boost-di : C++14 Dependency Injection Library ( https://boost-ext.github.io/di )
flatbuffers : Memory Efficient Serialization Library ( http://google.github.io/flatbuffers/ )
libassuan : IPC library used by GnuPG and GPGME ( http://www.gnupg.org/related_software/libassuan/index.en.html )
libbson : Library routines related to building,parsing and iterating BSON documents ( https://github.com/mongodb/mongo-c-driver/tree/master/src/libbson )
libcgroup : Tools and libraries to configure and manage kernel control groups ( http://libcg.sourceforge.net/ )
libdrizzle : Snapshot of dev-db/drizzle sources which can be built as shared library ( https://github.com/openresty/drizzle-nginx-module )
libdwarf : Library for extracting DWARF data from code objects ( https://www.prevanders.net/dwarf.html )
libgcrypt : General purpose crypto library based on the code used in GnuPG ( http://www.gnupg.org/ )
libgpg-error : Contains error handling functions used by GnuPG software ( http://www.gnupg.org/related_software/libgpg-error )
libiio : Library for interfacing with IIO devices ( https://github.com/analogdevicesinc/libiio )
libksba : X.509 and CMS (PKCS#7) library ( http://www.gnupg.org/related_software/libksba )
libsodium : A portable fork of NaCl, a higher-level cryptographic library ( https://github.com/jedisct1/libsodium )
mongo-c-driver : Client library written in C for MongoDB ( https://github.com/mongodb/mongo-c-driver )
mongo-cxx-driver : C++ Driver for MongoDB ( https://mongocxx.org )
msgpack : MessagePack is a binary-based efficient data interchange format ( http://msgpack.org/ https://github.com/msgpack/msgpack-c/ )
olm : An implementation of the Double Ratchet cryptographic ratchet in C++ ( https://git.matrix.org/git/olm/about/ )
sregex : A non-backtracking regex engine matching on data streams ( https://github.com/openresty/sregex )
unibilium : A very basic terminfo library ( https://github.com/mauke/unibilium/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a mva
For Paludis use this rsync : rsync://gentoo.zugaina.org/mva-portage
If you have a problem : ycarus(-at-)zugaina.org