tests: be robust to POSIXLY_CORRECT being defined.

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index c955198b3b4f553041a13226e881b35ce64d670e..622da5da4a8efb4e01a3b50893ce474738b2a1c8 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,6 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-# 2010 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
@@ -18,15 +17,18 @@
 
 # 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.
-AC_PREREQ(2.64)
+# 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_DEFINE([PACKAGE_COPYRIGHT_YEAR], [2010],
-          [The copyright year for this package])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2010])
+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])
@@ -43,9 +45,12 @@ AC_CONFIG_MACRO_DIR([m4])
 # 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-bzip2]
+AM_INIT_AUTOMAKE([1.11.1 dist-xz nostdinc
+                 color-tests parallel-tests
+                 silent-rules]
                  m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
                            [gnu], [gnits]))
+AM_SILENT_RULES([yes])
 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
 
 # Checks for the compiler.
@@ -54,14 +59,14 @@ AC_PROG_CC_STDC
 # Gnulib (early checks).
 gl_EARLY
 
-AC_ARG_ENABLE(gcc-warnings,
+AC_ARG_ENABLE([gcc-warnings],
 [  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
-[case "${enableval}" in
+[case $enable_gcc_warnings in
    yes|no) ;;
-   *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
+   *)  AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);;
  esac],
-             [enableval=no])
-if test "${enableval}" = yes; then
+              [enable_gcc_warnings=no])
+if test "$enable_gcc_warnings" = yes; then
   gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
   AC_SUBST([WERROR_CFLAGS])
   gl_WARN_ADD([-Wall])
@@ -81,11 +86,9 @@ if test "${enableval}" = yes; then
   AC_SUBST([WARN_CFLAGS])
   # Warnings for the test suite only.
   gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
-  WARN_CXXFLAGS_TEST="$WARN_CXXFLAGS $WARN_CFLAGS_TEST"
-  WARN_CFLAGS_TEST="$WARN_CFLAGS $WARN_CFLAGS_TEST"
-  AC_SUBST([WARN_CXXFLAGS_TEST])
-  AC_SUBST([WARN_CFLAGS_TEST])
-  AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
+  gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
+  AC_SUBST([WARN_CXXFLAGS_TEST], ["$WARN_CXXFLAGS $WARN_CFLAGS_TEST"])
+  AC_SUBST([WARN_CFLAGS_TEST], ["$WARN_CFLAGS $WARN_CFLAGS_TEST"])
 fi
 
 BISON_TEST_FOR_WORKING_C_COMPILER
@@ -168,14 +171,17 @@ gt_JAVAEXEC
 # We use gnulib, but from lib/local.mk instead of lib/Makefile.am.
 # 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
+# Listing the names of the variables to prefix is error-prone.
+# Rather, adjust all the AC_SUBST variables whose name ends in '_H',
+# and whose content ends in '.h'.
+for ac_var in $ac_subst_vars
 do
-  eval "test x\$$ac_var = x || $ac_var=lib/\$$ac_var"
+  eval "ac_val=\$$ac_var"
+  case $ac_var=$ac_val in
+    (*_H=*.h) eval "$ac_var=lib/\$$ac_var";;
+  esac
 done
 AC_CONFIG_FILES([Makefile
-                po/Makefile.in
-                examples/calc++/Makefile
-                doc/yacc.1])
+                 po/Makefile.in
+                 doc/yacc.1])
 AC_OUTPUT