Index: GsKit/base/video/scaler/scalebit.cpp
--- GsKit/base/video/scaler/scalebit.cpp.orig
+++ GsKit/base/video/scaler/scalebit.cpp
@@ -38,6 +38,8 @@
 
 #ifdef __MINGW32__
 	#include <malloc.h>
+#elif __OpenBSD__
+#define alloca __builtin_alloca
 #else
 	#include <alloca.h>
 #endif
