Author: holgersson <holgersson@posteo.de>
Date:   Fri Oct 20 18:30:00 2017 +0200

Don’t call gcc directly, and respect CFLAGS. As this project
is plain C I don’t care fore CXXFLAGS here.

--- a/Makefile	2017-10-20 18:15:11.743805540 +0200
+++ b/Makefile	2017-10-20 18:24:55.120009439 +0200
@@ -1,6 +1,6 @@
-CC = gcc
-CFLAGS = -Wall
-LDFLAGS = -lpcap
+CC ?= gcc
+CFLAGS += -Wall
+LDFLAGS = -lpcap
 
 all:
 	$(CC) $(CFLAGS) $(LDFLAGS) -o hexinject hexinject.c