On Mar 6, 2013, at 08:52, Joshua Root wrote:
> On 2013-3-7 00:29 , Vincent Habchi wrote:
>> is there a variable that gives the type of the processor Macports is running
>> on? ${os.arch} does not discriminate between i386 and x86_64. Anything more
>> precise?
>
> Well, build_arch tells you what kind of processor the user wants you to
> build for. In general you can't assume that the CPU you're building on
> is the one that you will run on.
Atlas seems to be one of those performance-critical ports that could benefit by
being compiled for the user's specific processor instead of using a
pre-compiled binary that might have been build for a slightly different
processor. To that end, Vincent is going to be clearing archive_sites in the
next update to the atlas port. Users could still manually transport an archive
from one machine to another and thereby possibly get suboptimal performance,
but I think we're assuming users won't do that.
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