Re: [2.6 patch] add -Werror-implicit-function-declaration to CFLAGS

Heiko Carstens
2006-07-07T07:51:13Z

> > Currently, using an undeclared function gives a compile warning, but it
> > can lead to a nasty to debug runtime stack corruptions if the prototype
> > of the function is different from what gcc guessed.
> >
> > With -Werror-implicit-function-declaration we are getting an immediate
> > compile error instead.
> This patch broke (-rc1):
>
> sparc allnoconfig build
> ia64 allnoconfig build
> ppc64 allnoconfig build
>
> x86_64 succeded an allnoconfig build
>
> I did not try other architectures. We need to fix the allnoconfig cases
> at least for the popular architectures before applying this patch
> otherwise it will create too much trouble/noise.

s390 builds with defconfig and allnoconfig and a few other variants as well.