[CMake] CheckLibraryExists behaviour with different compilers

[Nils Gladitz]

On 04/20/2015 11:47 AM, victor sv wrote:

>      CHECK_LIBRARY_EXISTS(metis METIS_SetDefaultOptions ${METIS_PATH}
> HAVE_METIS_SETDEFAULTOPTIONS)

[...]

>
> But if I build my project with GNU compilers and METIS still compiled
> with Intel compilers, CMake says:
>
>
> Looking for METIS_SetDefaultOptions in metis - not found

I'd first check CMakeFiles/CMakeError.log to see why it actually failed.

Nils