doc: merge HACKING and README-hacking.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index bd9ff0b6a83644b4cb84788e6691937a0fae102c..f1ebd8de69d683d19a9e3bd8cc70f3884d5dc5de 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,11 +1,11 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
 # Foundation, Inc.
 #
-# This program is free software; you can redistribute it and/or modify
+# 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
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
@@ -14,19 +14,27 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # We have strange test case titles, so we need Autoconf 2.61 or better.
 AC_PREREQ(2.61)
 
-AC_INIT([GNU Bison], [2.3a+], [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_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])
+# 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]))
 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.
@@ -41,25 +49,25 @@ AC_ARG_ENABLE(gcc-warnings,
    yes|no) ;;
    *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
  esac],
-              [enableval=no])
+             [enableval=no])
 if test "${enableval}" = yes; then
-  gl_WARNING_CFLAGS([-Werror])
-  AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
-  WARNING_CFLAGS=
-  gl_WARNING_CFLAGS([-Wall])
-  gl_WARNING_CFLAGS([-Wextra -Wno-sign-compare])
-  gl_WARNING_CFLAGS([-Wcast-align])
-  gl_WARNING_CFLAGS([-Wcast-qual])
-  gl_WARNING_CFLAGS([-Wformat])
-  gl_WARNING_CFLAGS([-Wpointer-arith])
-  gl_WARNING_CFLAGS([-Wwrite-strings])
-  AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
+  gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
+  AC_SUBST([WERROR_CFLAGS])
+  gl_WARN_ADD([-Wall])
+  gl_WARN_ADD([-Wextra -Wno-sign-compare])
+  gl_WARN_ADD([-Wcast-align])
+  gl_WARN_ADD([-Wcast-qual])
+  gl_WARN_ADD([-Wformat])
+  gl_WARN_ADD([-Wpointer-arith])
+  gl_WARN_ADD([-Wwrite-strings])
+  AC_SUBST([WARN_CXXFLAGS], [$WARN_CFLAGS])
   # The following warnings are not suitable for C++.
-  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])
+  gl_WARN_ADD([-Wbad-function-cast])
+  gl_WARN_ADD([-Wmissing-declarations])
+  gl_WARN_ADD([-Wmissing-prototypes])
+  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.])
 fi
 
@@ -89,6 +97,9 @@ if test x"$ac_cv_prog_gnu_m4" != xyes; then
   AC_MSG_ERROR([GNU M4 1.4 is required])
 fi
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
+AM_MISSING_PROG([HELP2MAN], [help2man])
+AC_PATH_PROG([XSLTPROC], [xsltproc])
+AC_SUBST([XSLTPROC])
 
 # Checks for header files.
 AC_CHECK_HEADERS_ONCE([locale.h])
@@ -131,20 +142,20 @@ 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_SUBST([O0CFLAGS],   [`echo $CFLAGS   | sed 's/-O[[0-9]] *//'`])
+AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
 
 gt_JAVACOMP([1.3])
 gt_JAVAEXEC
 
 AC_CONFIG_FILES([Makefile
-                 build-aux/Makefile
-                 po/Makefile.in
-                 data/Makefile
-                 etc/Makefile
+                build-aux/Makefile
+                po/Makefile.in
+                data/Makefile
+                etc/Makefile
                 examples/Makefile
                    examples/calc++/Makefile
-                 lib/Makefile src/Makefile doc/Makefile])
+                lib/Makefile src/Makefile
+                doc/Makefile
+                  doc/yacc.1])
 AC_OUTPUT