$OpenBSD: patch-config_mkdepend_imakemdep_h,v 1.1 2004/03/01 07:14:48 pvalchev Exp $
--- config/mkdepend/imakemdep.h.orig	1998-09-05 06:22:25.000000000 +0200
+++ config/mkdepend/imakemdep.h	2004-02-28 00:46:55.000000000 +0100
@@ -277,6 +277,9 @@ 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