* NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index eafa6c3794d66e8970b39cd3735f185c11a8b344..56a69b6081a46434896f848f4924093c4ff4107a 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 "${enableval}" in
@@ -42,22 +43,23 @@ AC_ARG_ENABLE(gcc-warnings,
  esac],
               [enableval=no])
 if test "${enableval}" = yes; then
-  BISON_WARNING(-Werror)
+  gl_WARNING_CFLAGS([-Werror])
   AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
   WARNING_CFLAGS=
-  BISON_WARNING(-W)
-  BISON_WARNING(-Wall)
-  BISON_WARNING(-Wcast-align)
-  BISON_WARNING(-Wcast-qual)
-  BISON_WARNING(-Wformat)
-  BISON_WARNING(-Wwrite-strings)
+  gl_WARNING_CFLAGS([-Wall])
+  gl_WARNING_CFLAGS([-Wextra -Wno-sign-compare])
+  gl_WARNING_CFLAGS([-Wcast-align])
+  gl_WARNING_CFLAGS([-Wcast-qual])
+  gl_WARNING_CFLAGS([-Wformat])
+  gl_WARNING_CFLAGS([-Wpointer-arith])
+  gl_WARNING_CFLAGS([-Wwrite-strings])
   AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
   # The following warnings are not suitable for C++.
-  BISON_WARNING(-Wbad-function-cast)
-  BISON_WARNING(-Wmissing-declarations)
-  BISON_WARNING(-Wmissing-prototypes)
-  BISON_WARNING(-Wshadow)
-  BISON_WARNING(-Wstrict-prototypes)
+  gl_WARNING_CFLAGS([-Wbad-function-cast])
+  gl_WARNING_CFLAGS([-Wmissing-declarations])
+  gl_WARNING_CFLAGS([-Wmissing-prototypes])
+  gl_WARNING_CFLAGS([-Wshadow])
+  gl_WARNING_CFLAGS([-Wstrict-prototypes])
   AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
 fi
 
@@ -90,21 +92,24 @@ 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
-# We use po/Makevars, so we need at least gettext 0.12.
-AM_GNU_GETTEXT_VERSION([0.12])
+# 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
 
 # Internationalized parsers.
@@ -113,6 +118,9 @@ AC_CONFIG_FILES([runtime-po/Makefile.in])
 aclocaldir='${datadir}/aclocal'
 AC_SUBST([aclocaldir])
 
+# Create the benchmark script.
+AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
+
 # Initialize the test suite.
 AC_CONFIG_TESTDIR(tests)
 AC_CONFIG_FILES([tests/Makefile tests/atlocal])
@@ -132,6 +140,7 @@ AC_CONFIG_FILES([Makefile
                  build-aux/Makefile
                  po/Makefile.in
                  data/Makefile
+                 etc/Makefile
                 examples/Makefile
                    examples/calc++/Makefile
                  lib/Makefile src/Makefile doc/Makefile])