On Sun, Nov 15, 2015 at 08:52:00PM +0100, Gerald Pfeifer wrote: > On Thu, 12 Nov 2015, William A. Mahaffey III wrote: > > I pkg-installed amd64-gcc over the weekend hoping for Graphite > > (auto-loop parallelization) support, but no go. > > When you say "amd64-gcc" where did you obtain that from? As a > FreeBSD port/package, or somewhere else?
This is a port which is only intended to be used for cross building base with a modern gcc, it is a "bastardized gcc" that should only be used as an external toolchain for building base. > > > just did a 'portsnap fetch upgrade' & there is now a port > > for amd64-gcc, but it includes no files & no pkg-descr file. > > This is a little weird. I have packaged GCC 4.6 (lang/gcc46), > GCC 4.7 (lang/gcc47), GCC 4.8 (lang/gcc48), GCC 4.9 (lang/gcc49), > GCC 5 (lang/gcc5 and lang/gcc5-devel) and GCC 6 snapshot (lang/gcc6-devel) > as well as the "canonical" version of GCC (lang/gcc, currently > GCC 4.8 and in the process of being moved to GCC 4.9). > > All of these build and package on amd64, feature pkg-descr, etc. > And as a FreeBSD user leveraging the official FreeBSD Ports Collection > is the recommended approach. > > None of them would be called amd64-gcc or similar, though. > > > I have gotten as far as running 'make showconfig' in the various gcc* & > > amd64-gcc directories to see what info I could get on default config > > options. In all cases they gave options & said to run 'make config' to > > change options. I didn't even see a 'config:' entry in the Makefiles > > (probably included from elsewhere, but I didn't chase it). > > Let's focus on lang/gcc5-devel, which is the most reasonable version > to enable Graphite for right now since GCC 5 is the current release > series and hence most stable, but also advanced, and the -devel port > is more suitable for making changes like this than the "production" > variant. > > And indeed lang/gcc5-devel/Makefile already had the following lines, > which is how options handling actually works: > > OPTIONS_DEFINE= BOOTSTRAP > OPTIONS_DEFINE_i386= JAVA > OPTIONS_DEFINE_amd64= JAVA > OPTIONS_DEFAULT= BOOTSTRAP > OPTIONS_DEFAULT_i386= JAVA > OPTIONS_DEFAULT_amd64= JAVA > > > I see no configure files for any of the gcc ports (I have the entire > > ports tree downloaded & local, & freshly updated as of a few min. ago). > > What is the canonical/BPP (FreeBSD 9.3R) way of recompiling a port with > > different config flags ? > > > > I did find ports/pkgs for the 2 main components apparently needed for > > Graphite support (cloog & ppl) & pkg-installed them over the weekend, > > so I am ready to go on that front. > > If you check out the GCC release notes at > https://gcc.gnu.org/gcc-5/changes.html > you will find that "The Graphite framework for loop optimizations no > longer requires the CLooG library, only ISL version 0.14 (recommended) > or 0.12.2." > > I just committed changes to lang/gcc6-devel and lang/gcc5-devel to > add support for Graphite with a new option GRAPHITE. This is off > by default, but you can enable it, rebuild the port, and then have > what you've been looking for. > > Gerald > _______________________________________________ > [email protected] mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain > To unsubscribe, send any mail to "[email protected]"
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