1 # Configure template for GNU Bison. -*-Autoconf-*-
3 # Copyright (C) 2001-2012 Free Software Foundation, Inc.
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # In order for some versions of Sun Studio to compile our C++ test cases
19 # correctly, we need Autoconf 2.64 or better to handle the restrict
20 # keyword in at least string.h from gnulib. We need Autoconf 2.68 or
21 # better to avoid a typo in the `configure --help' entry for the YACC
22 # environment variable.
24 m4_pattern_forbid([^gl_[A-Z]])
27 m4_esyscmd([build-aux/git-version-gen .tarball-version]),
29 AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
30 AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
31 [The copyright year for this package])
33 AC_CONFIG_AUX_DIR([build-aux])
34 AC_CONFIG_MACRO_DIR([m4])
36 # Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
38 # http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
40 # To avoid 1.11, we make 1.11.1 the minimum version.
42 # We want gnits strictness only when rolling a stable release. For
43 # release candidates, we use version strings like 2.4.3_rc1, but gnits
44 # doesn't like that, so we let the underscore disable gnits. Between
45 # releases, we want to be able run make dist without being required to
46 # add a bogus NEWS entry. In that case, the version string
47 # automatically contains a dash, which we also let disable gnits.
48 AM_INIT_AUTOMAKE([1.11.1 dist-xz nostdinc silent-rules]
49 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
51 AM_SILENT_RULES([yes])
52 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
54 # Checks for the compiler.
57 # Gnulib (early checks).
60 AC_ARG_ENABLE([gcc-warnings],
61 [ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)],
62 [case $enable_gcc_warnings in
64 *) AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);;
66 [enable_gcc_warnings=no])
67 if test "$enable_gcc_warnings" = yes; then
68 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
69 AC_SUBST([WERROR_CFLAGS])
71 gl_WARN_ADD([-Wextra -Wno-sign-compare])
72 gl_WARN_ADD([-Wcast-align])
73 gl_WARN_ADD([-Wcast-qual])
74 gl_WARN_ADD([-Wformat])
75 gl_WARN_ADD([-Wpointer-arith])
76 gl_WARN_ADD([-Wwrite-strings])
77 AC_SUBST([WARN_CXXFLAGS], [$WARN_CFLAGS])
78 # The following warnings are not suitable for C++.
79 gl_WARN_ADD([-Wbad-function-cast])
80 gl_WARN_ADD([-Wmissing-declarations])
81 gl_WARN_ADD([-Wmissing-prototypes])
82 gl_WARN_ADD([-Wshadow])
83 gl_WARN_ADD([-Wstrict-prototypes])
84 AC_SUBST([WARN_CFLAGS])
85 # Warnings for the test suite only.
86 gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
87 gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
88 AC_SUBST([WARN_CXXFLAGS_TEST], ["$WARN_CXXFLAGS $WARN_CFLAGS_TEST"])
89 AC_SUBST([WARN_CFLAGS_TEST], ["$WARN_CFLAGS $WARN_CFLAGS_TEST"])
92 BISON_TEST_FOR_WORKING_C_COMPILER
95 [AC_HELP_STRING([--disable-yacc],
96 [do not build a yacc command or an -ly library])],
101 YACC_LIBRARY=lib/liby.a;;
106 AC_SUBST([YACC_SCRIPT])
107 AC_SUBST([YACC_LIBRARY])
109 # Checks for programs.
114 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
115 AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
116 supports -g, otherwise to "".])
117 AM_MISSING_PROG([HELP2MAN], [help2man])
118 AC_PATH_PROG([XSLTPROC], [xsltproc])
121 # Checks for header files.
122 AC_CHECK_HEADERS_ONCE([locale.h])
124 # Checks for compiler characteristics.
127 # Gnulib (later checks). Putting them here rather than right after
128 # gl_EARLY avoids some redundant checks.
131 # Checks for library functions.
132 AC_CHECK_FUNCS_ONCE([setlocale])
138 # We use gnulib, which is only guaranteed to work properly with the
140 AM_GNU_GETTEXT([external], [need-ngettext])
141 AM_GNU_GETTEXT_VERSION([0.18])
144 # Internationalized parsers.
145 AC_CONFIG_FILES([runtime-po/Makefile.in])
146 # Autoconf macros for packages using internationalized parsers.
147 aclocaldir='${datadir}/aclocal'
148 AC_SUBST([aclocaldir])
150 # Create the benchmark script.
151 AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
153 # Initialize the test suite.
154 AC_CONFIG_TESTDIR(tests)
155 AC_CONFIG_FILES([tests/atlocal])
156 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
157 AC_CHECK_PROGS([VALGRIND], [valgrind])
159 BISON_TEST_FOR_WORKING_CXX_COMPILER
160 AM_MISSING_PROG([AUTOM4TE], [autom4te])
161 # Needed by tests/atlocal.in.
163 AC_SUBST([O0CFLAGS], [`echo $CFLAGS | sed 's/-O[[0-9]] *//'`])
164 AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
166 gt_JAVACOMP([1.3], [1.4])
169 # We use gnulib, but from lib/local.mk instead of lib/Makefile.am.
170 # So prefix paths with lib/. See also etc/prefix-gnulib-mk.
171 gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
172 # Listing the names of the variables to prefix is error-prone.
173 # Rather, adjust all the AC_SUBST variables whose name ends in '_H',
174 # and whose content ends in '.h'.
175 for ac_var in $ac_subst_vars
177 eval "ac_val=\$$ac_var"
178 case $ac_var=$ac_val in
179 (*_H=*.h) eval "$ac_var=lib/\$$ac_var";;
182 AC_CONFIG_FILES([Makefile