$OpenBSD: patch-config_mkdepend_imakemdep_h,v 1.2 2005/12/20 23:44:00 bernd Exp $
--- config/mkdepend/imakemdep.h.orig	Tue Apr 20 23:38:14 2004
+++ config/mkdepend/imakemdep.h	Sat Sep 10 09:47:31 2005
@@ -440,6 +440,9 @@ char *cpp_argv[ARGUMENTS] = {
 # ifdef __i386__
 	"-D__i386__",
 # endif
+# if defined(__amd64__) || defined(__x86_64__)
+	"-D__amd64__ -D__x86_64__",
+# endif
 # ifdef __GNUC__
 	"-traditional",
 # endif