Index: mono/native/mono-native-platform.h
--- mono/native/mono-native-platform.h.orig
+++ mono/native/mono-native-platform.h
@@ -14,6 +14,7 @@ typedef enum {
 	MONO_NATIVE_PLATFORM_TYPE_FREEBSD	= 6,
 	MONO_NATIVE_PLATFORM_TYPE_HAIKU		= 7,
 	MONO_NATIVE_PLATFORM_TYPE_NETBSD	= 8,
+	MONO_NATIVE_PLATFORM_TYPE_OPENBSD	= 9,
 
 	MONO_NATIVE_PLATFORM_TYPE_IPHONE	= 0x100,
 	MONO_NATIVE_PLATFORM_TYPE_TV		= 0x200,