Fix dependencies of callgraph and gui

src/plugins/callgraph/dune

@@ -16,7 +16,7 @@
   (modules Cg_viewer)
 ;  (private_modules Cg_viewer)
   (flags -open Frama_c_kernel -open Frama_c_gui -open Callgraph)
-  (libraries callgraph frama-c.kernel frama-c.gui)
+  (libraries callgraph frama-c.kernel frama-c.gui ocamlgraph.dgraph)
 )
 
 (plugin (optional) (name callgraph) (libraries frama-c-callgraph.gui) (site (frama-c plugins_gui)))

src/plugins/gui/dune

@@ -28,7 +28,7 @@
         history
         gui_printers
         design
-        analyses_manager file_manager project_manager debug_manager
+        analyses_manager file_manager project_manager
         help_manager
         property_navigator GSourceView gtk_compat
         dgraph_helper
@@ -51,5 +51,9 @@
       (ocamlgraph.dgraph -> dgraph_helper.yes.ml)
       ( -> dgraph_helper.no.ml)
    )
+   (select debug_manager.ml from
+      (ocamlgraph.dgraph -> debug_manager.ok.ml)
+      ( -> debug_manager.ko.ml)
+   )
 )
 )