Makefile.doc

   1 all: puzzles.hlp puzzles.txt HACKING
   2
   3 puzzles.hlp puzzles.txt: puzzles.but
   4         halibut --winhelp=puzzles.hlp --text=puzzles.txt puzzles.but
   5
   6 HACKING: HACKING.but
   7         halibut --text=HACKING HACKING.but