From: Bruno Haible <bruno@clisp.org>
Date: Sun, 17 Aug 2008 09:51:31 +0000 (+0000)
Subject: Adapt AC_C_BIGENDIAN invocation to autoconf 2.62.
X-Git-Tag: v0.18~373
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9111e71467a234e89dd5ae7972281218b5a1a85a;p=thirdparty%2Fgettext.git

Adapt AC_C_BIGENDIAN invocation to autoconf 2.62.
---

diff --git a/gettext-tools/ChangeLog b/gettext-tools/ChangeLog
index ecb8a3dd8..34b0dff1e 100644
--- a/gettext-tools/ChangeLog
+++ b/gettext-tools/ChangeLog
@@ -1,3 +1,8 @@
+2008-08-17  Bruno Haible  <bruno@clisp.org>
+
+	* configure.ac: Adapt AC_C_BIGENDIAN invocation to autoconf 2.62: make
+	it work for universal binary builds on MacOS X.
+
 2008-04-20  Bruno Haible  <bruno@clisp.org>
 
 	* configure.ac: Use LT_INIT instead of AC_PROG_LIBTOOL.
diff --git a/gettext-tools/configure.ac b/gettext-tools/configure.ac
index 307ade9b9..1d1f56dd8 100644
--- a/gettext-tools/configure.ac
+++ b/gettext-tools/configure.ac
@@ -169,12 +169,28 @@ AC_FUNC_VFORK
 gt_SIGINFO
 gt_SETLOCALE
 gt_LIBGREP
+
 AC_C_BIGENDIAN([endianness=1], [endianness=0],
   [echo "AC-C-BIGENDIAN fails to work on your system." | sed -e 's,-,_,g' 1>&2
    echo "Please report this as a bug to bug-autoconf@gnu.org" 1>&2
-   exit 1])
-AC_DEFINE_UNQUOTED([ENDIANNESS], [$endianness],
-  [Define according to the byte order of the target machine: 1 for big endian, 0 for little endian.])
+   exit 1],
+  [endianness=universal])
+if test $endianness != universal; then
+  AC_DEFINE_UNQUOTED([ENDIANNESS], [$endianness],
+    [Define according to the byte order of the target machine: 1 for big endian, 0 for little endian.])
+fi
+dnl For possibly universal binaries, it's not possible to determine the
+dnl endianness at configure time. So determine it at compile time.
+AH_BOTTOM([
+#ifndef ENDIANNESS
+# if defined __BIG_ENDIAN__
+#  define ENDIANNESS 1
+# endif
+# if defined __LITTLE_ENDIAN__
+#  define ENDIANNESS 0
+# endif
+#endif
+])
 
 gt_PREREQ_HOSTNAME