maint: factor copyright year.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 3e987009b2b4b2ed4608b95ee147d264b6a1294b..78284e93261efa26328f976ffa3e1c1f1b49a635 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,6 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #

-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
+# Copyright (C) 2001-2012 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
 #
 # 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


@@ -16,25 +15,39 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 

-# testsuite -C appears in 2.62.
-AC_PREREQ(2.62)
+# In order for some versions of Sun Studio to compile our C++ test cases
+# correctly, we need Autoconf 2.64 or better to handle the restrict
+# keyword in at least string.h from gnulib.  We need Autoconf 2.68 or
+# better to avoid a typo in the `configure --help' entry for the YACC
+# environment variable.
+AC_PREREQ([2.68])
+m4_pattern_forbid([^gl_[A-Z]])

 
 AC_INIT([GNU Bison],
         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
         [bug-bison@gnu.org])
 
 AC_INIT([GNU Bison],
         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
         [bug-bison@gnu.org])

-AC_DEFINE([PACKAGE_COPYRIGHT_YEAR], [2008],
-          [The copyright year for this package])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2008])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
+AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
+                   [The copyright year for this package])

 
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
 
 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.
-# We want gnits strictness only when rolling a formal release so that we can,
-# for example, run make dist at other times without being required to add a
-# bogus NEWS entry.
-AM_INIT_AUTOMAKE([1.8 dist-bzip2]
-                 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [-], [gnu], [gnits]))
+# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
+#
+#   http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
+#
+# To avoid 1.11, we make 1.11.1 the minimum version.
+#
+# We want gnits strictness only when rolling a stable release.  For
+# release candidates, we use version strings like 2.4.3_rc1, but gnits
+# doesn't like that, so we let the underscore disable gnits.  Between
+# releases, we want to be able run make dist without being required to
+# add a bogus NEWS entry.  In that case, the version string
+# automatically contains a dash, which we also let disable gnits.
+AM_INIT_AUTOMAKE([1.11.1 dist-xz]
+                 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
+                           [gnu], [gnits]))

 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.
 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.


@@ -49,7 +62,7 @@ AC_ARG_ENABLE(gcc-warnings,
    yes|no) ;;
    *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
  esac],
    yes|no) ;;
    *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
  esac],

-             [enableval=no])
+              [enableval=no])

 if test "${enableval}" = yes; then
   gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
   AC_SUBST([WERROR_CFLAGS])
 if test "${enableval}" = yes; then
   gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
   AC_SUBST([WERROR_CFLAGS])


@@ -68,7 +81,11 @@ if test "${enableval}" = yes; then
   gl_WARN_ADD([-Wshadow])
   gl_WARN_ADD([-Wstrict-prototypes])
   AC_SUBST([WARN_CFLAGS])
   gl_WARN_ADD([-Wshadow])
   gl_WARN_ADD([-Wstrict-prototypes])
   AC_SUBST([WARN_CFLAGS])

-  AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
+  # Warnings for the test suite only.
+  gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
+  gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
+  AC_SUBST([WARN_CXXFLAGS_TEST], ["$WARN_CXXFLAGS $WARN_CFLAGS_TEST"])
+  AC_SUBST([WARN_CFLAGS_TEST], ["$WARN_CFLAGS $WARN_CFLAGS_TEST"])

 fi
 
 BISON_TEST_FOR_WORKING_C_COMPILER
 fi
 
 BISON_TEST_FOR_WORKING_C_COMPILER


@@ -94,6 +111,8 @@ AC_PROG_YACC
 AC_PROG_RANLIB
 AC_PROG_GNU_M4
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
 AC_PROG_RANLIB
 AC_PROG_GNU_M4
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])

+AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
+supports -g, otherwise to "".])

 AM_MISSING_PROG([HELP2MAN], [help2man])
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 AC_SUBST([XSLTPROC])
 AM_MISSING_PROG([HELP2MAN], [help2man])
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 AC_SUBST([XSLTPROC])


@@ -118,7 +137,7 @@ BISON_PREREQ_TIMEVAR
 # We use gnulib, which is only guaranteed to work properly with the
 # latest Gettext.
 AM_GNU_GETTEXT([external], [need-ngettext])
 # We use gnulib, which is only guaranteed to work properly with the
 # latest Gettext.
 AM_GNU_GETTEXT([external], [need-ngettext])

-AM_GNU_GETTEXT_VERSION([0.17])
+AM_GNU_GETTEXT_VERSION([0.18])

 BISON_I18N
 
 # Internationalized parsers.
 BISON_I18N
 
 # Internationalized parsers.


@@ -150,12 +169,13 @@ gt_JAVAEXEC
 # So prefix paths with lib/.  See also etc/prefix-gnulib-mk.
 gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
 for ac_var in ALLOCA_H ERRNO_H FCNTL_H GETOPT_H INTTYPES_H \
 # So prefix paths with lib/.  See also etc/prefix-gnulib-mk.
 gl_LIBOBJS=`echo "$gl_LIBOBJS" | sed -e 's, , lib/,g'`
 for ac_var in ALLOCA_H ERRNO_H FCNTL_H GETOPT_H INTTYPES_H \

+              LIBUNISTRING_UNITYPES_H LIBUNISTRING_UNIWIDTH_H \

               STDBOOL_H STDINT_H SYS_WAIT_H WCHAR_H WCTYPE_H
 do
               STDBOOL_H STDINT_H SYS_WAIT_H WCHAR_H WCTYPE_H
 do

-  eval "test 'x$ac_var' = x || $ac_var=lib/\$$ac_var"
+  eval "test x\$$ac_var = x || $ac_var=lib/\$$ac_var"

 done
 AC_CONFIG_FILES([Makefile
 done
 AC_CONFIG_FILES([Makefile

-                po/Makefile.in
-                examples/calc++/Makefile
-                doc/yacc.1])
+                 po/Makefile.in
+                 examples/calc++/Makefile
+                 doc/yacc.1])

 AC_OUTPUT
 AC_OUTPUT