Hi Ben, Ben Woodcroft <b.woodcr...@uq.edu.au> skribis:
> Anyway, to move forward I created a repo so that package recipes can > be modified to use a GCC that has been optimised for a particular > architecture. I put it out there so that it is more than just a patch > on this ML, but I'd be happy to incorporate it into Guix proper if > that is desired. > https://github.com/wwood/cpu-specific-guix > > For instance, to build DIAMOND optimised for sandybridge: > > GUILE_LOAD_PATH=/path/to/cpu-specific-guix:$GUILE_LOAD_PATH\ |guix > build -e '(begin (use-modules (cpu-specific-guix) (gnu packages > bioinformatics))\ (cpu-specific-package diamond "sandybridge"))'| That’s a neat hack! It’s a bit of a sledgehammer, in that we could achieve this without rebuilding GCC, I think. For instance, we could create a ‘gcc’ wrapper that automatically passes “-march=foo” on the command line of the real ‘gcc’, no? Thanks for sharing! Ludo’.
