warn users about removing only CMakeCache.txt
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
I am trying to build a project which uses cmake and that queries
CMAKE_EXECUTABLE_FORMAT. The project has been building inconsistently for me, and I've tracked that down to
CMAKE_EXECUTABLE_FORMAT returning an incorrect result after I remove the
CMakeCache.txt file. (Before removing the cache, it returns a correct value of 'ELF'. After removing the cache, it returns an incorrect value of ''.)