Ericsson question about glibc 2.19 compatibility and RHEL 6.5.

[Ángel González]

On 14/03/14 15:51, Ryan Arnold wrote:
> On Fri, Mar 14, 2014 at 3:51 AM, Francesco Leone
> <francesco.leone@ericsson.com>  wrote:
>> Dear folks,
>>
>> In our product we are going to introduce  RHEL 6.5 and the new version of
>> GNU C Library, glibc 2.19.
>>
>>   My questions are:
>>
>>   1) Is glibc 2.19 compatible with  RHEL 6.5 distribution?
>>
>>   2) Is glibc 2.19 compatible with java 1.7?
>>
>>
>> Looking forward an early reply
> Francesco,
>
> If your product is to run on a pristine RHEL 6.5, I believe that the
> version of glibc you need to link against is glibc 2.12.
>
> This means that if you're building a toolchain that is designed to run
> binaries on RHEL 6.5, you need to make sure your toolchain sysroot
> doesn't have a glibc version that exceeds the version on RHEL 6.5.
>
> Otherwise; you'll get lots of runtime errors where the loader (dynamic
> linker) can't find the proper versioned symbols because the system
> glibc is older than what was linked against (for instance if your
> sysroot had GLIBC 2.19).
>
> I don't know about Java compatibility with glibc 2.19.
I thought he wanted to ship a RHEL 6.5 install but with glibc 2.19, 
which should be doable. I guess it all depends on what «our product» means.