F21 system GCC changed to 4.9.0 prerelease

Josh Boyer jwboyer at fedoraproject.org
Thu Apr 10 14:06:14 UTC 2014

On Thu, Apr 10, 2014 at 6:23 AM, Jakub Jelinek <jakub at redhat.com> wrote:
> Hi!
> FYI, gcc in rawhide has been upgraded to 4.9.0 prerelease,
> please visit http://gcc.gnu.org/gcc-4.9/porting_to.html if your
> package no longer builds.  To investigate runtime rather than compile time
> issues, please consider using temporarily -fsanitize=undefined and/or
> -fsanitize=address to look for undefined behavior in the packages
> you own.

Hm.  So the kernel I tried to build this morning failed on ARM:


That cross-built locally (gcc 4.8.1) here fine before I sent it to
koji.  Anyone have any ideas on that?


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