From: sndirsch@suse.com
Date: 2019-10-09 14:00:03+0000
References: https://bugzilla.opensuse.org/show_bug.cgi?id=1153455

--- a/include/SDL_opengl_glext.h
+++ b/include/SDL_opengl_glext.h
@@ -472,8 +472,9 @@
 typedef long GLsizeiptr;
 typedef long GLintptr;
 #else
-typedef ptrdiff_t GLsizeiptr;
-typedef ptrdiff_t GLintptr;
+#include <KHR/khrplatform.h>
+typedef khronos_ssize_t GLsizeiptr;
+typedef khronos_intptr_t GLintptr;
 #endif
 #define GL_BUFFER_SIZE                    0x8764
 #define GL_BUFFER_USAGE                   0x8765
