* gnatvsn.ads: Update comments.

From-SVN: r165940

gcc/ada/ChangeLog

+2010-10-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* gnatvsn.ads: Update comments.
+
 2010-10-26  Matthew Heaney  <heaney@adacore.com>
 
 	* Makefile.rtl, impunit.adb: Add bounded hashed set and bounded hashed

gcc/ada/gnatvsn.ads

@@ -29,8 +29,8 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  This package spec exports version information for GNAT, GNATBIND and
---  GNATMAKE.
+--  This package spec holds version information for the GNAT tools.
+--  It is updated whenever the release number is changed.
 
 package Gnatvsn is
 
@@ -75,22 +75,22 @@ package Gnatvsn is
    --  other version of GNAT. This is used by the binder to establish
    --  space to store any possible version string value for checks. This
    --  value should never be decreased in the future, but it would be
-   --  OK to increase it if absolutely necessary.
+   --  OK to increase it if absolutely necessary. If it is increased,
+   --  be sure to increase GNAT.Compiler.Version.Ver_Len_Max as well.
 
    Ver_Prefix : constant String := "GNAT Version: ";
    --  Prefix generated by binder. If it is changed, be sure to change
    --  GNAT.Compiler_Version.Ver_Prefix as well.
 
    Library_Version : constant String := "4.6";
-   --  Library version. This value must be updated whenever any change to the
-   --  compiler affects the library formats in such a way as to obsolete
-   --  previously compiled library modules.
+   --  Library version. This value must be updated when the compiler
+   --  version number Gnat_Static_Version_String is updated.
    --
-   --  Note: Makefile.in relies on the precise format of the library version
-   --  string in order to correctly construct the soname value.
+   --  Note: Makefile.in uses the library version string to construct the
+   --  soname value.
 
    Verbose_Library_Version : constant String := "GNAT Lib v" & Library_Version;
-   --  Version string stored in e.g. ALI files.
+   --  Version string stored in e.g. ALI files
 
    Current_Year : constant String := "2010";
    --  Used in printing copyright messages