# opengl32.dll
        add_custom_command (
-               OUTPUT opengl32.cpp
-               COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/wgltrace.py > ${CMAKE_CURRENT_BINARY_DIR}/opengl32.cpp
+               OUTPUT wgltrace.cpp
+               COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/wgltrace.py > ${CMAKE_CURRENT_BINARY_DIR}/wgltrace.cpp
                DEPENDS wgltrace.py trace.py wglapi.py glapi.py glenum.py winapi.py stdapi.py
        )
-       add_library (opengl SHARED opengl32.def opengl32.cpp trace_write.cpp os_win32.cpp)
+       add_library (opengl SHARED opengl32.def wgltrace.cpp trace_write.cpp os_win32.cpp)
        set_target_properties (opengl PROPERTIES
                PREFIX ""
                OUTPUT_NAME opengl32)