Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -415,9 +415,11 @@ if (NOT ZLIB_FOUND)
 endif (NOT ZLIB_FOUND)
 
 option (LUGARU_FORCE_INTERNAL_GLU "Force internal libGLU, even if there's a system version" False)
-if (LUGARU_FORCE_INTERNAL_GLU)
-	set(OPENGL_GLU_FOUND False)
-endif (LUGARU_FORCE_INTERNAL_GLU)
+if (NOT LUGARU_FORCE_INTERNAL_GLU)
+    find_package(GLU)
+else(NOT LUGARU_FORCE_INTERNAL_GLU)
+    set(OPENGL_GLU_FOUND False)
+endif (NOT LUGARU_FORCE_INTERNAL_GLU)
 
 if (NOT OPENGL_GLU_FOUND)
     message(STATUS "Using internal copy of libGLU")