Added some minimum versions for Qt, QtXdg, LXQt

debian/control

@@ -7,14 +7,14 @@ Section: x11
 Priority: optional
 Build-Depends: debhelper (>= 9),
                cmake (>= 3.0.2),
-               libkf5windowsystem-dev,
-               liblxqt0-dev,
-               libqt5x11extras5-dev,
-               libqt5xdg-dev,
+               libkf5windowsystem-dev (>= 5.3),
+               liblxqt0-dev (>= 0.9),
+               libqt5x11extras5-dev (>= 5.3),
+               libqt5xdg-dev (>= 1.2),
                libx11-dev,
                pkg-config,
-               qttools5-dev,
-               qttools5-dev-tools,
+               qttools5-dev (>= 5.3),
+               qttools5-dev-tools (>= 5.3),
 Standards-Version: 3.9.6
 Vcs-Browser: http://anonscm.debian.org/cgit/pkg-lxqt/lxqt-sudo.git
 Vcs-Git: git://anonscm.debian.org/pkg-lxqt/lxqt-sudo.git