• Ben Boeckel's avatar
    Don't put legacy variables back into the cache · 6a46f5ce
    Ben Boeckel authored
    If PYTHON_INCLUDE_PATH is put into the cache, then it will always
    override whatever might be found and PYTHON_INCLUDE_DIR is never given a
    chance to find something different. It being marked as INTERNAL also
    means that it cannot be changed without editing CMakeCache.txt directly.
    
    Basically, the scenario is that if the Python version is changed, then
    deleting PYTHON_INCLUDE_DIR doesn't work because any cached
    PYTHON_INCLUDE_PATH variable is set before find_path is even called. Any
    build tree using a previous version will still need either manual
    removal of PYTHON_INCLUDE_PATH or a complete reconfigure, but in the
    future changing the Python version can be accomplished by deleting
    PYTHON_INCLUDE_DIR and reconfiguring with the new version.
    6a46f5ce
FindPythonLibs.cmake 10.9 KB