lcms is slotted, and the depend doesn't specify any slot... therefore not pulling in the correct depend.
Just remove lcms dependency http://lists.blender.org/pipermail/bf-committers/2010-November/029595.html http://lists.blender.org/pipermail/bf-committers/2011-May/031933.html
+ 23 Jan 2012; Samuli Suominen <ssuominen@gentoo.org> blender-2.57-r1.ebuild, + blender-2.60a.ebuild: + Use SLOT dependencies for lcms, libpng and tiff wrt #390397