I have a few problems with the drobilla series of ebuilds.
The omins ebuild needs to depend on librdf/redland as otherwise the
configure script fails (omins doesn't really depend on this, but
because the ebuild uses the combined build system this is nessessary.)
Could the 'use_with pic' and --without-pic please be removed from the
ingen and omins ebuilds. PIC will automatically be enabled for the
files that need it. And in the second case with omins' --without-pic
it completely causes the build to fail on x86_64 boxes.
-Nathan Caldwell