build flags for a 386DX (5.1)

[John Nielsen]

On Friday 13 June 2003 15:02, Kris Kennaway wrote:
> On Fri, Jun 13, 2003 at 12:44:06PM -0700, Doug White wrote:
> > On Thu, 12 Jun 2003, John Nielsen wrote:
> > > [escalated from -questions]
> > >
> > > Hi folks-
> > >
> > > I am setting up FreeBSD 5.1-RELEASE on a 386DX.
> >
> > That works? 386 is not a supported CPU on 5.X.  It is missing atomic
> > operations that is necesary for proper operation of threading.
>
> It is if you compile your own kernel, it's just not supported by
> default.

Yup, it's working fine.  I replaced the kernel on the boot floppy with one I 
had built for the occasion (with 'cpu I386_CPU' and 'options 
GPL_MATH_EMULATE').

As I indicated, my only hangup is that I'm not familiar enough with the new 
GCC 3 build procedures to know where to put the -march and/or -mcpu flags 
for a buildworld on a separate (newer) machine.

JN