Index: ipt-netflow-2.2/Makefile.in
===================================================================
--- ipt-netflow-2.2.orig/Makefile.in
+++ ipt-netflow-2.2/Makefile.in
@@ -64,10 +64,10 @@ sinstall: | snmp_NETFLOW.so IPT-NETFLOW-
 	fi
 
 %_sh.o: libipt_NETFLOW.c
-	gcc -O2 -Wall -Wunused $(IPTABLES_CFLAGS) -fPIC -o $@ -c libipt_NETFLOW.c
+	$(CC) $(CFLAGS) -O2 -Wall -Wunused $(IPTABLES_CFLAGS) -fPIC -o $@ -c libipt_NETFLOW.c
 
 %.so: %_sh.o
-	gcc -shared -o $@ $<
+	$(CC) -shared -o $@ $<
 
 version.h: ipt_NETFLOW.c ipt_NETFLOW.h compat.h Makefile
 	@./version.sh --define > version.h