Mine

fken@Ades ~ $ emerge -pv openscenegraph

These are the packages that would be merged, in order:

Calculating dependencies |

!!! Invalid or corrupt dependency specification:

invalid atom: 'jpeg'

('ebuild', '/', 'dev-cpp/openscenegraph-1.2.0-r1', 'merge')

virtual/x11 jpeg tiff freetype >=media-libs/libpng-1.2 lib3ds

This package can not be installed. Please notify the
'dev-cpp/openscenegraph-1.2.0-r1' package maintainer about this problem.

fken@Ades ~ $