Better endianness fix

svn path=/trunk/; revision=7149

diff --git a/ChangeLog b/ChangeLog
index 37abd9f359912a19fd60c3fe40a2db92c4cd12f3..d6dc2086f991409409ae971521a799195cac4c21 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2008-07-02  Matthias Clasen  <mclasen@redhat.com>
+
+       * configure.in: Better endianness fix. From Tomas Mraz.
+
 2008-07-02  Matthias Clasen  <mclasen@redhat.com>
 
        * NEWS: Updates

diff --git a/configure.in b/configure.in
index 74955557853238c87cd8fd327436f3de4c6b98dc..348d5125b3eb2c44150833e444c4cba4ead45714 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -821,6 +821,20 @@ AM_CONDITIONAL(HAVE_SUNSTUDIO_VISIBILITY, [test x$g_have_sunstudio_visibility =
 
 # check for bytesex stuff
 AC_C_BIGENDIAN
+if test x$ac_cv_c_bigendian = xuniversal ; then
+AC_TRY_COMPILE([#include <endian.h>], [#if __BYTE_ORDER == __BIG_ENDIAN
+#else
+#error Not a big endian. 
+#endif],
+    ac_cv_c_bigendian=yes
+    ,AC_TRY_COMPILE([#include <endian.h>], [#if __BYTE_ORDER == __LITTLE_ENDIAN
+#else
+#error Not a little endian. 
+#endif],
+    ac_cv_c_bigendian=no
+    ,AC_MSG_WARN([Could not determine endianness.])))
+fi
+
 
 # check for header files
 AC_CHECK_HEADERS([dirent.h float.h limits.h pwd.h grp.h sys/param.h sys/poll.h sys/resource.h])