diff -rN -u old-pkg-config-0.21/pkg.c new-pkg-config-0.21/pkg.c
--- old-pkg-config-0.21/pkg.c	2006-10-27 23:57:36.000000000 +0200
+++ new-pkg-config-0.21/pkg.c	2006-10-27 23:57:36.000000000 +0200
@@ -600,6 +600,11 @@
   return g_slist_sort (list, pathposcmp);
 }
 
+static int compare_package(Package *a, Package *b)
+{
+	return strcmp(a->name,b->name);
+}
+
 static void
 fill_one_level (Package *pkg, GetListFunc func, GSList **listp)
 {
@@ -672,6 +677,7 @@
 {
   GSList *tmp;
   GSList *expanded;
+  GSList *tried = NULL;
 
   expanded = NULL;
   tmp = packages;
@@ -681,6 +687,22 @@
       recursive_fill_list (tmp->data,
 			   include_private ? get_requires_private : get_requires,
 			   &expanded);
+	  if (include_private)
+	  {
+	      tried = g_slist_append(tried, ((Package*)tmp->data)->name);
+      	  GSList *extra;
+		  extra = expanded;
+		  while (extra!=NULL)
+		  {
+			Package *p = extra->data;
+			if (g_slist_find_custom(tried,p->name,strcmp)==NULL && g_slist_find_custom(tmp,p,compare_package)==NULL)
+			{
+				//printf("package name = %s\n",p->name);
+				tmp = g_slist_append(tmp,extra->data);
+			}
+			extra = extra->next;
+		  }
+	  }
 
       tmp = tmp->next;
     }