* search using the real package name instead of the uppercased one so that an as-is cased package will be found as well

compiler/fpcp.pas

@@ -197,7 +197,7 @@ implementation
       end;
 
     begin
-      filename:=packagename^;
+      filename:=realpackagename^;
       result:=search_path_list(packagesearchpath);
     end;