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Re: sorry, unimplemented: 64-bit mode not compiled in - ?!
- From: Daniel Jacobowitz <drow at false dot org>
- To: Denis Vlasenko <vda dot linux at googlemail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Thu, 27 Jul 2006 09:44:42 -0400
- Subject: Re: sorry, unimplemented: 64-bit mode not compiled in - ?!
- References: <200607271256.14606.vda.linux@googlemail.com>
On Thu, Jul 27, 2006 at 12:56:14PM +0200, Denis Vlasenko wrote:
> does it mean I need a cross-compiler (to x86_64) to use -m64?
> It's strange because then -m64 is not useful at all
> - x86_64 cross compiler defaults to 64 bit anyway... right?
It overrides -m32 earlier on the command line. It's also possible to
build 32-bit configurations which support 64-bit compilation - but
the default i686-linux configuration does not. The i686-solaris2.10
port does, and Debian's i486-linux compilers do also (local patch).
--
Daniel Jacobowitz
CodeSourcery