Hi Pat,

On Dec 13, 2011, at 3:42 PM, Pat Riehecky wrote:

> On 12/13/2011 03:57 AM, Matthias Schroeder wrote:
>> Dear Scientific Linux Developers,
>> 
>> the SL6.2 gcc contains a fix for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48597, an issue that made igprof crash under SL 6 for our users.
>> 
>> For this fix to be fully effective, at least glibc needs to be build with the new gcc. I am not sure whether this has been done for SL6.2, so I want to make you aware of this requirement. Unfortunately this requirement is not explicit in the glibc SPEC file.
>> 
>> Best regards,
>> 
>> Matthias
> 
> Hi Matthias,
> 
> Thanks for bringing this bug to our attention.  As you noted, the SPEC file does not mandate this and our first build did not follow this process.

Nor did we...

>  However our second build was built against the 6.2 code base.  It should have the fix active.  When we get out an Alpha, if you could test this it would help verify my statement.
> 
> Right now we plan to release (when Alpha time comes):
> gcc-4.4.6-3.el6 built with glibc-2.12-1.47 (this glibc built by an earlier gcc and earlier glibc and wont be released)
> glibc-2.12-1.47 built with glibc-2.12-1.47 (as the glibc above) and gcc-4.4.6-3.el6
> 
> Does this all look right?

That looks fine.

We had a discussion here whether we should build everything with/against the new gcc. Jarek mentioned that at least in the past RH did not do so, and this might introduce some incompatibility. But maintaining full compatibility in this area can become impossible...

Matthias

> 
> Pat
> 
> -- 
> Pat Riehecky
> Scientific Linux Developer
>