In tree for 9 months, no open bugs.
Build with no problems on x86 system (stable x86 with FEATURES="test collision-protect). Tested program on a few png images for correct working, no problems encountered.
IMO can be marked stable for x86.
stable x86, thanks Myckel
Stable on amd64
Stable on alpha.
Also required for GCC 4.4.x stabilization... so blocking bug 302468
sparc stable, closing