* Generate makefile for the root system, and process

          subcomponents correctly

          For issue #61

src/backends/ocarina-backends-build_utils.adb

@@ -1392,53 +1392,56 @@ package body Ocarina.Backends.Build_Utils is
             Fd : File_Descriptor;
 
          begin
-            --  If the current system is not the root system
-            --  (e.g. case of a deep hierarchy with systems inside
-            --  systems, no source has been generated, we exit
-            --  immediatly,
 
-            if not Is_Directory (Get_Name_String (Dir_Name)) then
-               return;
-            end if;
-
-            --  else, we create the makefile
+            if Is_Directory (Get_Name_String (Dir_Name)) then
+               --  We create a makefile iff. the current system is the
+               --  root system. In the case of ther system, e.g. case
+               --  of a deep hierarchy with systems inside systems, no
+               --  source has been generated.
 
-            Enter_Directory (Dir_Name);
+               Enter_Directory (Dir_Name);
 
-            Fd := Create_File ("Makefile", Text);
-            if Fd = Invalid_FD then
-               raise Program_Error;
-            end if;
+               Fd := Create_File ("Makefile", Text);
+               if Fd = Invalid_FD then
+                  raise Program_Error;
+               end if;
 
-            --  Setting the output
+               --  Setting the output
 
-            Set_Output (Fd);
+               Set_Output (Fd);
 
-            Write_Line ("###################################################");
-            Write_Line ("# This Makefile has been generated automatically  #");
-            Write_Line ("# by the Ocarina AADL toolsuite.                  #");
-            Write_Line ("# Do not edit this file, all your changes will    #");
-            Write_Line ("# be overridden at the next code generation.      #");
-            Write_Line ("###################################################");
-            Write_Eol;
-            Write_Str ("SUBDIRS = $(filter-out Makefile, $(wildcard *))");
-            Write_Eol;
-            Write_Line ("all:");
-            Write_Line
-              (ASCII.HT &
-                 "set -e; for d in $(SUBDIRS); do $(MAKE) -C $$d ; done");
-            Write_Eol;
-            Write_Line ("clean:");
-            Write_Line
-              (ASCII.HT &
-                 "set -e; for d in $(SUBDIRS); do $(MAKE) " &
-                 "clean -C $$d ; done");
+               Write_Line
+                 ("###################################################");
+               Write_Line
+                 ("# This Makefile has been generated automatically  #");
+               Write_Line
+                 ("# by the Ocarina AADL toolsuite.                  #");
+               Write_Line
+                 ("# Do not edit this file, all your changes will    #");
+               Write_Line
+                 ("# be overridden at the next code generation.      #");
+               Write_Line
+                 ("###################################################");
+               Write_Eol;
+               Write_Str ("SUBDIRS = $(filter-out Makefile, $(wildcard *))");
+               Write_Eol;
+               Write_Line ("all:");
+               Write_Line
+                 (ASCII.HT &
+                    "set -e; for d in $(SUBDIRS); do $(MAKE) -C $$d ; done");
+               Write_Eol;
+               Write_Line ("clean:");
+               Write_Line
+                 (ASCII.HT &
+                    "set -e; for d in $(SUBDIRS); do $(MAKE) " &
+                    "clean -C $$d ; done");
 
-            --  Close the file
+               --  Close the file
 
-            Close (Fd);
-            Set_Standard_Output;
-            Leave_Directory;
+               Close (Fd);
+               Set_Standard_Output;
+               Leave_Directory;
+            end if;
 
             --  Generate the makefiles of all process subcomponents