This gist includes the keepassx 2.0.2 (with Twofish support), built under a Virtual Machine with a vanilla Debian 8.3 (i386) using the following commands (as root):
apt-get install build-essential cmake libqt4-dev libgcrypt11-dev zlib1g-dev libxtst-dev makeself wget ca-certificates
ver=2.0.2
wget https://www.keepassx.org/releases/$ver/keepassx-$ver.tar.gz
tar xzf keepassx-$ver.tar.gz
cd keepassx-$ver