The files /usr/lib/ocaml/pervasives.cmi and /usr/lib/ocaml/lablgtk/gPack.cmi
make inconsistent assumptions over interface Pervasives
make: *** [src/gtk/configwin/configwin_types.cmx] Error 2
make: *** Waiting for unfinished jobs....
 
!!! ERROR: net-p2p/mldonkey-2.5.16-r5 failed.
!!! Function src_compile, Line 50, Exitcode 2
!!! (no error message)

Se soluciona:

emerge --oneshot lablgl
emerge --oneshot lablgtk
emerge net-p2p/mldonkey