[Boost-build] Adding options for clang toolset creates invalid command line

Subject: [Boost-build] Adding options for clang toolset creates invalid command line
From: Edward Diener (eldiener_at_[hidden])
Date: 2013-10-14 11:49:11

In trying to configure clang for Windows I put this in my user 
user-config.jam:

using clang : : 
C:/Programming/VersionControl/bclang/bin/Release/clang.exe : 
<cxxflags>"--driver-mode=cl -D_HAS_EXCEPTIONS=0 /GR-" ;

But now when I use clang to compile I get this invalid command line:

"C:/Programming/VersionControl/bclang/bin/Release/clang.exe" -c -x c++ 
--driver-mode=cl -D_HAS_EXCEPTIONS=0 /GR- -O0 -g -fno-inline -Wall 
-pedantic -g  -DBOOST_ALL_NO_LIB=1 -I"..\..\.." -o 
"..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-linux-3.4\debug\add_const_test.obj" 
"add_const_test.cpp"

How do I workaround this problem ?