re PR ada/22220 (Unable to build gnattools native i586)

        PR 22220
        * doc/install.texi: Update requirements to build GNAT.

From-SVN: r161255

gcc/ChangeLog

+2010-06-23  Arnaud Charlet  <charlet@adacore.com
+
+	PR 22220
+	* doc/install.texi: Update requirements to build GNAT.
+
 2010-06-22  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* config/m68k/m68k.c (m68k_output_addr_const_extra): Add cast to

gcc/doc/install.texi

@@ -2306,7 +2306,7 @@ and network filesystems.
 @section Building the Ada compiler
 
 In order to build GNAT, the Ada compiler, you need a working GNAT
-compiler (GCC version 3.4 or later).
+compiler (GCC version 4.0 or later).
 This includes GNAT tools such as @command{gnatmake} and
 @command{gnatlink}, since the Ada front end is written in Ada and
 uses some GNAT-specific extensions.