X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3b2942e671eadc31ca5cacf4c2965a1cac4edf04..28126202a52cda40411bc33ed795ceb4cfdd302d:/configure.ac diff --git a/configure.ac b/configure.ac index 79dff3ac..95a1b026 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) 2001-2012 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, @@ -14,57 +13,93 @@ # 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 . + +# 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], + 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], [$PACKAGE_COPYRIGHT_YEAR], + [The copyright year for this package]) -# We use macros like AC_CHECK_HEADERS_ONCE, so we need Autoconf 2.60 or better. -AC_PREREQ(2.60) - -AC_INIT([GNU Bison], [2.3a+], [bug-bison@gnu.org]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_MACRO_DIR([m4]) -# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later. -AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2]) -AC_CONFIG_HEADERS([lib/config.h:lib/config.hin]) +# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here: +# +# http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131 +# +# To avoid 1.11, we make 1.11.1 the minimum version. +# +# We want gnits strictness only when rolling a stable release. For +# release candidates, we use version strings like 2.4.3_rc1, but gnits +# doesn't like that, so we let the underscore disable gnits. Between +# releases, we want to be able run make dist without being required to +# add a bogus NEWS entry. In that case, the version string +# automatically contains a dash, which we also let disable gnits. +AM_INIT_AUTOMAKE([1.11.1 dist-xz nostdinc + color-tests parallel-tests + silent-rules] + m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]], + [gnu], [gnits])) +AM_SILENT_RULES([yes]) +AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h]) # Checks for the compiler. -AC_PROG_CC -AM_PROG_CC_STDC +AC_PROG_CC_STDC +AC_PROG_CXX # Gnulib (early checks). gl_EARLY -AC_ARG_ENABLE(gcc-warnings, +AC_ARG_ENABLE([gcc-warnings], [ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)], -[case "${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 - gl_WARNING_CFLAGS([-Werror]) - AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS]) - WARNING_CFLAGS= - gl_WARNING_CFLAGS([-Wextra -Wno-sign-compare]) - gl_WARNING_CFLAGS([-Wall]) - gl_WARNING_CFLAGS([-Wcast-align]) - gl_WARNING_CFLAGS([-Wcast-qual]) - gl_WARNING_CFLAGS([-Wformat]) - gl_WARNING_CFLAGS([-Wpointer-arith]) - gl_WARNING_CFLAGS([-Wwrite-strings]) - AC_SUBST([WARNING_CXXFLAGS], [$WARNING_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]) - AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.]) + [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]) + 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]) + AC_LANG_POP([C]) + + AC_LANG_PUSH([C++]) + 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]) + AC_LANG_POP([C++]) fi BISON_TEST_FOR_WORKING_C_COMPILER +BISON_TEST_FOR_WORKING_CXX_COMPILER AC_ARG_ENABLE([yacc], [AC_HELP_STRING([--disable-yacc], @@ -72,8 +107,8 @@ AC_ARG_ENABLE([yacc], , [enable_yacc=yes]) case $enable_yacc in yes) - YACC_SCRIPT=yacc - YACC_LIBRARY=liby.a;; + YACC_SCRIPT=src/yacc + YACC_LIBRARY=lib/liby.a;; *) YACC_SCRIPT= YACC_LIBRARY=;; @@ -83,13 +118,20 @@ AC_SUBST([YACC_LIBRARY]) # Checks for programs. AC_PROG_LEX +$LEX_IS_FLEX || AC_MSG_ERROR([Flex is required]) 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], ["$M4_GNU"], [Define to "-g" if GNU M4 +supports -g, otherwise to "".]) +AC_PATH_PROG([PERL], [perl]) +if test -z "$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_CHECK_HEADERS_ONCE([locale.h]) @@ -104,13 +146,13 @@ gl_INIT # Checks for library functions. AC_CHECK_FUNCS_ONCE([setlocale]) AM_WITH_DMALLOC -BISON_PREREQ_SUBPIPE BISON_PREREQ_TIMEVAR # Gettext. -# We've never tested with gettext versions before 0.15, so play it safe. -AM_GNU_GETTEXT([external], [need-formatstring-macros]) -AM_GNU_GETTEXT_VERSION([0.15]) +# 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. @@ -119,26 +161,35 @@ 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 -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 $CXXFLAGS | sed 's/-O[[0-9]] *//'` -AC_SUBST([O0CXXFLAGS]) +gt_JAVACOMP([1.3], [1.4]) +gt_JAVAEXEC + +# We use gnulib, but from lib/local.mk instead of lib/Makefile.am. +# So prefix paths with lib/. See also etc/prefix-gnulib-mk. +gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'` +# Listing the names of the variables to prefix is error-prone. +# Rather, adjust all the AC_SUBST variables whose name ends in '_H', +# and whose content ends in '.h'. +for ac_var in $ac_subst_vars +do + eval "ac_val=\$$ac_var" + case $ac_var=$ac_val in + (*_H=*.h) eval "$ac_var=lib/\$$ac_var";; + esac +done AC_CONFIG_FILES([Makefile - build-aux/Makefile po/Makefile.in - data/Makefile - examples/Makefile - examples/calc++/Makefile - lib/Makefile src/Makefile doc/Makefile]) + doc/yacc.1]) AC_OUTPUT