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1# Configure template for GNU Bison. -*-Autoconf-*-
2#
34136e65 3# Copyright (C) 2001-2012 Free Software Foundation, Inc.
2c8a9dfa 4#
f16b0819 5# This program is free software: you can redistribute it and/or modify
342b8b6e 6# it under the terms of the GNU General Public License as published by
f16b0819 7# the Free Software Foundation, either version 3 of the License, or
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8# (at your option) any later version.
9#
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.
14#
15# You should have received a copy of the GNU General Public License
f16b0819 16# along with this program. If not, see <http://www.gnu.org/licenses/>.
342b8b6e 17
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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
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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.
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23AC_PREREQ([2.68])
24m4_pattern_forbid([^gl_[A-Z]])
342b8b6e 25
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26AC_INIT([GNU Bison],
27 m4_esyscmd([build-aux/git-version-gen .tarball-version]),
28 [bug-bison@gnu.org])
34136e65 29AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
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30AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
31 [The copyright year for this package])
a005a9c4 32
c8775f93 33AC_CONFIG_AUX_DIR([build-aux])
1f65350a 34AC_CONFIG_MACRO_DIR([m4])
342b8b6e 35
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36# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
37#
38# http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
39#
40# To avoid 1.11, we make 1.11.1 the minimum version.
41#
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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.
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48AM_INIT_AUTOMAKE([1.11.1 dist-xz nostdinc
49 color-tests parallel-tests
50 silent-rules]
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51 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
52 [gnu], [gnits]))
da1eb15b 53AM_SILENT_RULES([yes])
3b2942e6 54AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
1f65350a 55
f377f69f 56# Checks for the compiler.
cf2a5f7c 57AC_PROG_CC_STDC
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58
59# Gnulib (early checks).
60gl_EARLY
61
1890a2a8 62AC_ARG_ENABLE([gcc-warnings],
630f5212 63[ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)],
1890a2a8 64[case $enable_gcc_warnings in
630f5212 65 yes|no) ;;
1890a2a8 66 *) AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);;
1e24cc5b 67 esac],
36021b23 68 [enable_gcc_warnings=no])
1890a2a8 69if test "$enable_gcc_warnings" = yes; then
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70 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
71 AC_SUBST([WERROR_CFLAGS])
72 gl_WARN_ADD([-Wall])
73 gl_WARN_ADD([-Wextra -Wno-sign-compare])
74 gl_WARN_ADD([-Wcast-align])
75 gl_WARN_ADD([-Wcast-qual])
76 gl_WARN_ADD([-Wformat])
77 gl_WARN_ADD([-Wpointer-arith])
78 gl_WARN_ADD([-Wwrite-strings])
79 AC_SUBST([WARN_CXXFLAGS], [$WARN_CFLAGS])
504f20f7 80 # The following warnings are not suitable for C++.
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81 gl_WARN_ADD([-Wbad-function-cast])
82 gl_WARN_ADD([-Wmissing-declarations])
83 gl_WARN_ADD([-Wmissing-prototypes])
84 gl_WARN_ADD([-Wshadow])
85 gl_WARN_ADD([-Wstrict-prototypes])
86 AC_SUBST([WARN_CFLAGS])
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87 # Warnings for the test suite only.
88 gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
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89 gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
90 AC_SUBST([WARN_CXXFLAGS_TEST], ["$WARN_CXXFLAGS $WARN_CFLAGS_TEST"])
91 AC_SUBST([WARN_CFLAGS_TEST], ["$WARN_CFLAGS $WARN_CFLAGS_TEST"])
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92fi
93
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94BISON_TEST_FOR_WORKING_C_COMPILER
95
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96AC_ARG_ENABLE([yacc],
97 [AC_HELP_STRING([--disable-yacc],
98 [do not build a yacc command or an -ly library])],
99 , [enable_yacc=yes])
100case $enable_yacc in
101yes)
0305d25e 102 YACC_SCRIPT=src/yacc
feda5527 103 YACC_LIBRARY=lib/liby.a;;
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104*)
105 YACC_SCRIPT=
106 YACC_LIBRARY=;;
107esac
108AC_SUBST([YACC_SCRIPT])
109AC_SUBST([YACC_LIBRARY])
110
f377f69f 111# Checks for programs.
41cce2f6 112AC_PROG_LEX
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113AC_PROG_YACC
114AC_PROG_RANLIB
62c99cf4 115AC_PROG_GNU_M4
f377f69f 116AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
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117AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
118supports -g, otherwise to "".])
727a1401 119AM_MISSING_PROG([HELP2MAN], [help2man])
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120AC_PATH_PROG([XSLTPROC], [xsltproc])
121AC_SUBST([XSLTPROC])
f2939cd6 122
e79137ac 123# Checks for header files.
1f65350a 124AC_CHECK_HEADERS_ONCE([locale.h])
f2939cd6 125
e79137ac 126# Checks for compiler characteristics.
dd877b0c 127AC_C_INLINE
f2939cd6 128
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129# Gnulib (later checks). Putting them here rather than right after
130# gl_EARLY avoids some redundant checks.
131gl_INIT
132
e79137ac 133# Checks for library functions.
1f65350a 134AC_CHECK_FUNCS_ONCE([setlocale])
342b8b6e 135AM_WITH_DMALLOC
2593afab 136BISON_PREREQ_SUBPIPE
1509d42f 137BISON_PREREQ_TIMEVAR
f2939cd6 138
3b2942e6 139# Gettext.
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140# We use gnulib, which is only guaranteed to work properly with the
141# latest Gettext.
91a2b9b1 142AM_GNU_GETTEXT([external], [need-ngettext])
e35bc778 143AM_GNU_GETTEXT_VERSION([0.18])
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144BISON_I18N
145
146# Internationalized parsers.
147AC_CONFIG_FILES([runtime-po/Makefile.in])
148# Autoconf macros for packages using internationalized parsers.
149aclocaldir='${datadir}/aclocal'
150AC_SUBST([aclocaldir])
bbcb769c 151
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152# Create the benchmark script.
153AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
154
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155# Initialize the test suite.
156AC_CONFIG_TESTDIR(tests)
d4977ce3 157AC_CONFIG_FILES([tests/atlocal])
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158AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
159AC_CHECK_PROGS([VALGRIND], [valgrind])
504f20f7 160AC_PROG_CXX
209ea708 161BISON_TEST_FOR_WORKING_CXX_COMPILER
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162AM_MISSING_PROG([AUTOM4TE], [autom4te])
163# Needed by tests/atlocal.in.
164AC_SUBST([GCC])
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165AC_SUBST([O0CFLAGS], [`echo $CFLAGS | sed 's/-O[[0-9]] *//'`])
166AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
f377f69f 167
1979121c 168gt_JAVACOMP([1.3], [1.4])
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169gt_JAVAEXEC
170
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171# We use gnulib, but from lib/local.mk instead of lib/Makefile.am.
172# So prefix paths with lib/. See also etc/prefix-gnulib-mk.
173gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
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174# Listing the names of the variables to prefix is error-prone.
175# Rather, adjust all the AC_SUBST variables whose name ends in '_H',
176# and whose content ends in '.h'.
177for ac_var in $ac_subst_vars
feda5527 178do
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179 eval "ac_val=\$$ac_var"
180 case $ac_var=$ac_val in
181 (*_H=*.h) eval "$ac_var=lib/\$$ac_var";;
182 esac
feda5527 183done
8fa36911 184AC_CONFIG_FILES([Makefile
e9690142 185 po/Makefile.in
e9690142 186 doc/yacc.1])
927f7817 187AC_OUTPUT