lalr1.cc: check (and fix) %initial-action exception safety

[bison.git] / configure.ac

# Configure template for GNU Bison.                   -*-Autoconf-*-
#
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# 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],
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AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
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AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])

# 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
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AM_INIT_AUTOMAKE([1.11.1 dist-xz silent-rules]
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AM_SILENT_RULES([yes])
AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h])

# Checks for the compiler.
AC_PROG_CC_STDC
AC_PROG_CXX

# Gnulib (early checks).
gl_EARLY

AC_ARG_ENABLE([gcc-warnings],
[  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
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              [enable_gcc_warnings=no])
if test "$enable_gcc_warnings" = yes; then
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  warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes
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fi

BISON_TEST_FOR_WORKING_C_COMPILER
BISON_TEST_FOR_WORKING_CXX_COMPILER

AC_ARG_ENABLE([yacc],
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case $enable_yacc in
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*)
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esac
AC_SUBST([YACC_SCRIPT])
AC_SUBST([YACC_LIBRARY])

# Checks for programs.
AC_PROG_LEX
$LEX_IS_FLEX || AC_MSG_ERROR([Flex is required])
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AC_PROG_RANLIB
AC_PROG_GNU_M4
AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
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AC_PATH_PROG([PERL], [perl])
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# Checks for header files.
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# Checks for compiler characteristics.
AC_C_INLINE

# Gnulib (later checks).  Putting them here rather than right after
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gl_INIT

# Checks for library functions.
AC_CHECK_FUNCS_ONCE([setlocale])
AM_WITH_DMALLOC
BISON_PREREQ_TIMEVAR

# Gettext.
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AM_GNU_GETTEXT([external], [need-ngettext])
AM_GNU_GETTEXT_VERSION([0.18])
BISON_I18N

# Internationalized parsers.
AC_CONFIG_FILES([runtime-po/Makefile.in])
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# Create the benchmark script.
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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
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AM_MISSING_PROG([AUTOM4TE], [autom4te])
# Needed by tests/atlocal.in.
AC_SUBST([GCC])

gt_JAVACOMP([1.3])
gt_JAVAEXEC

AC_CONFIG_FILES([Makefile
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		 data/Makefile
		 etc/Makefile
		 examples/Makefile
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		 doc/Makefile
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AC_OUTPUT