revision r181278 gives me a bootstrap/build error on cygwin for gcc trunk: cc1: warning: unrecognized command line option "-Wno-narrowing"

[Paolo Carlini]

Hi,
> revision r181278 gives me a bootstrap/build error on cygwin for gcc
> trunk like this

Just to make sure nobody is midled by th subject of your message: your bootstrap problem obviously has nothing to do with the warning itself. The latter has been discussed already on these mailing lists, is absolutely bening.

Paolo