After we compiled and installed libg3d under windows/cygwin, the next step would be to port something which needs it. An "easy" target was s3d because I have write permissions to all repositories and can fix problems very fast.

Recently I have submitted some patches to libg3d's ml to fix some problems under cygwin. It is a little bit tricky to get a working libg3d installation but if all dependencies are fullfilled it is just the usual ./configure ... && make && make install procedure.