These programs use various data files to specify font encodings, auxliary information for a font, and other things. Some of these data files are distributed in the directory `data'; others must be constructed on a font-by-font basis.
If the environment variable FONTUTIL_LIB is set, data files are
looked up along the path it specifies, using the same algorithm as is
used for font searching (see section Font searching). Otherwise, the
default path is set in the top-level Makefile.
The following sections (in other chapters of the manual) also describe file formats:
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