[multiple changes]

2011-08-04  Ed Schonberg  <schonberg@adacore.com>

	* sem_attr.adb (Bad_Attribute_For_Predicate): flag illegal use of
	attribute only if prefix type is scalar.

2011-08-04  Emmanuel Briot  <briot@adacore.com>

	* make.adb, makeutl.adb, prj-env.adb (Check_Mains): put back support
	in gnatmake for specifying mains on the command line that do not belong
	to the main project. These mains must currently all belong to the same
	project, though.
	(Ultimate_Extension_Of): removed, since duplicated
	Ultimate_Extending_Project.

From-SVN: r177367

gcc/ada/ChangeLog

+2011-08-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_attr.adb (Bad_Attribute_For_Predicate): flag illegal use of
+	attribute only if prefix type is scalar.
+
+2011-08-04  Emmanuel Briot  <briot@adacore.com>
+
+	* make.adb, makeutl.adb, prj-env.adb (Check_Mains): put back support
+	in gnatmake for specifying mains on the command line that do not belong
+	to the main project. These mains must currently all belong to the same
+	project, though.
+	(Ultimate_Extension_Of): removed, since duplicated
+	Ultimate_Extending_Project.
+
 2011-08-04  Arnaud Charlet  <charlet@adacore.com>
 
 	* make.adb (Do_Codepeer_Globalize_Step): Removed. Use CodePeer_Mode

gcc/ada/make.adb

@@ -5673,6 +5673,9 @@ package body Make is
       -----------------
 
       procedure Check_Mains is
+         Real_Main_Project : Project_Id := No_Project;
+         Info : Main_Info;
+         Proj : Project_Id;
       begin
          if Mains.Number_Of_Mains (Project_Tree) = 0
            and then not Unique_Compile
@@ -5682,6 +5685,38 @@ package body Make is
 
          Mains.Complete_Mains
            (Root_Environment.Flags, Main_Project, Project_Tree);
+
+         --  If we have multiple mains on the command line, they need not
+         --  belong to the root project, but they must all belong to the same
+         --  project.
+         if not Unique_Compile then
+            Mains.Reset;
+            loop
+               Info := Mains.Next_Main;
+               exit when Info = No_Main_Info;
+
+               Debug_Output ("MANU Got main: ", Name_Id (Info.File));
+               Debug_Output ("MANU    in project: ", Info.Project.Name);
+
+               Proj := Ultimate_Extending_Project_Of (Info.Project);
+
+               if Real_Main_Project = No_Project then
+                  Real_Main_Project := Proj;
+               elsif Real_Main_Project /= Proj then
+                  Make_Failed
+                    ("""" & Get_Name_String (Info.File) &
+                     """ is not a source of project " &
+                     Get_Name_String (Real_Main_Project.Name));
+               end if;
+            end loop;
+
+            if Real_Main_Project /= No_Project then
+               Main_Project := Real_Main_Project;
+            end if;
+
+            Debug_Output ("After checking mains, main project is",
+                          Main_Project.Name);
+         end if;
       end Check_Mains;
 
    --  Start of processing for Gnatmake

gcc/ada/makeutl.adb

@@ -1442,9 +1442,10 @@ package body Makeutl is
 
                   begin
                      if Base /= Main then
+                        Is_Absolute := True;
+
                         if Is_Absolute_Path (Main) then
                            Main_Id := Create_Name (Base);
-                           Is_Absolute := True;
                         else
                            declare
                               Absolute : constant String :=
@@ -1545,7 +1546,7 @@ package body Makeutl is
                            Debug_Output
                              ("found main in project", Source.Project.Name);
                            Names.Table (J).File    := Source.File;
-                           Names.Table (J).Project := File.Project;
+                           Names.Table (J).Project := Source.Project;
 
                            if Names.Table (J).Tree = null then
                               Names.Table (J).Tree := File.Tree;

gcc/ada/prj-env.adb

@@ -105,11 +105,6 @@ package body Prj.Env is
    procedure Set_Path_File_Var (Name : String; Value : String);
    --  Call Setenv, after calling To_Host_File_Spec
 
-   function Ultimate_Extension_Of
-     (Project : Project_Id) return Project_Id;
-   --  Return a project that is either Project or an extended ancestor of
-   --  Project that itself is not extended.
-
    ----------------------
    -- Ada_Include_Path --
    ----------------------
@@ -1345,8 +1340,8 @@ package body Prj.Env is
                               (Unit.File_Names (Spec).Path.Name) =
                             Original_Name))
             then
-               Project := Ultimate_Extension_Of
-                          (Project => Unit.File_Names (Spec).Project);
+               Project := Ultimate_Extending_Project_Of
+                          (Unit.File_Names (Spec).Project);
                Path := Unit.File_Names (Spec).Path.Display_Name;
 
                if Current_Verbosity > Default then
@@ -1367,8 +1362,8 @@ package body Prj.Env is
                             (Unit.File_Names (Impl).Path.Name) =
                             Original_Name))
             then
-               Project := Ultimate_Extension_Of
-                            (Project => Unit.File_Names (Impl).Project);
+               Project := Ultimate_Extending_Project_Of
+                            (Unit.File_Names (Impl).Project);
                Path := Unit.File_Names (Impl).Path.Display_Name;
 
                if Current_Verbosity > Default then
@@ -1556,15 +1551,7 @@ package body Prj.Env is
          Unit := Units_Htable.Get_Next (In_Tree.Units_HT);
       end loop;
 
-      --  Get the ultimate extending project
-
-      if Result /= No_Project then
-         while Result.Extended_By /= No_Project loop
-            Result := Result.Extended_By;
-         end loop;
-      end if;
-
-      return Result;
+      return Ultimate_Extending_Project_Of (Result);
    end Project_Of;
 
    -------------------
@@ -1805,24 +1792,6 @@ package body Prj.Env is
       end if;
    end Set_Path_File_Var;
 
-   ---------------------------
-   -- Ultimate_Extension_Of --
-   ---------------------------
-
-   function Ultimate_Extension_Of
-     (Project : Project_Id) return Project_Id
-   is
-      Result : Project_Id;
-
-   begin
-      Result := Project;
-      while Result.Extended_By /= No_Project loop
-         Result := Result.Extended_By;
-      end loop;
-
-      return Result;
-   end Ultimate_Extension_Of;
-
    ---------------------
    -- Add_Directories --
    ---------------------

gcc/ada/sem_attr.adb

@@ -217,6 +217,8 @@ package body Sem_Attr is
       --  actual, then the message is a warning, and we generate code to raise
       --  program error with an appropriate reason. No error message is given
       --  for internally generated uses of the attributes.
+      --  The legality rule only applies to scalar types, even though the
+      --  current AI mentions all subtypes.
 
       procedure Check_Array_Or_Scalar_Type;
       --  Common procedure used by First, Last, Range attribute to check
@@ -840,7 +842,9 @@ package body Sem_Attr is
 
       procedure Bad_Attribute_For_Predicate is
       begin
-         if Comes_From_Source (N) then
+         if Is_Scalar_Type (P_Type)
+           and then  Comes_From_Source (N)
+         then
             Error_Msg_Name_1 := Aname;
             Bad_Predicated_Subtype_Use
               ("type& has predicates, attribute % not allowed", N, P_Type);