slock-0.7 works fine. This bug is focused on amd64, which has no prior stable keywords, but hppa and x86 may want to stabilize too. This is the only change since 0.6: http://www.suckless.org/hg.rc/slock/rev/00b6d11ae0b6
amd64 stable
x86 stable
Stable for HPPA and closing. :)