[multiple changes]

2009-06-23  Pascal Obry  <obry@adacore.com>

	* s-strhas.adb, s-strhas.ads: Minor reformatting.

2009-06-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch10.adb (Install_Limited_Withed_Unit): a null procedure does
	not indicate that the enclosing unit needs a body.

From-SVN: r148836

gcc/ada/ChangeLog

+2009-06-23  Pascal Obry  <obry@adacore.com>
+
+	* s-strhas.adb, s-strhas.ads: Minor reformatting.
+
+2009-06-23  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch10.adb (Install_Limited_Withed_Unit): a null procedure does
+	not indicate that the enclosing unit needs a body.
+
 2009-06-23  Emmanuel Briot  <briot@adacore.com>
 
 	* prj-conf.ads, prj-conf.adb: New files part of the project manager.

gcc/ada/s-strhas.adb

@@ -35,18 +35,26 @@ package body System.String_Hash is
    --  the algorithm used in GNU Awk and the ndbm substitute SDBM by
    --  Ozan Yigit.
 
-   function Hash (Key : Key_Type) return Hash_Type
-   is
+   ----------
+   -- Hash --
+   ----------
+
+   function Hash (Key : Key_Type) return Hash_Type is
+
       function Shift_Left
-        (Value : Hash_Type; Amount : Natural) return Hash_Type;
+        (Value  : Hash_Type;
+         Amount : Natural) return Hash_Type;
       pragma Import (Intrinsic, Shift_Left);
 
-      H : Hash_Type := 0;
+      H : Hash_Type;
+
    begin
+      H := 0;
       for J in Key'Range loop
          H := Char_Type'Pos (Key (J))
-           + Shift_Left (H, 6) + Shift_Left (H, 16) - H;
+                + Shift_Left (H, 6) + Shift_Left (H, 16) - H;
       end loop;
+
       return H;
    end Hash;
 

gcc/ada/s-strhas.ads

@@ -42,16 +42,16 @@ package System.String_Hash is
 
    generic
       type Char_Type is (<>);
-      --  The character type composing the key string type.
+      --  The character type composing the key string type
 
       type Key_Type is array (Positive range <>) of Char_Type;
-      --  The string type to use as a hash key.
+      --  The string type to use as a hash key
 
       type Hash_Type is mod <>;
-      --  The type to be returned as a hash value.
+      --  The type to be returned as a hash value
 
    function Hash (Key : Key_Type) return Hash_Type;
    pragma Inline (Hash);
-   --  Compute a hash value for a key.
+   --  Compute a hash value for a key
 
 end System.String_Hash;

gcc/ada/sem_ch10.adb

@@ -4140,19 +4140,29 @@ package body Sem_Ch10 is
             end;
 
             --  Finally, check whether there are subprograms that still
-            --  require a body.
+            --  require a body, i.e. are not renamings or null.
 
             if not Is_Empty_Elmt_List (Subp_List) then
                declare
                   Subp_Id : Elmt_Id;
+                  Spec    : Node_Id;
 
                begin
                   Subp_Id := First_Elmt (Subp_List);
+                  Spec    := Parent (Node (Subp_Id));
 
                   while Present (Subp_Id) loop
-                     if Nkind (Parent (Parent (Node (Subp_Id))))
-                        /= N_Subprogram_Renaming_Declaration
+                     if Nkind (Parent (Spec))
+                        = N_Subprogram_Renaming_Declaration
                      then
+                        null;
+
+                     elsif Nkind (Spec) = N_Procedure_Specification
+                       and then Null_Present (Spec)
+                     then
+                        null;
+
+                     else
                         Set_Body_Required (Library_Unit (N));
                         return;
                      end if;