Provide all needed libraries to the linker (Closes Debian bug #555076)
--- a/src/src.pro
+++ b/src/src.pro
@@ -209,6 +209,8 @@
     SOURCES += simplewizard_mac.cpp \
                winstyleoverrides.cpp
 
+    LIBS += -lX11 -lz
+
     HEADERS -=  Bootstrapper/iTunesBootstrapper.h \
                 Bootstrapper/PluginBootstrapper.h