[Bug libstdc++/56482] missing -lpthread in configure when checking for pthreads_num_processors_np

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56482



--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2013-02-28 
14:29:10 UTC ---

Actually that might not be true ... the other functions used in thread.cc could

be linked to weak symbols.