-dnl ---------------------------------------------------------------------------
-dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
-dnl from wxGTK (www.wxwindows.org) - LGPL license
-dnl ---------------------------------------------------------------------------
-
-AC_DEFUN(WX_C_BIGENDIAN,
-[AC_CACHE_CHECK(whether byte ordering is bigendian, ac_cv_c_bigendian,
-[ac_cv_c_bigendian=unknown
-# See if sys/param.h defines the BYTE_ORDER macro.
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/param.h>], [
-#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
- bogus endian macros
-#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/param.h>], [
-#if BYTE_ORDER != BIG_ENDIAN
- not big endian
-#endif], ac_cv_c_bigendian=yes, ac_cv_c_bigendian=no)])
-if test $ac_cv_c_bigendian = unknown; then
-AC_TRY_RUN([main () {
- /* Are we little or big endian? From Harbison&Steele. */
- union
- {
- long l;
- char c[sizeof (long)];
- } u;
- u.l = 1;
- exit (u.c[sizeof (long) - 1] == 1);
-}], ac_cv_c_bigendian=no, ac_cv_c_bigendian=yes, ac_cv_c_bigendian=unknown)
-fi])
-if test $ac_cv_c_bigendian = unknown; then
- AC_MSG_WARN([Assuming little-endian target machine - this may be overriden by adding the line "ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}"
-to config.cache file])
-fi
-if test $ac_cv_c_bigendian = yes; then
- AC_DEFINE(WORDS_BIGENDIAN)
-fi
-])
-
-WX_C_BIGENDIAN
-
-