Created attachment 393790 [details, diff]
It's not necessary anymore to patch the libsquish makefile. Build successfully tested.
I've committed this to the 9999 ebuild
In the patch I forgot to remove related USE flags: altivec, sse, sse2
*** Bug 538210 has been marked as a duplicate of this bug. ***
should be all set now in the tree; thanks for the report!
Commit message: Drop unused cpu flags now that squish is gone