[issue7716] IPv6 detection, don't assume existence of /usr/xpg4/bin/grep

[Sandro Tosi]

Sandro Tosi <sandro.tosi at gmail.com> added the comment:

Hi, I think the best way to test this patch is to apply the fix and then compile python on a Solaris system (which I don't have): is someone owning a Solaris would run this test?

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nosy: +sandro.tosi

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<http://bugs.python.org/issue7716>
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