lib: move compat links from targetdirs to proper makefiles

@@ -57,11 +57,11 @@
 
 .KEPP_STATE:
 
 all:            $(LIBS)
 
-install:        all $(ROOTLIBS64) $(ROOTLINKS64) $(ROOTLINT64)
+install:        all $(ROOTLIBS64) $(ROOTLINKS64) $(ROOTLINT64) $(ROOTCOMPATLINKS64)
 
 lint:           lintcheck
 
 pics/%.o: %.s
                 $(COMPILE.s) -o $@ ${@F:.o=.s}