Don't mix up portability between CPU architectures and between OSes. This article is about the latter. Portability between CPU architecture is relatively easy and unproblematic in userspace, and much less of a headache (unless you hack assembly). I have no issue with CPU portability.
Posted Mar 2, 2011 21:19 UTC (Wed) by rfunk (subscriber, #4054)
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In the Free Software world, I actually think the two types of portability are similar, have similar benefits, and both important; they're both platforms on which our code runs, and ideally can be swapped out underneath. But only one sentence of what I wrote was about CPU portability.