--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/acinclude/ac_check_define.m4	Sun Oct 04 20:44:04 2009 +0000
@@ -0,0 +1,14 @@
+define(AC_CHECK_DEFINE,[dnl
+  AC_CACHE_CHECK(for $1 in $2, ac_cv_define_$1,
+    AC_EGREP_CPP([YES_IS_DEFINED], [
+#include <$2>
+#ifdef $1
+YES_IS_DEFINED
+#endif
+    ], ac_cv_define_$1=yes, ac_cv_define_$1=no)
+  )
+  if test "$ac_cv_define_$1" = "yes" ; then
+    AC_DEFINE(HAVE_$1)
+  fi
+])dnl
+AC_DEFINE(HAVE_$1)