adds missing decleration

2 years ago · b14cc673bc
parent decfbc5387
commit b14cc673bc
1 changed files with 4 additions and 0 deletions
--- a/components/shader/shadermanager.hpp
+++ b/components/shader/shadermanager.hpp
@ -13,6 +13,10 @@
 #include <osg/Shader>
 #include <osg/Program>

+namespace osgViewer {
+    class Viewer;
+}
+
 namespace Shader
 {
    struct HotReloadManager;