME +AC_CHECK_FUNCS_ONCE([setlocale]) AM_WITH_DMALLOC BISON_PREREQ_TIMEVAR # Gettext. -AM_GNU_GETTEXT(external, need-ngettext) -AM_GNU_GETTEXT_VERSION(0.11.5) - -# This is necessary so that .o files in LIBOBJS are also built via -# the ANSI2KNR-filtering rules. -LIB@&t@OBJS=`echo $LIB@&t@OBJS|sed 's/\.o /\$U.o /g;s/\.o$/\$U.o/'` -AC_SUBST(LIB@&t@OBJS) - -AC_OUTPUT([Makefile - config/Makefile - po/Makefile.in - data/Makefile - lib/Makefile src/Makefile doc/Makefile - m4/Makefile]) +# 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. +AC_CONFIG_FILES([runtime-po/Makefile.in]) +# Autoconf macros for packages using internationalized parsers. +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/bison], [chmod +x tests/bison]) +AC_CHECK_PROGS([VALGRIND], [valgrind]) +case $VALGRIND:$host_os in + '':*) ;; + *:darwin*) + # See README-hacking. + # VALGRIND+=' --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind' + VALGRIND=;; + *:*) + AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"]);; +esac + +AM_MISSING_PROG([AUTOM4TE], [autom4te]) +# Needed by tests/atlocal.in. +AC_SUBST([GCC]) + +gt_JAVACOMP([1.3]) +gt_JAVAEXEC + +AC_CONFIG_FILES([Makefile + build-aux/Makefile + po/Makefile.in + data/Makefile + etc/Makefile + examples/Makefile + examples/calc++/Makefile + lib/Makefile src/Makefile + doc/Makefile + doc/yacc.1]) +AC_OUTPUT