(make_path): Try to change ownership only if we've just created the directory. Fix latent bug (s/&&/||/ in two places -- also, note that it could not be exercised via install or mkdir) whereby chown would not be invoked when only one of owner/group is not -1.

#undef PARAMS
#if defined (__STDC__) && __STDC__
# define PARAMS(Args) Args
#else
# define PARAMS(Args) ()
#endif

int
  memcasecmp PARAMS ((const void *vs1, const void *vs2, size_t n));