On April 26, 2016 8:39:28 PM GMT+02:00, Marc Glisse <marc.gli...@inria.fr> wrote: >On Tue, 26 Apr 2016, Bernd Edlinger wrote: > >> as we all know, it's high time now to adjust the minimum supported >> gmp/mpfr/mpc versions for gcc-7. >> >> So this attached patch is now targeting at only supporting the >currently >> latest relased gmp-6.1.0, mpfr-3.1.4 and mpc-1.0.3, instead of trying >> to support all previous versions, especially in-tree, but also >without the >> in-tree configuration the previously used versions are really >creating >> trouble nowadays. > >For in-tree builds, requiring the latest version makes sense to me. >When >building gcc with a pre-installed gmp/mpfr/mpc (say the one provided by > >your linux distribution), that's much more painful, and the benefit is >not >as clear. What "trouble" do you have in mind? > >> To support gmp-6.1.0 in-tree we have to set AM_CFLAGS=-DNO_ASM >> as already done with mpfr. This was already discussed recently on >this list. > >Note that gmp-6.1.1 is supposed to be out any day now and will not >require >-DNO_ASM anymore.
I agree with Marc here - we should only update the version used by download prerequisites and document that this is the only supported version for in-tree builds. Richard.
