1 # Configure template for GNU Bison. -*-Autoconf-*-
3 # Copyright (C) 2001, 2002 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 2 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, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 # We need a recent Autoconf to run a recent Autotest.
23 AC_INIT([GNU Bison], [1.75a], [bug-bison@gnu.org])
24 AC_CONFIG_AUX_DIR(config)
26 AM_INIT_AUTOMAKE([1.7 check-news readme-alpha dist-bzip2])
27 AC_CONFIG_HEADERS([config.h:config.hin])
29 # Checks for the compiler.
31 # Remove with Automake 1.8.
36 AC_ARG_ENABLE(gcc-warnings,
37 [ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)],
38 [case "${enableval}" in
40 *) AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
43 if test "${enableval}" = yes; then
44 BISON_WARNING(-Werror)
45 AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
49 BISON_WARNING(-Wbad-function-cast)
50 BISON_WARNING(-Wcast-align)
51 BISON_WARNING(-Wcast-qual)
52 BISON_WARNING(-Wformat)
53 BISON_WARNING(-Wmissing-declarations)
54 BISON_WARNING(-Wmissing-prototypes)
55 BISON_WARNING(-Wnested-externs)
56 BISON_WARNING(-Wshadow)
57 BISON_WARNING(-Wstrict-prototypes)
58 BISON_WARNING(-Wwrite-strings)
61 # Checks for programs.
66 if test x"$ac_cv_prog_gnu_m4" != xyes; then
67 AC_MSG_ERROR([GNU M4 1.4 is required])
69 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
71 # Checks for header files.
73 AC_CHECK_HEADERS([ctype.h locale.h memory.h stdlib.h string.h unistd.h])
75 # Checks for compiler characteristics.
78 # Checks for library functions.
83 AC_CHECK_FUNCS(setlocale)
84 AC_CHECK_DECLS([free, getenv, getopt,
85 stpcpy, strchr, strspn, strnlen,
86 malloc, memchr, memrchr])
87 AC_REPLACE_FUNCS(memchr memrchr \
88 strchr stpcpy strrchr strspn strtol)
99 AM_GNU_GETTEXT(external, need-ngettext)
100 AM_GNU_GETTEXT_VERSION(0.11.5)
102 # Initialize the test suite.
103 AC_CONFIG_TESTDIR(tests)
104 AC_CONFIG_FILES([tests/Makefile tests/atlocal])
105 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
106 AC_CHECK_PROGS([VALGRIND], [valgrind])
107 AC_CHECK_PROGS([GXX], [g++])
108 AM_MISSING_PROG([AUTOM4TE], [autom4te])
109 # Needed by tests/atlocal.in.
111 O0CFLAGS=`echo $CFLAGS | sed 's/-O[0-9] *//'`
114 AC_CONFIG_FILES([Makefile
118 lib/Makefile src/Makefile doc/Makefile