diff -Naur ytree-2.06-old/Makefile ytree-2.06-new/Makefile
--- ytree-2.06-old/Makefile	2023-11-26 06:15:34.000000000 -0300
+++ ytree-2.06-new/Makefile	2023-12-01 12:25:36.641958285 -0300
@@ -11,13 +11,13 @@
 # ADD_CFLAGS: Add -DVI_KEYS if you want vi-cursor-keys
 #
 
-DESTDIR     = /usr
+PREFIX      = /usr
 
 ADD_CFLAGS  = -O # -DVI_KEYS
 
-BINDIR      = $(DESTDIR)/bin
-MANDIR      = $(DESTDIR)/share/man/man1
-MANESDIR    = $(DESTDIR)/share/man/es/man1
+BINDIR      = $(DESTDIR)$(PREFIX)/bin
+MANDIR      = $(DESTDIR)$(PREFIX)/share/man/man1
+MANESDIR    = $(DESTDIR)$(PREFIX)/share/man/es/man1
 
 
 # Uncomment the lines for your system (default is linux)
@@ -224,14 +224,14 @@
 
 install:	$(MAIN)
 		install $(MAIN) $(BINDIR)
-		gzip -9c ytree.1 > ytree.1.gz
+		gzip -n -9c ytree.1 > ytree.1.gz
 		if [ -d $(MANDIR) ]; then install -m 0644 ytree.1.gz  $(MANDIR)/; fi
-		gzip -9c ytree.1.es > ytree.1.es.gz
+		gzip -n -9c ytree.1.es > ytree.1.es.gz
 		if [ -d $(MANESDIR) ]; then install -m 0644 ytree.1.es.gz $(MANESDIR)/; fi
 
 clean:
 		rm -f core *.o *~ *.orig *.bak 
-		
+
 clobber:	clean
 		rm -f $(MAIN) ytree.1.es.gz ytree.1.gz