On Sep 27 2016, Jakub Jelinek <ja...@redhat.com> wrote: > On Tue, Sep 27, 2016 at 11:40:19AM +0200, Marek Polacek wrote: >> GCC 4.3 stupidly errors on this with >> error: unrecognized command line option "-Wno-implicit-fallthrough" >> so use -Wno-error instead. > > I'm not sure I like this, then we'll see even during stage2/stage3 lots of > warnings in those files and other kinds of errors will not be reported. > And, the surrounding lines show that we already use -Wno-unused or > -Wno-strict-aliasing on other files. > > My preference would be configure test for whether -Wno-implicit-fallthrough > works, and using @W_NO_IMPLICIT_FALLTHROUGH@ in there or something similar > (or stick that into a make variable and use $(W_NO_IMPLICIT_FALLTHROUGH)).
Perhaps some general construct that suppresses -Wno-foo in stage1 only? Andreas. -- Andreas Schwab, SUSE Labs, sch...@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."
