--- tools/Makefile.orig	2012-01-04 20:34:28.000000000 +1100
+++ tools/Makefile	2022-05-27 07:26:41.000000000 +1000
@@ -7,9 +7,8 @@
 # Distributed under the terms and conditions of GNU LGPL.
 #
 
-CC      = gcc
-CFLAGS  = -g -ggdb -Wall -Wno-format -funsigned-char
-LDFLAGS =
+CC      ?= gcc
+CFLAGS  += -Wall -Wno-format -funsigned-char
 TARGETS = p0f-client p0f-sendsyn p0f-sendsyn6
 
 all: $(TARGETS)