debugfull & clang/ccache

[Stephen Kelly]

Andreas Pakulat wrote:
> I'd say an "OR CMAKE_CXX_COMPILER_ID MATCHES 'clang'" should be
> sufficient,

Actually it would be:

 CMAKE_CXX_COMPILER_ID MATCHES Clang

the CMAKE_CXX_COMPILER_ID is not necessarily the same case as the 
executable.

Thanks,

Steve.