add libosgGA to OpenSceneGraph libraries used with tests

The DeletionManager needs osgGA. This becomes apparent when building shared
libraries.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 623feea5b891d5b94e70da90b554ee11f2d02c0a..f34d882881bd38699c0e61decc99741696374f23 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,7 +120,7 @@ else()
     find_package(OpenGL REQUIRED)
     find_package(OpenAL REQUIRED)
     find_package(ALUT REQUIRED)
-    find_package(OpenSceneGraph 3.0.0 REQUIRED osgText osgSim osgDB osgParticle osgUtil)
+    find_package(OpenSceneGraph 3.0.0 REQUIRED osgText osgSim osgDB osgParticle osgGA osgUtil)
 endif(SIMGEAR_HEADLESS)
 
 if(JPEG_FACTORY)