F22 System Wide Change: GCC5

[Josh Boyer]

On Wed, Jan 14, 2015 at 9:28 AM, Jakub Jelinek <jakub at redhat.com> wrote:
> On Wed, Jan 14, 2015 at 09:12:42AM -0500, Jaroslav Reznik wrote:
>> ----- Original Message -----
>> > On Wed, Jan 14, 2015 at 02:55:15PM +0100, Zbigniew Jędrzejewski-Szmek wrote:
>> > > http://gcc.gnu.org/gcc-5/porting_to.html → 404
>> >
>> > That will be added likely after the test mass rebuild with what we find
>> > during that.
>>
>> Do you have any estimate when it will be done? F22 schedule is/will be pretty
>> tight. We already have problem scheduling mass rebuild and I expect GCC 5
>> would require as long as possible period to fix issues/build problems. This
>
> How is that different from any other past Fedora releases (with the
> exception of F21)?  If I remember well, at least starting with GCC 4.3 (March 2008)
> new GCC was deployed always in the spring release of Fedora, we've skipped
> 4.2 before that and as there was no spring release last year, GCC 4.9 was
> kind of an exception too.

The difference this time is that FESCo decided to set a time-based
schedule and adhere to it.  The past two releases were set based on
submitted Changes (with F21 being weird all around).  Before that, the
schedule was time-based but not strictly stuck to which led to lots of
slips.  Essentially, this is an attempt to _actually_ do a time-based
schedule.

That being said, FESCo is discussing the schedule again today because
there's no room for a mass rebuild at all.  It will be interesting to
see if they actually stick to the plan and defer any Change that
requires a mass rebuild.

josh