Comment 5 for bug 1198123

The following seems to work as a workaround for me:

cd /usr/lib/clang/3.2/
sudo ln -s /usr/lib/llvm-3.2/lib/clang/3.2/include

It looks like there's a mismatch between where the include files are installed to and where clang expects to find them

Diagnosed with the help of:

echo '#include <stdarg.h>' | clang -xc -v -