install.texi (Specific#x-x-cygwin): Document minimum required binutils version...

	* doc/install.texi (Specific#x-x-cygwin): Document minimum required
	binutils version, and reword target configuration description.

From-SVN: r155821

gcc/ChangeLog

+2010-01-11  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	* doc/install.texi (Specific#x-x-cygwin): Document minimum required
+	binutils version, and reword target configuration description.
+
 2010-01-11  Andy Hutchinson  <hutchinsonandy@gcc.gnu.org>
 
 	* config/avr/avr.h (LINKER_NAME): Remove. 

gcc/doc/install.texi

@@ -45,7 +45,8 @@
 @end ifset
 
 @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-@c 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+@c 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 
+@c 2010 Free Software Foundation, Inc.
 @c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com
 
 @c IMPORTANT: whenever you modify this file, run `install.texi2html' to
@@ -4447,7 +4448,11 @@ Ports of GCC are included with the
 GCC will build under Cygwin without modification; it does not build
 with Microsoft's C++ compiler and there are no plans to make it do so.
 
-Cygwin can be compiled with i?86-pc-cygwin.
+The Cygwin native compiler can be configured to target any 32-bit x86
+cpu architecture desired; the default is i686-pc-cygwin.  It should be
+used with as up-to-date a version of binutils as possible; use either
+the latest official GNU binutils release in the Cygwin distribution,
+or version 2.20 or above if building your own.
 
 @html
 <hr />