I read in the gcc release notes:
"Tuning for Intel Core 2 processors is available via -mtune=core2 and
-march=core2"
Is there any difference in setting -mtune and -march?
The BUILD64="-m64" is something that is advised on the clfs page for building
for 64 bit.
When building tools they start every time with: CC="${CC} ${BUILD64}"
Hence I am considering to say BUILD64="-m64 -march=core2"
Maybe this is already not necessary, in which case BUILD64="-m64 -march=core2
-mtune=core2"
Would be totally useless and redundant?
Kind Regards,
Reinoud.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Nicholai
Vesterløkke
Sent: Thursday, March 19, 2009 1:43 AM
To: CLFS Support
Subject: Re: [Clfs-support] 64 bit cross compile
> "Koornstra, Reinoud" <[email protected]>
>
> Would it be allright to set the BUILD64 variable to this:
>
> export BUILD64="-m64 -mtune=core2"
>
> instead of just BUILD64="-m64"?
I would just try -mach=core2
-mach implies -mtune, but I',m not sure about m64. I just can't see why
not.
Regards
Nicholai
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