jhb 34de26d108 Add a feature_present(3) function which checks to see if a named kernel
feature is present by checking the kern.features sysctl MIB.

MFC after:	1 week
2008-01-10 22:11:21 +00:00
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2007-06-03 17:20:27 +00:00
2007-12-12 07:43:23 +00:00
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2007-12-03 15:13:44 +00:00