games-emulation/melonds-libretro,fbalpha-libretro,games-emulation/citra-libretro: emerge returns 404

[douknoukkem]

The following packages gives 404 when emerging:

games-emulation/melonds-libretro-1.0_pre20170907
games-emulation/fbalpha-libretro-1.0_pre20170927
games-emulation/fbalpha-libretro-1.0_pre20171123
games-emulation/citra-libretro-1.0_pre20170916
games-emulation/citra-libretro-1.0_pre20171111
games-emulation/citra-libretro-1.0_pre20180314

-9999 versions of all packages work

[barbudreadmon]

FYI i'm maintaining a fork at https://github.com/barbudreadmon/abendbrot

NB : i don't maintain snapshots though