On 11 June 2012 22:27, Joseph S. Myers <jos...@codesourcery.com> wrote: > On Mon, 11 Jun 2012, Manuel López-Ibáñez wrote: > >> http://gcc.gnu.org/wiki/FAQ#stage1warnings >> >> I really don't understand why first stage or --disable-bootstrap is >> not using -w. (Probably, like most things in GCC, because nobody has >> bothered to implement it.) > > If you are building a cross compiler (so not bootstrapped), having the > warnings, even if noisy because the compiler used to build it isn't > exactly the same version as the compiler being built, is a lot better than > hiding them all. And if a file fails to build in stage 1 of a bootstrap, > having the warnings, again even if noisy, helps identify the problem more > than if only actual error messages are present (more generally, warnings > from a changed file in stage 1 of a bootstrap give you an early indication > of possible problems with a patch without needing to wait for a later > stage for a more precise set).
Fine. Added to the FAQ.
