Rearrange initialization of the parser state variables so that the

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index e89f9e64559a6aa2eed973c8019d825c022771df..22bfb2027ac10aee9a80ab9374c22dd66d0e14f1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -18,22 +18,23 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301  USA
 
-# We use macros like AC_CHECK_HEADERS_ONCE, so we need Autoconf 2.60 or better.
-AC_PREREQ(2.60)
+# We have strange test case titles, so we need Autoconf 2.61 or better.
+AC_PREREQ(2.61)
 
-AC_INIT([GNU Bison], [2.3+], [bug-bison@gnu.org])
+AC_INIT([GNU Bison], [2.3a+], [bug-bison@gnu.org])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
 # 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
+AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.
-AC_PROG_CC
-AM_PROG_CC_STDC
+AC_PROG_CC_STDC
+
+# Gnulib (early checks).
+gl_EARLY
+
 AC_ARG_ENABLE(gcc-warnings,
 [  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
 [case "${enableval}" in
@@ -45,11 +46,12 @@ if test "${enableval}" = yes; then
   gl_WARNING_CFLAGS([-Werror])
   AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
   WARNING_CFLAGS=
-  gl_WARNING_CFLAGS([-W])
   gl_WARNING_CFLAGS([-Wall])
+  gl_WARNING_CFLAGS([-Wextra -Wno-sign-compare])
   gl_WARNING_CFLAGS([-Wcast-align])
   gl_WARNING_CFLAGS([-Wcast-qual])
   gl_WARNING_CFLAGS([-Wformat])
+  gl_WARNING_CFLAGS([-Wpointer-arith])
   gl_WARNING_CFLAGS([-Wwrite-strings])
   AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
   # The following warnings are not suitable for C++.
@@ -90,20 +92,23 @@ AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
 
 # Checks for header files.
 AC_CHECK_HEADERS_ONCE([locale.h])
-AM_STDBOOL_H
 
 # Checks for compiler characteristics.
 AC_C_INLINE
 
+# Gnulib (later checks).  Putting them here rather than right after
+# gl_EARLY avoids some redundant checks.
+gl_INIT
+
 # Checks for library functions.
 AC_CHECK_FUNCS_ONCE([setlocale])
 AM_WITH_DMALLOC
 BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
-# gnulib and gettext.
-GNULIB_AUTOCONF_SNIPPET
+# Gettext.
 # We've never tested with gettext versions before 0.15, so play it safe.
+AM_GNU_GETTEXT([external], [need-formatstring-macros])
 AM_GNU_GETTEXT_VERSION([0.15])
 BISON_I18N