Description: Fix makefile ignoring env vars
 Append the local values to the already provided CFLAGS/LDFLAGS
 from the environment. Add CPPFLAGS to CFLAGS - fixes hardening.
 .
Author: Boian Bonev <bbonev@ipacct.com>
Origin: other
Forwarded: by-email
Last-Update: 2023-02-23

--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
-CFLAGS=	 -Wall -g
-LDFLAGS= -g
-LIBS=	-lpcap
+CFLAGS += $(CPPFLAGS) -Wall -g
+LDFLAGS += -g
+LIBS += -lpcap
 
 all: dhcpdump dhcpdump.8