#>=sys-block/zram-init-3.0

>=sys-fs/udev-223
>=virtual/udev-218
>=virtual/libgudev-231
>=dev-libs/libgudev-231
>=virtual/libudev-216
>=sys-fs/eudev-1.3

#>=virtual/perl-ExtUtils-Manifest-1.700.0
#>=dev-lang/perl-5.22.1

#>=media-libs/mesa-9999
>=sys-devel/llvm-9999
#>=x11-base/xorg-drivers-9999
#>=x11-base/xorg-server-9999

#>=dev-util/boost-1.58.0
#>=dev-util/boost-build-1.58.0

# new upstream fail (wtf?)
=sys-devel/libtool-2.4.3

=sys-libs/glibc-2.18*
#>=sys-libs/glibc-2.22
#>=sys-kernel/linux-headers-3.19
#>=sci-libs/proj-4.8.0