David Gobbi authored Sep 14, 2015 and Brad King committed Sep 16, 2015

We use PATH_SUFFIXES to append "python<v>" to each candidate path.  Do
not append it to the constructed list of python framework include
directories.  Otherwise the combined path will never exist.  Note that
the code doesn't yet try to match the suffixes "m" and "u" between the
executable, library, and include directory.