v1.3.7 crashes on require because of file name difference in 32bit and 64bit windows gtk+ bundles

After compiling v1.3.7 on 32bit windows using the suggested package (http://ftp.gnome.org/pub/GNOME/binaries/win32/gtk+/2.24/gtk+-bundle_2.24.10-20120208_win32.zip),
require()-ing the build product results in a `Cannot set property 'parseFont' of undefined` error.

During compilation a warning is displayed, complaining about a missing libfreetype-6.dll. It turns out that the filename of the freetype library in the 32bit gtk+ bundles the library is freetype6.dll, whereas in the 64bit bundles it is called libfreetype-6.dll.