17.10.2016 13:39, Michael Tokarev wrote: > (cc is gcc 6.2.0) > > I've no idea which -march is the default and what choices are available.
$ gcc -march=? gcc: error: unrecognized argument in option '-march=?' gcc: note: valid arguments to '-march=' are: g5 g6 native z10 z13 z196 z9-109 z9-ec z900 z990 zEC12 I guess g5 is the default? Thanks, /mjt