Assume changes in data/font will refresh the directory mtime, so will
trigger without requiring individual includes which are optional and may not
be able to build (due to broken symlinks or parse errors) which cannot be
resolved. Manual reinitialisation can also be forced by make data/font/all.
# $< unifont.ttf $@
# $< --headless unifont_upper.ttf >>$@
-data/unicode-cover.inc.pl: tools/mkfontinfo data/font $(patsubst data/font/%.ttf,data/font/%.inc.pl,$(wildcard data/font/*.ttf))
+data/unicode-cover.inc.pl: tools/mkfontinfo data/font # $(wildcard data/font/*.inc.pl)
$(call cmdsave,$<)
data/countryInfo.txt: $(download)