[PATCH 05/10] Remove __need macros from errno.h (__need_Emath, __need_error_t).

[Florian Weimer]

On 05/15/2017 10:24 AM, Andreas Schwab wrote:
> On Mai 15 2017, Florian Weimer <fweimer@redhat.com> wrote:
> 
>> Is the toolchain module GCC available on PATH?
> 
> Yes, just under a different name (with the major version appended).

Okay, then we should a configure detection logic for that.

Red Hat Developer Toolset is different in this regard, either you get 
the newer GCC on the PATH as a substitute for “gcc”, or you run gcc with 
an absolute path.  I suppose those who regularly build upstream sources 
could add a symlink from /opt/rh/…/gcc to ~/bin/gcc5, where the patched 
configure script would pick it up (assuming that they do not want to 
enable DTS unconditionally).

Thanks,
Florian