Undo last commit.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 087cd4904539db40863efb0321401d610833486c..36d4dc1182fbce062aa36a75f92a5a18dc8c448d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -18,13 +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], [2.1b], [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])
 
@@ -45,22 +42,23 @@ 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([-Wextra -Wno-sign-compare])
+  gl_WARNING_CFLAGS([-Wall])
+  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
 
@@ -98,9 +96,6 @@ 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
@@ -109,8 +104,8 @@ 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])
+# We've never tested with gettext versions before 0.15, so play it safe.
+AM_GNU_GETTEXT_VERSION([0.15])
 BISON_I18N
 
 # Internationalized parsers.