+AC_PROG_CC([-g])
+AC_PROG_CXX
+
+
+dnl AC_MSG_CHECKING([that the compiler works])
+dnl AC_TRY_RUN([ main(int ac, char **av) { return 0; } ], AC_MSG_RESULT(yes), AC_MSG_RESULT(no) AC_MSG_ERROR(Could not compile and run even a trivial ANSI C program - check CC.), AC_MSG_ERROR(Could not compile and run even a trivial ANSI C program - check CC.))
+
+dnl Check for C operation
+AC_CANONICAL_HOST
+AC_C_INLINE
+AC_CHECK_SIZEOF(short, 2)
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(float, 4)
+AC_CHECK_SIZEOF(double, 8)
+
+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
+