GMP version: 6.0.0a (Installed through Homebrew)
Compiler: Clang Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
uname -a: Darwin Yihangs-MacBook-Pro.local 14.5.0 Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64 x86_64