Requirements:

 - Brew
 - OpenSSL
 - Boost
 - BerkeleyDB 4
 - Qt
 - QREncode (optional)
 - DBUS (optional)
 
Installing:

$ xcode-select --install
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
$ brew install make boost openssl berkeley-db@4 qt 
(optional)$ brew install qrencode dbus

Building:
$ export PATH="/usr/local/opt/qt/bin:$PATH"
$ git clone https://github.com/GOSTSec/gostcoin.git
$ cd gostcoin
$ qmake RELEASE=1 USE_BUILD_INFO=1 [USE_QRCODE=1] [USE_DBUS=1]
$ make

Find GOSTCoin-Qt app in current directory.