[CMake] Getting a FindXXX.cmake script to revert to using XXX_DIR on failure

[Mike Arthur]

On Friday 20 June 2008 21:10:45 Stefán Freyr Stefánsson wrote:
> Is there any way for me to have CMake revert to the YARP_DIR method if the
> FindYARP.cmake script is unsuccessful?
What I do, for CLucene, is the following:

if (NOT CLUCENE_LIBRARY)
    add_subdirectory(CLucene)
    set(CLUCENE_LIBRARY clucene-core)
endif (NOT CLUCENE_LIBRARY)

So this adds the CLucene subdirectory and pulls in the clucene-core target as 
a dependency whenever I reference CLUCENE_LIBRARY. I should probably do the 
same with includes...

-- 
Cheers,
Mike Arthur