ref: c6fa81bfc061a647bbcfe2740acade4a7bc325ae
dir: /Makefile.doc/
all: puzzles.hlp puzzles.txt HACKING puzzles.hlp puzzles.txt: puzzles.but halibut --winhelp=puzzles.hlp --text=puzzles.txt puzzles.but HACKING: devel.but halibut --text=HACKING devel.but