On 25 April 2016 at 10:58, zxuiji wrote: > Try looking at the output before you reply please You mean this output? https://gcc.gnu.org/ml/gcc-help/2016-04/msg00093.html Try using a proper email client, not a broken web gateway. Anyway, I did look at the full output on nabble, and I don't see a GCC problem. Try a mingw mailing list.