Ubuntu clang version 3.8.0-svn251449-1~exp1 (trunk) (based on LLVM 3.8.0) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin/. Found candidate GCC installation: /usr/bin/./../lib/gcc/x86_64-linux-gnu/5.2.1 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.2.1 Selected GCC installation: /usr/bin/./../lib/gcc/x86_64-linux-gnu/5.2.1 Candidate multilib: .;@m64 Selected multilib: .;@m64