[Libmesh-devel] TBB config issue

[Kirk, B. (JSC-EG311) <ben...@na...>]

On Feb 27, 2013, at 7:53 AM, <lib...@li...> wrote
> 
> I have a user trying to configure libMesh on a Linux cluster but it keeps running into problems with TBB.  He's not alone as I have also had a few other reports of people who still receive error even after adding the --diable-tbb flag to the configure line.  Are we being overly-agressive when snooping for tbb?  I haven't really dived into this much yet but just wanted to see if anyone is aware of a quick fix.
> 
> The compile errros are attached at the bottom of this thread.
> 
> Thanks,
> Cody 

checking /usr/include/tbb/task_scheduler_init.h usability... no
checking /usr/include/tbb/task_scheduler_init.h presence... no
checking for /usr/include/tbb/task_scheduler_init.h... no
checking whether the compiler supports std::thread... no
checking whether TBB supports tbb::tbb_thread… yes



Looks like the issue is me looking for std::thread and falling back to tbb:thread, which somehow is succeeding (intel compiler likely including it) and the test is being run even if --disable-tbb is passed.  I'll add some m4 foo to skip the tbb:thread fallback when TBB is turned off.

-Ben