blender-2.42 fails to compile if aalib is not installed. the ebuild is installed as like nothing went wrong but in fact the blender binary is not compiled and not installed. the ebuild does not state depending on aalib which causes this error. proposed fix: adding aalib as a dependency for emerging blender-2.42
MAKEOPTS="-j1" emerge blender &> emerge.log Attach the log here, post emerge --info and reopen then.