Using non-system glibc

[Florian Weimer]

* Mahmood Naderan via Libc-help:

> How can I use a custom glibc instead of the default system version?

Please see the parallel thread “how to link with old versions of glibc?”
for some suggestions.

If it's a just a matter of running one application with a different
glibc version, you can use the testrun.sh script in the build tree.

Thanks,
Florian