* s-atacco.ads, a-direio.adb: Protect use of 'Constrained by warnings

	on/off, since this is an obsolescent feature, for which we now generate
	a warning.

	* sem_attr.adb (Analyze_Attribute, case Constrained): Issue warning if
	warning mode is set and obsolescent usage of this attribute occurs.
	(Resolve_Access, case 'Access): Note that GNAT uses the context type to
	disambiguate overloaded prefixes, in accordance with AI-235. GNAT code
	predates, and partly motivates, the adoption of the AI.
	Implement new Ada 2005 attribute Mod

	* exp_attr.adb (Expand_N_Attribute_Reference): Implement Ada 2005
	attribute Mod.

	* par-ch4.adb (P_Name): In Ada 2005 mode, recognize new attribute Mod

	* snames.h, snames.ads, snames.adb: Add entry for No_Dependence for
	pragma restrictions.
	New entry for Ada 2005 attribute Mod.

	* par-prag.adb:
	Add recognition of new pragma Restrictions No_Dependence
	Recognize restriction No_Obsolescent_Features at parse time

	* bcheck.adb: Add circuitry for checking for consistency of
	No_Dependence restrictions.

	* lib-writ.ads, lib-writ.adb: Output new R lines for No_Dependence
	restrictions.

	* restrict.ads, restrict.adb: Add subprograms to deal with
	No_Dependence restrictions.

	* rtsfind.adb: Check that implicit with's do not violate No_Dependence
	restrictions.

	* sem_ch3.adb, sem_ch11.adb, sem_ch13.adb, lib-xref.adb,
	sem_attr.adb: Add check for new restriction No_Obsolescent_Features

	* scn.ads, prj-err.ads, prj-err.adb, ali-util.adb, gprep.adb: Add new
	dummy parameter to scng instantiation.
	Needed for new restriction No_Obsolescent_Features

	* scn.adb: (Obsolescent_Check): New procedure
	Needed for new restriction No_Obsolescent_Features

	* scng.ads, scng.adb: Always allow wide characters in Ada 2005 mode, as
	specified by AI-285, needed for implementation of AI-388 (adding greek
	pi to Ada.Numerics).
	Add new generic formal to scng, needed for new restriction
	No_Obsolescent_Features.

	* s-rident.ads: Add new restriction No_Obsolescent_Features.

	* ali.ads, ali.adb: Adjustments for reading new No_Dependence
	restrictions lines.
	(Scan_ALI): When finding an unexpected character on an R line, raise
	exception Bad_R_Line, instead of calling Fatal_Error, so that, when
	Ignore_Errors is True, default restrictions are set and scanning of the
	ALI file continues with the next line. Also, when Bad_R_Line is raised
	and Ignore_Errors is True, skip to the end of le line.

	* sem_ch10.adb: Check that explicit with's do not violate
	No_Dependence restrictions.
	(Install_Withed_Unit): Add code to implement AI-377 and diagnose
	illegal context clauses containing child units of instance.

	* sem_prag.adb: Processing and checking for new No_Dependence
	restrictions.
	(Analyze_Pragma, case Psect_Object): Call Check_Arg_Is_External_Name to
	analyze and check the External argument.

	* a-numeri.ads: Add greek letter pi as alternative spelling of Pi


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@92829 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 15 insertions, 2 deletions

diff --git a/gcc/ada/ali-util.adb b/gcc/ada/ali-util.adb
index 1358ed07c11..1bf114a59e6 100644
--- a/gcc/ada/ali-util.adb
+++ b/gcc/ada/ali-util.adb
@@ -53,7 +53,9 @@ package body ALI.Util is
 
    procedure Error_Msg_SP (Msg : String);
 
-   --  Instantiation of Styleg, needed  to instantiate Scng
+   procedure Obsolescent_Check (S : Source_Ptr);
+
+   --  Instantiation of Styleg, needed to instantiate Scng
 
    package Style is new Styleg
      (Error_Msg, Error_Msg_S, Error_Msg_SC, Error_Msg_SP);
@@ -62,7 +64,8 @@ package body ALI.Util is
    --  Get_File_Checksum).
 
    package Scanner is new Scng
-     (Post_Scan, Error_Msg, Error_Msg_S, Error_Msg_SC, Error_Msg_SP, Style);
+     (Post_Scan, Error_Msg, Error_Msg_S, Error_Msg_SC, Error_Msg_SP,
+      Obsolescent_Check, Style);
 
    type Header_Num is range 0 .. 1_000;
 
@@ -200,6 +203,16 @@ package body ALI.Util is
       Interfaces.Reset;
    end Initialize_ALI_Source;
 
+   -----------------------
+   -- Obsolescent_Check --
+   -----------------------
+
+   procedure Obsolescent_Check (S : Source_Ptr) is
+      pragma Warnings (Off, S);
+   begin
+      null;
+   end Obsolescent_Check;
+
    ---------------
    -- Post_Scan --
    ---------------