X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbackends%2Fopengl%2Fbatch_backend.cpp;h=2bd3c8374b3278e20e01e475e74e82a862b27dad;hp=d80c11cc84fef0d5926041cd925c1e45b5d2ca49;hb=9eb9f592d37e9a1e05c2ff70887a1c5f26b98864;hpb=29fe33d3dde1df0e11c741b0c02af2f33b685571

diff --git a/source/backends/opengl/batch_backend.cpp b/source/backends/opengl/batch_backend.cpp
index d80c11cc..2bd3c837 100644
--- a/source/backends/opengl/batch_backend.cpp
+++ b/source/backends/opengl/batch_backend.cpp
@@ -1,3 +1,4 @@
+#include <msp/gl/extensions/arb_tessellation_shader.h>
 #include <msp/gl/extensions/msp_primitive_restart.h>
 #include "batch_backend.h"
 
@@ -7,7 +8,10 @@ namespace GL {
 OpenGLBatch::OpenGLBatch(PrimitiveType t):
 	gl_prim_type(get_gl_primitive_type(t)),
 	gl_index_type(GL_UNSIGNED_SHORT)
-{ }
+{
+	if(t==PATCHES)
+		static Require _req(ARB_tessellation_shader);
+}
 
 bool OpenGLBatch::check_restart(bool require)
 {