https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53929
--- Comment #18 from LIU Hao <lh_mouse at 126 dot com> --- Would it make any sense to have GAS be more permissive about such labels, 1. unconditionally? or 2. when input is from a pipe? or 3. when a special option is in effect e.g. `--output-from-gcc`?
