$OpenBSD: patch-mach_dep_c,v 1.4 2007/07/14 22:16:17 kili Exp $
--- mach_dep.c.orig	Wed Jul 11 12:46:22 2007
+++ mach_dep.c	Wed Jul 11 12:58:50 2007
@@ -159,7 +159,7 @@ void GC_push_regs()
 # undef HAVE_PUSH_REGS
 #endif
 
-#if !defined(HAVE_PUSH_REGS) && defined(UNIX_LIKE)
+#if !defined(HAVE_PUSH_REGS) && defined(UNIX_LIKE) && !defined(OPENBSD)
 # include <ucontext.h>
 #endif
 
@@ -174,7 +174,7 @@ void GC_with_callee_saves_pushed(void (*fn)(ptr_t, voi
 
 #   if defined(HAVE_PUSH_REGS)
       GC_push_regs();
-#   elif defined(UNIX_LIKE) && !defined(DARWIN) && !defined(ARM32)
+#   elif defined(UNIX_LIKE) && !defined(DARWIN) && !defined(ARM32) && !defined(OPENBSD)
       /* Older versions of Darwin seem to lack getcontext(). */
       /* ARM Linux often doesn't support a real getcontext(). */
       ucontext_t ctxt;