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

Dave Jones
2006-07-06T18:22:07Z

On Thu, Jul 06, 2006 at 06:37:28PM +0200, Adrian Bunk wrote:
> 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.
>
> Signed-off-by: Adrian Bunk <bunk@stusta.de>

I've been carrying pretty much the same patch in Fedora for months,
and making sure it still builds across x86/x86-64/s390/ia64/ppc32/ppc64.
It saves a lot of time when you're building a large heavily modular kernel.
(like that from a distro config say)

Signed-off-by: Dave Jones <davej@redhat.com>

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