$OpenBSD: patch-src_mips_ffi_c,v 1.1 2010/02/23 19:08:55 jasper Exp $

Allow building this on OpenBSD, where we don't provide the ICACHE related
defines in cachectl.h, but in sysarch.h.

--- src/mips/ffi.c.orig	Tue Feb 26 18:34:36 2008
+++ src/mips/ffi.c	Sat Feb 20 00:46:52 2010
@@ -37,7 +37,11 @@
 #endif
 
 #ifndef USE__BUILTIN___CLEAR_CACHE
-#include <sys/cachectl.h>
+#  if defined(__OpenBSD__)
+#    include <mips64/sysarch.h>
+#  else
+#    include <sys/cachectl.h>
+#  endif
 #endif
 
 #ifdef FFI_DEBUG