Create and install pdf file for trek documentation

debian/clean

@@ -1 +1,2 @@
 temp-dictionary
+debian/trek.pdf

debian/control

@@ -4,6 +4,7 @@ Priority: optional
 Build-Depends: bison,
                debhelper (>= 11~),
                flex,
+               groff,
                libfl-dev,
                libncurses5-dev,
                wamerican,

debian/docs

@@ -7,3 +7,4 @@ SECURITY
 THANKS
 TODO
 YEAR2000
+debian/trek.pdf

debian/rules

@@ -11,6 +11,8 @@ override_dh_auto_build:
 	cat /usr/share/dict/american-english /usr/share/dict/british-english | \
 		sort | uniq > temp-dictionary
 	dh_auto_build
+	# Generate a pdf file for trek documentation, see #874680
+	cat trek/USD.doc/trek.me | tbl | groff -me -Tpdf > debian/trek.pdf
 
 override_dh_installdocs:
 	dh_installdocs
@@ -34,6 +36,9 @@ override_dh_install:
 	mv debian/bsdgames/usr/games/adventure debian/bsdgames/usr/games/bsdgames-adventure
 	mv debian/bsdgames/usr/share/man/man6/adventure.6 debian/bsdgames/usr/share/man/man6/bsdgames-adventure.6
 
+override_dh_compress:
+	dh_compress --exclude=.pdf
+
 override_dh_fixperms:
 	dh_fixperms
 	chmod -R u+rw debian/bsdgames/usr/