I am saying the default on Linux is gcc. On Fri, Jan 4, 2019 at 9:33 AM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On Fri, 4 Jan 2019 at 15:32, Peng Yu <pengyu.ut@xxxxxxxxx> wrote: > > > > The options are the same for this purpose. I am just running the test > > on Mac OS X. But I could use Linux as well. I don't think the results > > are different. > > I don't care what OS you're using, I only care what compiler you're > using. You're not using GCC, you're using Clang pretending to be GCC. > That's still not GCC, it's Clang. > -- Regards, Peng