Patch taken from Fedora, removes redefinitions that conflicts on x86.
--- a/Sources/API/GL/opengl_defines.h
+++ b/Sources/API/GL/opengl_defines.h
@@ -69,6 +69,4 @@
 typedef void GLvoid;
 typedef char GLchar;
-typedef ptrdiff_t GLintptr;
-typedef ptrdiff_t GLsizeiptr;
 typedef struct __CLsync *CLsync;
 
--- a/Sources/API/GL1/opengl1_defines.h
+++ b/Sources/API/GL1/opengl1_defines.h
@@ -65,6 +65,4 @@
 typedef void GLvoid;
 typedef char GLchar;
-typedef ptrdiff_t GLintptr;
-typedef ptrdiff_t GLsizeiptr;
 
 #else