{ stdenv, fetchFromGitHub, pkgconfig, autoreconfHook, openssl, db48, boost , zlib, miniupnpc, qt4, utillinux, protobuf, qrencode, libevent , withGui }: with stdenv.lib; stdenv.mkDerivation rec { name = "bitcoin" + (toString (optional (!withGui) "d")) + "-unlimited-" + version; version = "1.0.2.0"; src = fetchFromGitHub { owner = "bitcoinunlimited"; repo = "bitcoinunlimited"; rev = "v${version}"; sha256 = "17cmyns1908s2rqs0zwr05f3541nqm2pg08n2xn97g2k3yimdg5q"; }; nativeBuildInputs = [ pkgconfig autoreconfHook ]; buildInputs = [ openssl db48 boost zlib miniupnpc utillinux protobuf libevent ] ++ optionals withGui [ qt4 qrencode ]; configureFlags = [ "--with-boost-libdir=${boost.out}/lib" ] ++ optionals withGui [ "--with-gui=qt4" ]; meta = { description = "Peer-to-peer electronic cash system (Unlimited client)"; longDescription= '' Bitcoin is a free open source peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending. The Bitcoin Unlimited (BU) project seeks to provide a voice to all stakeholders in the Bitcoin ecosystem. Every node operator or miner can currently choose their own blocksize limit by modifying their client. Bitcoin Unlimited makes the process easier by providing a configurable option for the accepted and generated blocksize via a GUI menu. Bitcoin Unlimited further provides a user-configurable failsafe setting allowing you to accept a block larger than your maximum accepted blocksize if it reaches a certain number of blocks deep in the chain. The Bitcoin Unlimited client is not a competitive block scaling proposal like BIP-101, BIP-102, etc. Instead it tracks consensus. This means that it tracks the blockchain that the hash power majority follows, irrespective of blocksize, and signals its ability to accept larger blocks via protocol and block versioning fields. If you support an increase in the blocksize limit by any means - or just support Bitcoin conflict resolution as originally envisioned by its founder - consider running a Bitcoin Unlimited client. ''; homepage = https://www.bitcoinunlimited.info/; maintainers = with maintainers; [ DmitryTsygankov ]; license = licenses.mit; platforms = platforms.unix; }; }