On 24.11.2016 19:10, Jose E. Marchesi wrote: > > I'm pretty confident that --with-cpu=ultrasparc won't do any harm in > 64-bit mode, but Jose (CC'ed as gcc upstream) will hopefully correct > me here if I'm wrong. > > The cpu selected in --with-cpu impacts both -m64 and -m32 in a biarch > compiler. However, I can't say anything about the patch since I lack > the most basic context here, i.e. I have no idea what the contents of > that rules2 file are.
The patches to configure --with-cpu-32= and --with-cpu-64= are availabe in GCC 6, so we should use them and ensure that the defaults for the sparc/64 and sparc64, and sparc and sparc64/32 targets match. Just forcing ultrasparc for all multilib variants seems to be questionable. Btw, is there any business with the Debian sparc port, or is this just some exercise? Matthias