xlockmore-5.28ALPHA00 as of 19 November 2008, the maintained version of xlock

5.28ALPHA00
  invert: build failures from Sun Studio Express C++ like this:
    Error, manymatchover: Overloading ambiguity between "operator^(const
    TwoJet, double)" and "built-in operator^(int, int)" fixed by casting
    to double, thanks to Tim Mooney <Tim.Mooney AT ndsu.edu>.
  life3d: 4 more rhombic dodecahedron S3/B3 patterns including a period 4
    pattern (only period 2 and less S3/B3 patterns left from Bays' papers).