processor compatibility when building packages

Billinghurst, David (CRTS)
Sat Oct 13 18:01:00 GMT 2001

>From the fine manual

Assume the defaults for the machine type cpu-type when scheduling
instructions. The choices for cpu-type are `i386', `i486', `i586', `i686',
`pentium', `pentiumpro', `k6', and `athlon' 

While picking a specific cpu-type will schedule things appropriately for
that particular chip, the compiler will not generate any code that does not
run on the i386 without the `-march=cpu-type' option being used. `i586' is
equivalent to `pentium' and `i686' is equivalent to `pentiumpro'. `k6' is
the AMD chip as opposed to the Intel ones. 

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