+plane01-unassigned.hex: unassigned-ranges.txt
+ set -e && \
+ grep "^[0-9A-Fa-f]" unassigned-ranges.txt | \
+ awk 'NF == 1 {print "../../bin/unihexgen " $$1 " " $$1;} \
+ NF == 2 {print "../../bin/unihexgen " $$1 " " $$2;}' | \
+ /bin/sh -s > plane01-unassigned.hex
+