[PATCH] libc++: support NaCl when building thread.cpp

JF Bastien jfb at chromium.org
Mon Dec 1 17:24:52 PST 2014

Hi dschuff, danalbert,

NaCl shouldn't include sysctl.h when trying to determine std::thread::hardware_concurrency, it should instead use sysconf(_SC_NPROCESSORS_ONLN) through unistd.h. No test needs to be changed, since hardware_concurrency.pass.cpp already tests that std::thread::hardware_concurrency > 0.


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