Bump version number to 2.0a.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 930dfb15c6307a2144df2ac8cadebfc1d3c46f8b..33e822d9d11a61c3d8712f26b73c001be3a0adb9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -17,14 +17,18 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 # 02111-1307  USA
 
-# We need a recent Autoconf to run a recent Autotest.
-AC_PREREQ(2.57)
+# 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)
 
-AC_INIT([GNU Bison], [1.875c], [bug-bison@gnu.org])
+AC_INIT([GNU Bison], [2.0a], [bug-bison@gnu.org])
 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE([1.7 check-news readme-alpha dist-bzip2])
+# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
+AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2])
 AC_CONFIG_HEADERS([config.h:config.hin])
 
 gl_USE_SYSTEM_EXTENSIONS
@@ -43,20 +47,20 @@ if test "${enableval}" = yes; then
   BISON_WARNING(-Werror)
   AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
   WARNING_CFLAGS=
-  BISON_WARNING(-Wall)
   BISON_WARNING(-W)
+  BISON_WARNING(-Wall)
   BISON_WARNING(-Wcast-align)
   BISON_WARNING(-Wcast-qual)
   BISON_WARNING(-Wformat)
-  BISON_WARNING(-Wmissing-prototypes)
-  BISON_WARNING(-Wshadow)
-  BISON_WARNING(-Wstrict-prototypes)
   BISON_WARNING(-Wwrite-strings)
   AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
   # The following warnings are not suitable for C++.
   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
 
@@ -103,7 +107,8 @@ BISON_PREREQ_TIMEVAR
 
 # gnulib and gettext.
 GNULIB_AUTOCONF_SNIPPET
-AM_GNU_GETTEXT_VERSION([0.14.1])
+# We use po/Makevars.template, so we need at least gettext 0.12.
+AM_GNU_GETTEXT_VERSION([0.12])
 
 # Initialize the test suite.
 AC_CONFIG_TESTDIR(tests)
@@ -111,11 +116,14 @@ AC_CONFIG_FILES([tests/Makefile tests/atlocal])
 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
 AC_CHECK_PROGS([VALGRIND], [valgrind])
 AC_PROG_CXX
+BISON_TEST_FOR_WORKING_CXX_COMPILER
 AM_MISSING_PROG([AUTOM4TE], [autom4te])
 # Needed by tests/atlocal.in.
 AC_SUBST([GCC])
 O0CFLAGS=`echo $CFLAGS | sed 's/-O[0-9] *//'`
 AC_SUBST([O0CFLAGS])
+O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[0-9] *//'`
+AC_SUBST([O0CXXFLAGS])
 
 AC_CONFIG_FILES([Makefile
                  config/Makefile