Aliases

- Allowed aliases to nest up to 10 levels.

src/Arguments.cpp

@@ -566,8 +566,12 @@ void Arguments::apply_overrides ()
 void Arguments::resolve_aliases ()
 {
   std::vector <std::string> expanded;
-  bool something = false;
+  bool something;
+  int safety_valve = 10;
 
+  do
+  {
+    something = false;
     std::vector <Triple>::iterator arg;
     for (arg = this->begin (); arg != this->end (); ++arg)
     {
@@ -603,9 +607,12 @@ void Arguments::resolve_aliases ()
       for (e = expanded.begin (); e != expanded.end (); ++e)
         this->push_back (Triple (*e, "", ""));
 
+      expanded.clear ();
       categorize ();
     }
   }
+  while (something && --safety_valve > 0);
+}
 
 ////////////////////////////////////////////////////////////////////////////////
 void Arguments::inject_defaults ()