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 support. 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 key. 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 solution? Any other suggestions? Allan