Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
Looks like your version of ImageMagick does not include support for the Freetype delegate library. However, it should gracefully fall back to using Postscript. We'll take a look and add a patch to ImageMagick 6.3.2-2 Beta within the next few days.
Also you MUST specify -label BEFORE reading the image.
OR use -set label '%f' AFTER reading in the images.
-label is a setting that only applyes to images being read-in or created AFTER it is set.
the -set is an operator that applys to images that are already in memory.