Mailing-List:	contact cygwin-apps-help AT sourceware DOT cygnus DOT com; run by ezmlm
Sender:	cygwin-apps-owner AT sourceware DOT cygnus DOT com
List-Subscribe:	<mailto:cygwin-apps-subscribe AT sources DOT redhat DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin-apps/>
List-Post:	<mailto:cygwin-apps AT sources DOT redhat DOT com>
List-Help:	<mailto:cygwin-apps-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/lists.html#faqs>
Delivered-To:	mailing list cygwin-apps AT sources DOT redhat DOT com
Message-ID:	<8D00C32549556B4E977F81DBC24E985D40FFD3@crtsmail1.technol_exch.corp.riotinto.org>
From:	"Billinghurst, David (CRTS)" <David DOT Billinghurst AT riotinto DOT com>
To:	"'cygwin-apps AT cygwin DOT com'" <cygwin-apps AT cygwin DOT com>
Subject:	RE: processor compatibility when building packages
Date:	Sun, 14 Oct 2001 01:01:39 -0000
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2653.19)

From the fine manual
http://gcc.gnu.org/onlinedocs/gcc-3.0.1/gcc_3.html#SEC35

-mcpu=cpu-type
 
Assume the defaults for the machine type cpu-type when scheduling
instructions. The choices for cpu-type are `i386', `i486', `i586', `i686',
`pentium', `pentiumpro', `k6', and `athlon' 

While picking a specific cpu-type will schedule things appropriately for
that particular chip, the compiler will not generate any code that does not
run on the i386 without the `-march=cpu-type' option being used. `i586' is
equivalent to `pentium' and `i686' is equivalent to `pentiumpro'. `k6' is
the AMD chip as opposed to the Intel ones. 

- Raw text -