Don't hardcode g++ in Makefile
Don't hardcode g++ in Makefile


Former-commit-id: 5ff7f6060a44a9181471e233bf6d0d6c702a97cf
Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide