make.conf file & CPUTYPE?

[Subhro]

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-
> questions at freebsd.org] On Behalf Of Gerard Seibert
> Sent: Sunday, December 26, 2004 6:47
> To: freebsd-questions
> Subject: make.conf file & CPUTYPE?
> 
> When I ran 'buildkernel' as well as 'buildworld', I used
> the 'CPUTYPE?=i686' directive in the 'make.conf' file. I was wondering if
> it is correct to leave it in the 'make.conf' file now that I am finished
> building a new kernel and updating the system. Would I be better off if I
> just removed it, or changed it to 'CPUTYPE=i686'. I assumed that the '?'
> was just for the 'buildworld' procedure.
> 
<snip>

The "?" is required onlyif you build a kernel for one architecture on a
different architecture. For example, you try to build a kernel for a P1 on a
P4 box. You would be better of with CPUTYPE=i686 or more precisely something
like CPUTYPE=p3 (in case you are building the world/kernel) for a Pentium
III system. And I wuld recommend to leave the same in make.conf even after
completion of the building because, all subsequent builds would be optimized
for the processor mentioned in CPUTYPE

Regards,
S.

Indian Institute of Information Technology
Subhro Sankha Kar
Block AQ-13/1, Sector V
Salt Lake City
PIN 700091
India
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