diff -ruNp ppp-2.4.4.orig/pppdump/Makefile.linux ppp-2.4.4/pppdump/Makefile.linux
--- ppp-2.4.4.orig/pppdump/Makefile.linux	2006-06-04 07:04:14.000000000 +0200
+++ ppp-2.4.4/pppdump/Makefile.linux	2006-10-22 23:44:23.000000000 +0200
@@ -2,15 +2,40 @@ DESTDIR = $(INSTROOT)@DESTDIR@
 BINDIR = $(DESTDIR)/sbin
 MANDIR = $(DESTDIR)/share/man/man8
 
-CFLAGS += -O -I../include/net
-OBJS = pppdump.o bsd-comp.o deflate.o zlib.o
+DO_DEFLATE=y
+DO_BSD_COMPRESS=y
+HAVE_ZLIB=y
+
+OPTS := -O2 -Wall
+CFLAGS += -I../include/net
+OBJS := pppdump.o
+LIBS :=
+
+ifdef DO_DEFLATE
+CFLAGS += -DDO_DEFLATE=1
+OBJS += deflate.o
+ifdef HAVE_ZLIB
+LIBS += -lz
+else
+OBJS += zlib.o
+endif
+else
+CFLAGS += -DDO_DEFLATE=0
+endif
+
+ifdef DO_BSD_COMPRESS
+CFLAGS += -DDO_BSD_COMPRESS=1
+OBJS += bsd-comp.o
+else
+CFLAGS += -DDO_BSD_COMPRESS=0
+endif
 
 INSTALL= install
 
 all:	pppdump
 
 pppdump: $(OBJS)
-	$(CC) -o pppdump $(OBJS)
+	$(CC) $(CFLAGS) $(OPTS) -o pppdump $(OBJS) $(LIBS)
 
 clean:
 	rm -f pppdump $(OBJS) *~
