Comment 1 for bug 1757885

Synergy already builds on qt5. Relevant patches for Debian upstream are at https://github.com/epakai/synergy-debian/commit/e2b31c6e91b4b52f19884ffbf060cfe5b8904d92

There has also been a new release (1.9.0) from Symless in the past week. I probably need a few weeks to get to it, but I intend to package it and submit for Debian unstable. This will include the qt5 changes.