- Added the Qt5 PPA to my system per instructions here https://launchpad.net/~beineri/+archive ... 532-trusty and then installed all the packages listed there with apt-get.
- Installed g++-4.9 per instructions here http://askubuntu.com/questions/428198/g ... -on-ubuntu and then updated the /usr/bin links to point at 4.9 versions.
- Installed the g++-4.9-multilib package.
- Ran ./configure --with-qt-dir=/opt/qt53
// Ric V