[CMake] using cpp file which is not there

[klaas.holwerda]

Hi,

( Vc6 Cmake 2.2. beta )

I have the next peace of Cmake, the first ADD_CUSTOM_COMMAND, does 
generate files used by the second ADD_LIBRARY.

If the files are not  there at the start, Cmake tells me that they 
should be.
How can i fool Cmake to ignore the fact that they are not there yet?

Thanks,

Klaas

ADD_CUSTOM_COMMAND( OUTPUT ${luawraps_SOURCE_DIR}/src/luawraps.cpp
COMMAND ${luawraps_BINARY_DIR}/src/genwxbind.bat
DEPENDS
    ${wxart2d_BINARY_DIR}/include/luasetup.h
    ${luawraps_BINARY_DIR}/src/luawraps.i
)

ADD_LIBRARY( luawraps
    ${a2d_PCH_SOURCE_FILE}
    ${luawraps_SOURCE_DIR}/src/luawrap.cpp
    ${luawraps_SOURCE_DIR}/src/luawraps.cpp
    ${luawraps_SOURCE_DIR}/src/wxart2d_builtin.cpp
    ${luawraps_SOURCE_DIR}/src/wxart2d_class.cpp
    ${luawraps_SOURCE_DIR}/src/wxart2d_define.cpp
    ${luawraps_SOURCE_DIR}/src/wxart2d_event.cpp
    ${luawraps_SOURCE_DIR}/src/wxart2d_object.cpp    
    ${luawraps_SOURCE_DIR}/src/wxledit.cpp
    ${luawraps_HEADERS}
)