[Buildroot] [PATCH 06/12] gcc/4.9: add patch to warn about unsafe header paths

Yann E. MORIN yann.morin.1998 at free.fr
Wed Sep 10 22:10:49 UTC 2014


Thomas, All,

On 2014-09-10 22:24 +0200, Thomas Petazzoni spake thusly:
> Dear Yann E. MORIN,
> 
> On Wed, 10 Sep 2014 22:08:25 +0200, Yann E. MORIN wrote:
> 
> > > ++  temp = getenv("BR_COMPILER_PARANOID_UNSAFE_PATH");
> > > ++  if (temp && strlen(temp) > 0)
> > > ++    {
> > > ++      save_switch("-Werror=poison-system-directories", 0, NULL, false, true);
> > 
> > Here you set the --error-poison-system-direcotries for the linker...
> 
> No, that's not what's happening here. What's happening here is that if
> BR_COMPILER_PARANOID_UNSAFE_PATH is set and non-empty, then we add
> -Werror=poison-system-directories to the gcc options. This makes gcc
> behave as if -Werror=poison-system-directories was passed on the
> command line.

Ah, I see now. OK. We tell gcc to treat that warning as an error.
Of course. :-)

Forget my comment.

Regards,
Yann E. MORIN.

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