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* src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug.
[bison.git] / configure.ac
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1# Configure template for GNU Bison. -*-Autoconf-*-
2#
1f65350a 3# Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
2c8a9dfa 4#
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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 2 of the License, or
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
16# along with this program; if not, write to the Free Software
17# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18# 02111-1307 USA
19
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20# We need a recent Autoconf to avoid the message
21# "autom4te: unknown language: Autoconf-without-aclocal-m4".
22AC_PREREQ(2.58)
342b8b6e 23
41ca2549 24AC_INIT([GNU Bison], [1.875e], [bug-bison@gnu.org])
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25AC_CONFIG_AUX_DIR([config])
26AC_CONFIG_MACRO_DIR([m4])
342b8b6e 27
a5c75d7f 28AM_INIT_AUTOMAKE([1.7 check-news readme-alpha dist-bzip2])
927f7817 29AC_CONFIG_HEADERS([config.h:config.hin])
f2939cd6 30
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31gl_USE_SYSTEM_EXTENSIONS
32
f377f69f 33# Checks for the compiler.
7c4399ed 34AC_PROG_CC
d2729d44 35AM_PROG_CC_STDC
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36AC_ARG_ENABLE(gcc-warnings,
37[ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)],
38[case "${enableval}" in
39 yes|no) ;;
40 *) AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
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41 esac],
42 [enableval=no])
630f5212 43if test "${enableval}" = yes; then
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44 BISON_WARNING(-Werror)
45 AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
46 WARNING_CFLAGS=
630f5212 47 BISON_WARNING(-W)
e476c87d 48 BISON_WARNING(-Wall)
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49 BISON_WARNING(-Wcast-align)
50 BISON_WARNING(-Wcast-qual)
1e3e4bc1 51 BISON_WARNING(-Wformat)
630f5212 52 BISON_WARNING(-Wwrite-strings)
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53 AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
54 # The following warnings are not suitable for C++.
55 BISON_WARNING(-Wbad-function-cast)
56 BISON_WARNING(-Wmissing-declarations)
e476c87d 57 BISON_WARNING(-Wmissing-prototypes)
504f20f7 58 BISON_WARNING(-Wnested-externs)
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59 BISON_WARNING(-Wshadow)
60 BISON_WARNING(-Wstrict-prototypes)
bcb3effb 61 AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
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62fi
63
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64AC_ARG_ENABLE([yacc],
65 [AC_HELP_STRING([--disable-yacc],
66 [do not build a yacc command or an -ly library])],
67 , [enable_yacc=yes])
68case $enable_yacc in
69yes)
70 YACC_SCRIPT=yacc
71 YACC_LIBRARY=liby.a;;
72*)
73 YACC_SCRIPT=
74 YACC_LIBRARY=;;
75esac
76AC_SUBST([YACC_SCRIPT])
77AC_SUBST([YACC_LIBRARY])
78
f377f69f 79# Checks for programs.
41cce2f6 80AC_PROG_LEX
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81AC_PROG_YACC
82AC_PROG_RANLIB
83BISON_PROG_GNU_M4
84if test x"$ac_cv_prog_gnu_m4" != xyes; then
85 AC_MSG_ERROR([GNU M4 1.4 is required])
86fi
87AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
f2939cd6 88
e79137ac 89# Checks for header files.
1f65350a 90AC_CHECK_HEADERS_ONCE([locale.h])
e2527c97 91AM_STDBOOL_H
f2939cd6 92
e79137ac 93# Checks for compiler characteristics.
dd877b0c 94AC_C_INLINE
f2939cd6 95
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96# Checks for types.
97AC_CHECK_TYPES([uintptr_t])
98
e79137ac 99# Checks for library functions.
1f65350a 100AC_CHECK_FUNCS_ONCE([setlocale])
342b8b6e 101AM_WITH_DMALLOC
2593afab 102BISON_PREREQ_SUBPIPE
1509d42f 103BISON_PREREQ_TIMEVAR
f2939cd6 104
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105# gnulib and gettext.
106GNULIB_AUTOCONF_SNIPPET
caa52c10 107AM_GNU_GETTEXT_VERSION([0.11.5])
bbcb769c 108
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109# Initialize the test suite.
110AC_CONFIG_TESTDIR(tests)
111AC_CONFIG_FILES([tests/Makefile tests/atlocal])
112AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
113AC_CHECK_PROGS([VALGRIND], [valgrind])
504f20f7 114AC_PROG_CXX
209ea708 115BISON_TEST_FOR_WORKING_CXX_COMPILER
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116AM_MISSING_PROG([AUTOM4TE], [autom4te])
117# Needed by tests/atlocal.in.
118AC_SUBST([GCC])
119O0CFLAGS=`echo $CFLAGS | sed 's/-O[0-9] *//'`
120AC_SUBST([O0CFLAGS])
121
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122AC_CONFIG_FILES([Makefile
123 config/Makefile
124 po/Makefile.in
125 data/Makefile
1f65350a 126 lib/Makefile src/Makefile doc/Makefile])
927f7817 127AC_OUTPUT