gnatvsn.adb (Gnat_Version_String): Don't overrun Ver_Len_Max.

* gnatvsn.adb (Gnat_Version_String): Don't overrun Ver_Len_Max.
* gnatvsn.ads (Ver_Len_Max): Bump up to 256.
* g-comver.adb (Ver_Len_Max): Likewise.

From-SVN: r167408

gcc/ada/ChangeLog

+2010-12-03  Alexandre Oliva  <aoliva@redhat.com>
+
+	* gnatvsn.adb (Gnat_Version_String): Don't overrun Ver_Len_Max.
+	* gnatvsn.ads (Ver_Len_Max): Bump up to 256.
+	* g-comver.adb (Ver_Len_Max): Likewise.
+
 2010-12-03  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
 
 	* gcc-interface/decl.c (struct subst_pair_d): Remove GTY tag.

gcc/ada/g-comver.adb

@@ -37,7 +37,7 @@
 
 package body GNAT.Compiler_Version is
 
-   Ver_Len_Max : constant := 64;
+   Ver_Len_Max : constant := 256;
    --  This is logically a reference to Gnatvsn.Ver_Len_Max but we cannot
    --  import this directly since run-time units cannot WITH compiler units.
 

gcc/ada/gnatvsn.adb

@@ -74,6 +74,8 @@ package body Gnatvsn is
 
          S (Pos + 1) := Version_String (Pos);
          Pos := Pos + 1;
+
+         exit when Pos = Ver_Len_Max;
       end loop;
 
       return S (1 .. Pos);

gcc/ada/gnatvsn.ads

@@ -70,7 +70,7 @@ package Gnatvsn is
    --  Return the name of the Copyright holder to be displayed by the different
    --  GNAT tools when switch --version is used.
 
-   Ver_Len_Max : constant := 64;
+   Ver_Len_Max : constant := 256;
    --  Longest possible length for Gnat_Version_String in this or any
    --  other version of GNAT. This is used by the binder to establish
    --  space to store any possible version string value for checks. This