[Bf-blender-cvs] [d6164c5396f] soc-2016-pbvh-painting: Fix building on gcc.

[Bastien Montagne]

Commit: d6164c5396fd174b3df79c9f99015fb2795d00a1
Author: Bastien Montagne
Date:   Wed Apr 5 15:33:47 2017 +0200
Branches: soc-2016-pbvh-painting
https://developer.blender.org/rBd6164c5396fd174b3df79c9f99015fb2795d00a1

Fix building on gcc.

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M	source/blender/editors/sculpt_paint/sculpt_intern.h

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diff --git a/source/blender/editors/sculpt_paint/sculpt_intern.h b/source/blender/editors/sculpt_paint/sculpt_intern.h
index 71716625198..87623f6cd19 100644
--- a/source/blender/editors/sculpt_paint/sculpt_intern.h
+++ b/source/blender/editors/sculpt_paint/sculpt_intern.h
@@ -59,6 +59,7 @@
 struct bContext;
 struct KeyBlock;
 struct Object;
+struct SculptUndoNode;
 
 int sculpt_mode_poll(struct bContext *C);
 int sculpt_mode_poll_view3d(struct bContext *C);