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Old 08-10-2003, 10:16 AM   #1
exodusnumeri
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Registered: Aug 2003
Posts: 2

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Gentoo


HI,


I am installing Gentoo 1.4, but i got a AMD Duron system , so my question is which safe flags do i have to use , i was reading on some pages about ''-march=athlon -O3 -pipe -fomit-frame-pointer", but on a other forum they said use -mcpu= instead of -march=, so i dunno atm


greetings,

exodusnumeri
 
Old 08-11-2003, 12:55 AM   #2
miknight
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Registered: Oct 2002
Location: Sydney, Australia
Distribution: Gentoo, Ubuntu, Debian
Posts: 184

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Surely a quick Google could have resolved this for you.

--march: CPU specific optimizations, not backwards compatible with older CPUs

--mcpu: Optimizations that are backwards compatible. i.e. A program compiled with --mcpu athlon should still work on an Pentium 2. Safer but not as optimized.

Don't use both, as I believe march will override it (could be wrong on this). Generally march is fine, unless you plan to downgrade or copy compiled programs onto older computers.
 
  


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