File yamagi-quake2-fix-OpenGL-linking.diff of Package yamagi-quake2

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e4a1b3..0cb3d28 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -524,7 +524,7 @@ set_target_properties(ref_gl1 PROPERTIES
 		LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 		RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 		)
-target_link_libraries(ref_gl1 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags} ${yquake2SDLLinkerFlags})
+target_link_libraries(ref_gl1 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags} ${yquake2SDLLinkerFlags} GL)
 
 # Build the GL3 dynamic library
 add_library(ref_gl3 MODULE ${GL3-Source} ${GL3-Header} ${GL-Platform-Specific-Source})
@@ -533,4 +533,4 @@ set_target_properties(ref_gl3 PROPERTIES
 		LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 		RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 		)
-target_link_libraries(ref_gl3 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags} ${yquake2SDLLinkerFlags})
+target_link_libraries(ref_gl3 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags} ${yquake2SDLLinkerFlags} GL)