Add some defines for Wayland support.

--- mkspecs/common/bsd/bsd.conf.orig	2017-07-01 22:01:46 UTC
+++ mkspecs/common/bsd/bsd.conf
@@ -28,3 +28,8 @@ QMAKE_RANLIB            =
 
 QMAKE_STRIP             = strip
 QMAKE_STRIPFLAGS_LIB   += --strip-unneeded
+
+QMAKE_LIBS_WAYLAND_CLIENT = -lwayland-client
+QMAKE_LIBS_WAYLAND_SERVER = -lwayland-server
+QMAKE_WAYLAND_SCANNER   = wayland-scanner
+QMAKE_LIBS_EGL          = -lEGL