On Wed, 15 May 2013, Derek Gaston wrote:

One of our users needs to be able to turn off C++11 support when building 
libMesh.  This happens because of linking issues with other codes.  I
thought for sure that there was a way to do that with configure... but I can't 
see it.

Is there a way to do it?  If there isn't can it be added painlessly?

Right now there's nothing to be done but editing the gcc case in
compiler.m4 where it's added.

What I would suggest doing is removing the flags from there entirely,
then adding
https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html

to our m4 and using it (with an optional-but-default-enabled argument)
instead.

I may have time to do so myself but probably not this week.
---
Roy
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