link with panda

pandatool/src/miscprogs/Sources.pp

@@ -1,6 +1,8 @@
 #define LOCAL_LIBS \
   progbase
 #define OTHER_LIBS \
+  putil:c panda:m \
+  express:c pandaexpress:m \
   dtoolutil:c dtoolbase:c dconfig:c dtoolconfig:m dtool:m pystub
 #define UNIX_SYS_LIBS m