--- libpcap/Makefile.in.orig	2019-03-29 20:24:48.000000000 -0700
+++ libpcap/Makefile.in	2020-01-04 21:25:56.152375000 -0800
@@ -69,7 +69,7 @@
 EXTRA_NETWORK_LIBS=@EXTRA_NETWORK_LIBS@
 
 # Standard CFLAGS for building members of a shared library
-FULL_CFLAGS = $(CCOPT) $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
+FULL_CFLAGS = -I. $(CCOPT) $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
 
 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@