Summary says it all, they should be slotted, as they can be installed simultaneously. Some applications and libraries look for a specific version as well. Reproducible: Always Steps to Reproduce: 1. emerge -vD libgnomecanvasmm 2. ACCEPT_KEYWORDS="~x86" emerge -vD libgnomecanvasmm Actual Results: The 2.6.x version replaces the 2.0.x version instead of installing alongside. Expected Results: Install each package in different slots.
Not to mention, some apps wont compile correct without 2.0 present (eg. cdrdao will not build gcdmaster since it cannot find the 2.0 lib).
this is already fixed, although the 2.0 slots weren't really correct, fixed that too thnx for the report