IS_ABSOLUTE_FILE_NAME   80 lib/filename.h #  define IS_ABSOLUTE_FILE_NAME(Filename) \
IS_ABSOLUTE_FILE_NAME   83 lib/filename.h #  define IS_ABSOLUTE_FILE_NAME(Filename) \
IS_ABSOLUTE_FILE_NAME   97 lib/filename.h # define IS_ABSOLUTE_FILE_NAME(Filename) ISSLASH ((Filename)[0])