Adjust to Autoconf 2.60 and today's gnulib.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 1bf79a08ca70f6a77ad83d5a81c97e7bee144336..eafa6c3794d66e8970b39cd3735f185c11a8b344 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -17,13 +18,10 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301  USA
 
-# This file uses AC_CONFIG_MACRO_DIR, so we need Autoconf 2.58 or better.
-# But Autoconf 2.58 has a bug in the way that it generates tests: it
-# puts the wrong absolute path names in the tests.  So we need at
-# least Autoconf 2.59.
-AC_PREREQ(2.59)
+# We use macros like AC_CHECK_HEADERS_ONCE, so we need Autoconf 2.60 or better.
+AC_PREREQ(2.60)
 
-AC_INIT([GNU Bison], [2.0a], [bug-bison@gnu.org])
+AC_INIT([GNU Bison], [2.3+], [bug-bison@gnu.org])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
@@ -58,12 +56,13 @@ if test "${enableval}" = yes; then
   BISON_WARNING(-Wbad-function-cast)
   BISON_WARNING(-Wmissing-declarations)
   BISON_WARNING(-Wmissing-prototypes)
-  BISON_WARNING(-Wnested-externs)
   BISON_WARNING(-Wshadow)
   BISON_WARNING(-Wstrict-prototypes)
   AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
 fi
 
+BISON_TEST_FOR_WORKING_C_COMPILER
+
 AC_ARG_ENABLE([yacc],
   [AC_HELP_STRING([--disable-yacc],
      [do not build a yacc command or an -ly library])],
@@ -96,9 +95,6 @@ AM_STDBOOL_H
 # Checks for compiler characteristics.
 AC_C_INLINE
 
-# Checks for types.
-AC_CHECK_TYPES([uintptr_t])
-
 # Checks for library functions.
 AC_CHECK_FUNCS_ONCE([setlocale])
 AM_WITH_DMALLOC
@@ -133,7 +129,7 @@ O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`
 AC_SUBST([O0CXXFLAGS])
 
 AC_CONFIG_FILES([Makefile
-                 config/Makefile
+                 build-aux/Makefile
                  po/Makefile.in
                  data/Makefile
                 examples/Makefile