Re: [fedora-arm] F21 system GCC changed to 4.9.0 prerelease

[Josh Boyer]

On Thu, Apr 10, 2014 at 6:23 AM, Jakub Jelinek <jakub(a)redhat.com&gt; 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:

http://koji.fedoraproject.org/koji/getfile?taskID=6723963&name=build.log

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

josh

F21 system GCC changed to 4.9.0 prerelease

[Josh Boyer]

On Thu, Apr 10, 2014 at 10:06 AM, Josh Boyer <jwboyer(a)fedoraproject.org&gt; wrote:
>  On Thu, Apr 10, 2014 at 6:23 AM, Jakub Jelinek
> <jakub(a)redhat.com&gt; 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:
>
>  http://koji.fedoraproject.org/koji/getfile?taskID=6723963&name=build.log
>
>  That cross-built locally (gcc 4.8.1) here fine before I sent it to
>  koji.  Anyone have any ideas on that? 
An f20 scratch build of the same SRPM has progressed past the failure
point above.  I suppose I'll dig into what changed in this regard and
see if there's a fix that works for both.  In the meantime, if anyone
knows what might have changed in gcc 4.9 to cause this, please speak
up.

http://koji.fedoraproject.org/koji/taskinfo?taskID=6724145

josh