- # Prefix variables are supported beginning with EAPI 3, or when EPREFIX
- # is non-empty (implying that EPREFIX support is required in the
- # current environment, regardless of EAPI). For EAPIs prior to 3,
- # ebuild helpers rely on these variables only when USE=prefix is
- # enabled. This is safe because the prefix flag should be masked in all
- # non-prefix profiles, and older EAPIs would otherwise be useless with
- # prefix configurations. This brings compatibility with the prefix
- # branch of portage, which also supports EPREFIX for all EAPIs (for
- # obvious reasons).
+ # Prefix variables are supported beginning with EAPI 3, or when
+ # force-prefix is in FEATURES, since older EAPIs would otherwise be
+ # useless with prefix configurations. This brings compatibility with
+ # the prefix branch of portage, which also supports EPREFIX for all
+ # EAPIs (for obvious reasons).