gravitystorm/openstreetmap-carto — pull request #1032 by math1985 (2014-10-10 00:02:42+00:00)
Title: Render building labels from the same zoomlevel as landuse labels

Render building labels from 3000 pixels.

Old minimum pixel sizes for labels:
1643 pixels on z14 (buildings that big are very rare), 3505 pixels on z15 and z16.

This makes the code more consistent.