Dane Springmeyer 8f79641383 only use skipping if >= boost 1.47 - corrects #1209 (refs #1210)		2012-05-15 10:35:04 -07:00
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mapnik	only use skipping if >= boost 1.47 - corrects #1209 (refs #1210)	2012-05-15 10:35:04 -07:00