Ports that list glew among their dependencies might not work properly on a pure-Wayland desktop. This port is identical to the one in the opt repository except that it inserts the definition SYSTEM=linux-egl in the call to 'make'. The resulting package should allow glew-dependent ports to run as expected. Add the following line to /etc/prt-get.aliases if you prefer not to make an overlay containing copies of your glew-dependent ports with the "Depends on" line changed. glew-egl: glew