configure.ac

   1 # Configure template for GNU Bison.                   -*-Autoconf-*-
   2 #
   3 # Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   4 #
   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
  20 # This file uses AC_CONFIG_MACRO_DIR, so we need Autoconf 2.58 or better.
  21 # But Autoconf 2.58 has a bug in the way that it generates tests: it
  22 # puts the wrong absolute path names in the tests.  So we need at
  23 # least Autoconf 2.59.
  24 AC_PREREQ(2.59)
  25
  26 AC_INIT([GNU Bison], [2.0a], [bug-bison@gnu.org])
  27 AC_CONFIG_AUX_DIR([config])
  28 AC_CONFIG_MACRO_DIR([m4])
  29
  30 # We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
  31 AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2])
  32 AC_CONFIG_HEADERS([config.h:config.hin])
  33
  34 gl_USE_SYSTEM_EXTENSIONS
  35
  36 # Checks for the compiler.
  37 AC_PROG_CC
  38 AM_PROG_CC_STDC
  39 AC_ARG_ENABLE(gcc-warnings,
  40 [  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
  41 [case "${enableval}" in
  42    yes|no) ;;
  43    *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
  44  esac],
  45               [enableval=no])
  46 if test "${enableval}" = yes; then
  47   BISON_WARNING(-Werror)
  48   AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
  49   WARNING_CFLAGS=
  50   BISON_WARNING(-W)
  51   BISON_WARNING(-Wall)
  52   BISON_WARNING(-Wcast-align)
  53   BISON_WARNING(-Wcast-qual)
  54   BISON_WARNING(-Wformat)
  55   BISON_WARNING(-Wwrite-strings)
  56   AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
  57   # The following warnings are not suitable for C++.
  58   BISON_WARNING(-Wbad-function-cast)
  59   BISON_WARNING(-Wmissing-declarations)
  60   BISON_WARNING(-Wmissing-prototypes)
  61   BISON_WARNING(-Wnested-externs)
  62   BISON_WARNING(-Wshadow)
  63   BISON_WARNING(-Wstrict-prototypes)
  64   AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
  65 fi
  66
  67 AC_ARG_ENABLE([yacc],
  68   [AC_HELP_STRING([--disable-yacc],
  69      [do not build a yacc command or an -ly library])],
  70   , [enable_yacc=yes])
  71 case $enable_yacc in
  72 yes)
  73   YACC_SCRIPT=yacc
  74   YACC_LIBRARY=liby.a;;
  75 *)
  76   YACC_SCRIPT=
  77   YACC_LIBRARY=;;
  78 esac
  79 AC_SUBST([YACC_SCRIPT])
  80 AC_SUBST([YACC_LIBRARY])
  81
  82 # Checks for programs.
  83 AC_PROG_LEX
  84 AC_PROG_YACC
  85 AC_PROG_RANLIB
  86 BISON_PROG_GNU_M4
  87 if test x"$ac_cv_prog_gnu_m4" != xyes; then
  88   AC_MSG_ERROR([GNU M4 1.4 is required])
  89 fi
  90 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
  91
  92 # Checks for header files.
  93 AC_CHECK_HEADERS_ONCE([locale.h])
  94 AM_STDBOOL_H
  95
  96 # Checks for compiler characteristics.
  97 AC_C_INLINE
  98
  99 # Checks for types.
 100 AC_CHECK_TYPES([uintptr_t])
 101
 102 # Checks for library functions.
 103 AC_CHECK_FUNCS_ONCE([setlocale])
 104 AM_WITH_DMALLOC
 105 BISON_PREREQ_SUBPIPE
 106 BISON_PREREQ_TIMEVAR
 107
 108 # gnulib and gettext.
 109 GNULIB_AUTOCONF_SNIPPET
 110 # We use po/Makevars.template, so we need at least gettext 0.12.
 111 AM_GNU_GETTEXT_VERSION([0.12])
 112
 113 # Initialize the test suite.
 114 AC_CONFIG_TESTDIR(tests)
 115 AC_CONFIG_FILES([tests/Makefile tests/atlocal])
 116 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
 117 AC_CHECK_PROGS([VALGRIND], [valgrind])
 118 AC_PROG_CXX
 119 BISON_TEST_FOR_WORKING_CXX_COMPILER
 120 AM_MISSING_PROG([AUTOM4TE], [autom4te])
 121 # Needed by tests/atlocal.in.
 122 AC_SUBST([GCC])
 123 O0CFLAGS=`echo $CFLAGS | sed 's/-O[0-9] *//'`
 124 AC_SUBST([O0CFLAGS])
 125 O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[0-9] *//'`
 126 AC_SUBST([O0CXXFLAGS])
 127
 128 AC_CONFIG_FILES([Makefile
 129                  config/Makefile
 130                  po/Makefile.in
 131                  data/Makefile
 132                  lib/Makefile src/Makefile doc/Makefile])
 133 AC_OUTPUT