CPUTYPE weirdness

Jase Thew bazerka at beardz.net
Thu Aug 14 15:03:09 UTC 2008

Jeremy Chadwick wrote:
> On Thu, Aug 14, 2008 at 04:13:51PM +0200, Johan Hendriks wrote:
>>> Jeremy Chadwick wrote:
>>>> On Thu, Aug 14, 2008 at 02:35:46PM +0200, Pascal Hofstee wrote:
>>>>> I just installed a fresh FreeBSD/amd64 7.0-RELEASE and trying to update
>>>>> to RELENG_7_0.
>>>>> I added CPUTYPE ?= core2 to my /etc/src.conf and every call to make
>>>>> in /usr/src now gives me the error
>>>>> "/usr/src/Makefile.inc1", line 142: CPUTYPE global should be set
>>>>> with ?=.
>>>>> *** Error code 1
>>>>> Anyone has any idea what i am doing wrong here ... this same mechanism
>>>>> has worked flawlessly on several other systems (although they were not
>>>>> RELENG_7_0) ?
>>>> 1) Remove the space after the word "CPUTYPE", e.g.:
>>>> 	CPUTYPE?=core2
>>>> You can put a tab after the "=" if you want, e.g.:
>>>> 	CPUTYPE?=	core2
>>>> 2) According to some very old mail I have (will dig it up if you want),
>>>> Core2Duo users should be using CPUTYPE?=nocona.
>>> This should be fixed long time ago. core2 is alias for nocona but the 
>>> idea is users to
>>> be ready when additional optimization for core2 are added.
>> If you install amd64 then you need nocona if you install i386 you will need presscot.
>> Or use core2 and FreeBSD itself looks at the arch and use nocona or presscot.
>> That?s what I understand from what I read on the net
> 1) It's prescott, not presscot.
> 2) You can use nocona on both i386 and amd64 -- I speak from
> experience.  I'm referring to RELENG_7 by the way; I don't think
> nocona is recognised by the base system gcc on RELENG_6.

nocona is definitely supported by base gcc in RELENG_6_3 and is listed 
in the gcc manpage :

                Improved version of Intel Pentium4 CPU with 64-bit 
                    extensions, MMX, SSE, SSE2 and SSE3 instruction set 

I have it in my /etc/make.conf for 6.3-REL/amd64 and it works a charm.



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