[arch-dev-public] i686 and SSE2

Allan McRae allan at archlinux.org
Wed Sep 28 03:10:30 UTC 2016

Just to summarise what I have taken from discussion surrounding this so
it does not stagnate:

1) Changing i686 to either i686 + SSE or i786 is not seen to be a good idea

2) There are suggestions we look into providing something more optimised
than x86_64, but it not clear what platform(s) people are looking to

3) Autobuilding more the optimised platforms would be great, but runs
into the same issue we have with database signing and security of such a

The most pressing issue is #1.  So lets get back to the issue of the
increasing amount of software requiring SSE2.  How do we solve this?

It would be "simple" to add an SSE2 detection hook into the filesystem
package that aborts any pacman transaction attempting to install a list
of packages on i686 systems without SSE2 support.  Is that a viable

Any other suggestions?


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