Hm, had that in my tree too already. Slightly different though, see attached tarballe.
Defenetly your work is much better. I forgot dependency on libpng, math
lib and zlib. You only do not install .html from ${WRKSRC}/doc. Works
fine for me on i386 arch.
# import -window root desk.png
# du -h desk.png
124K desk.png
# optipng -q desk.png
# du -h desk.png
78.0K desk.png
