[Boost-build] clang trunk and -mthreads

Subject: [Boost-build] clang trunk and -mthreads
From: Eric Niebler (eniebler_at_[hidden])
Date: 2013-10-02 16:47:29

I use b2 from trunk with clang from trunk under cygwin. I just rebuilt
clang from trunk, and found it no longer works with trunk b2 because of
this:

clang: error: unknown argument: '-mthreads'

  "/usr/local/clang-trunk/bin/clang++" -c -x c++ -std=gnu++11 -O0 -g
-fno-inline -Wall -g -mthreads  -DBOOST_FILESYSTEM_STATIC_L
INK=1 -DBOOST_SYSTEM_STATIC_LINK=1 -DBOOST_TEST_NO_AUTO_LINK=1
-I"../../.." -I"/cygdrive/c/boost/org/trunk" -o "../../../bin/lib
s/quick_check/test/test4.test/clang-linux-trunk/debug/link-static/threading-multi/qcheck/test4.obj"
"qcheck/test4.cpp"

Looks like clang no longer likes the -mthreads option. This should
probably be dealt with in the b2 clang.jam file, but I don't know what
to change. Any help?

-- 
Eric Niebler
Boost.org
http://www.boost.org