Can someone decipher this one? As far as portage errors go, this is the
most nonsensical one I've seen in a long time (before you ask, boost and
boost-build are not masked anywhere):
===================
emerge -auDN --with-bdeps=y @world
[...]
!!! The following update has been skipped due to unsatisfied dependencies:
dev-libs/boost:0
!!! All ebuilds that could satisfy "=dev-util/boost-build-1.58*" have
been masked.
!!! One of the following masked packages is required to complete your
request:
- dev-util/boost-build-1.58.0::gentoo (masked by: )
(dependency required by "dev-libs/boost-1.58.0-r1::gentoo" [ebuild])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.
===================
I've also tried --backtrack=20 (then 30, the 40, then 50), with the same
result.