diff -ru smf-spf-2.5.1/Makefile smf-spf-2.5.1.new/Makefile
--- smf-spf-2.5.1/Makefile	2020-11-12 22:44:54.000000000 +0100
+++ smf-spf-2.5.1.new/Makefile	2020-11-19 17:33:15.932774861 +0100
@@ -7,10 +7,10 @@
 CONFDIR = /etc/mail/smfs
 USER = smfs
 GROUP = smfs
-CFLAGS = -O2 -D_REENTRANT -fomit-frame-pointer -I/usr/local/include 
+CFLAGS = -pthread $(OPTFLAGS)
 
 # Linux
-LDFLAGS = -lmilter -lpthread -L/usr/lib/libmilter -L/usr/local/lib -lspf2
+LDFLAGS = -lmilter -lpthread -lspf2
 
 # FreeBSD
 #LDFLAGS = -lmilter -pthread -L/usr/local/lib -lspf2
@@ -25,7 +25,6 @@
 
 smf-spf: smf-spf.o
 	$(CC) -o smf-spf smf-spf.o $(LDFLAGS)
-	strip smf-spf
 
 smf-spf.o: smf-spf.c
 	$(CC) $(CFLAGS) -c smf-spf.c