Re: [gentoo-qa] QA confusion: Upstream qa issues -> failing to install

[Markos Chandras]

On Wed, Aug 25, 2010 at 05:55:07PM +0200, Diego Elio Pettenò wrote:
> Il giorno mer, 25/08/2010 alle 17.20 +0300, Markos Chandras ha scritto:
> > On Wed, Aug 25, 2010 at 01:42:12PM +0200, Thilo Bangert wrote:
> > >  * QA Notice: Package has poor programming practices which may compile
> > >  *            fine but exhibit random runtime failures.
> > >  * closefromtest.c:46: warning: implicit declaration of function
> > > ‘closefrom’
> > >
> > This is a rather common bug for 64bit arches
>
> Actually no; the one common for 64bit arches is "implicit pointer
> conversion" warning (which may be caused by an implicit declaration,
> since implicit declarations default to int as return type!) that is
> always fatal on 64-bit (it would crash the code as the returned pointer
> would be crippled.
>
Diego thanks for the info. Can you please explain me why this is fatal only
with certain cflags combination? If I use -march=native -O2 -pipe the
compilation doesn't fail but if I add -ggdb -Wall the compilation fails. I
don't quite understand why so I would be grateful if you could enlighten me


-- 
Markos Chandras (hwoarang)
Gentoo Linux Developer
Web: http://hwoarang.silverarrow.org
Key ID: 441AC410
Key FP: AAD0 8591 E3CD 445D 6411 3477 F7F7 1E8E 441A C410