X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/69491f1e3e15613d99d63649d97260cefa46c741..826e0298fa89ec38199e45ff9202314882dcab23:/Makefile.doc

diff --git a/Makefile.doc b/Makefile.doc
index 677bc8e..ff67357 100644
--- a/Makefile.doc
+++ b/Makefile.doc
@@ -5,3 +5,10 @@ puzzles.hlp puzzles.txt: puzzles.but
 
 HACKING: devel.but
 	halibut --text=HACKING devel.but
+
+chm: puzzles.hhp
+puzzles.hhp: puzzles.but chm.but
+	halibut --html puzzles.but chm.but
+
+clean:
+	rm -f puzzles.hlp puzzles.txt HACKING *.html *.hh[pck]