--- ck-0.5.2/doc/Makefile.in.orig	2017-01-20 17:23:59.365885969 +0100
+++ ck-0.5.2/doc/Makefile.in	2017-01-20 17:28:59.305434266 +0100
@@ -2,7 +2,7 @@
 
 MANDIR=@MANDIR@
 GZIP=@GZIP@
-GZIP_SUFFIX=.3@GZIP_SUFFIX@
+MAN_SUFFIX=.3
 BUILD_DIR=@BUILD_DIR@
 SRC_DIR=@SRC_DIR@
 HTML_SUFFIX=.html
@@ -180,7 +180,7 @@
 
 all: 
 	for target in $(OBJECTS); do 			   \
-		$(GZIP) $(SRC_DIR)/doc/$$target > $(BUILD_DIR)/doc/$$target$(GZIP_SUFFIX); \
+		cp $(SRC_DIR)/doc/$$target $(BUILD_DIR)/doc/$$target$(MAN_SUFFIX); \
 	done
 
 html:
@@ -188,14 +188,14 @@
 		echo $$target;				   		\
 		groff -man -Tascii $(SRC_DIR)/doc/$$target | col -bx >	\
 		   $(BUILD_DIR)/doc/$$target$(HTML_SUFFIX); 		\
-		sed -i.bk 's/\&/\&amp\;/g;s/>/\&gt\;/g;s/</\&lt\;/g;'	\
+		gsed -i.bk 's/\&/\&amp\;/g;s/>/\&gt\;/g;s/</\&lt\;/g;'	\
 		   $(BUILD_DIR)/doc/$$target$(HTML_SUFFIX); 		\
 	done
 
 # check for entries that are missing in OBJECTS
 objcheck: all
-	for file in `ls * | egrep '(ck|CK)_' | egrep -v "($(GZIP_SUFFIX)|$(HTML_SUFFIX))$$"`; do \
-		if [ ! -f $${file}$(GZIP_SUFFIX) ]; then	\
+	for file in `ls * | egrep '(ck|CK)_' | egrep -v "($(MAN_SUFFIX)|$(HTML_SUFFIX))$$"`; do \
+		if [ ! -f $${file}$(MAN_SUFFIX) ]; then	\
 			echo "$$file is missing from OBJECTS" >&2;	\
 		fi;						\
 	done
@@ -206,13 +206,13 @@
 
 install:
 	mkdir -p $(DESTDIR)/$(MANDIR)/man3 || exit
-	cp *$(GZIP_SUFFIX) $(DESTDIR)/$(MANDIR)/man3 || exit
+	cp *$(MAN_SUFFIX) $(DESTDIR)/$(MANDIR)/man3 || exit
 
 uninstall:
 	for target in $(OBJECTS); do 			  \
-		rm -f $(DESTDIR)/$(MANDIR)/man3/$$target$(GZIP_SUFFIX); \
+		rm -f $(DESTDIR)/$(MANDIR)/man3/$$target$(MAN_SUFFIX); \
 	done
 
 clean:
-	rm -f $(BUILD_DIR)/doc/*~ $(BUILD_DIR)/doc/*$(GZIP_SUFFIX) $(BUILD_DIR)/doc/*$(HTML_SUFFIX)
+	rm -f $(BUILD_DIR)/doc/*~ $(BUILD_DIR)/doc/*$(MAN_SUFFIX) $(BUILD_DIR)/doc/*$(HTML_SUFFIX)