poudriere and CPUTYPE

[Mathieu Arnold]

Le 29/01/2017 à 18:17, Grzegorz Junka a écrit :
> When building packages for a different machine it's possible to
> specify CPU target, e.g.:
>
> CPUTYPE?=core2
>
> However, when building packages that depend on other packages
> poudriere will install the already build dependencies in order to
> build the new packages. That will fail if the CPU on the build machine
> doesn't execute instructions specified in the CPUTYPE for the target
> machine. For example, on amdfam10 build machine pkg build for core2
> fails to install and as a result none of the packages can be build
> since pkg is required to install any dependency.
>
> How this CPUTYPE should be used then when building for different
> machines? Bhyve?

You should use the oldest CPUTYPE that any machine that will use those
packages has. If the host does not support core2, don't use it, use some
older one. Also, if it does not support it, bhyve won't work there as it
is too old.

(As a rule of the thumb, don't use CPUTYPE, at best you will win a few
cycles here and there, but it will more generally be more painful when
you discover you need to use the packages some place where that CPUTYPE
is to recent.)


-- 
Mathieu Arnold


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