"introduce no new bootstrap warning" criteria. was: Loop ivdebugging, patch

[Joseph S. Myers]

On Sun, 14 Jan 2001, Geoff Keating wrote:

> Perhaps we could only define -Werror on non-strange-broken platforms?
>
> You know, like Linux, Solaris, Cygwin, AIX.  If you do those, you'll
> cover probably 99% of the GCC developers.

That will break every time glibc changes in a way that causes warnings.

e.g., the "macro strcmp used without args" ones aren't reasonably fixable;
when glibc 2.2 changed the iconv prototype, that caused warnings; glibc
2.2.1 causes the "ISO C99 requires rest arguments to be used" warnings
every place printf is used with just one argument.

-- 
Joseph S. Myers
jsm28@cam.ac.uk