--- libpcap/Makefile.in.orig	2025-04-14 12:06:54.000000000 -0700
+++ libpcap/Makefile.in	2026-02-02 15:36:39.094534000 -0800
@@ -69,7 +69,8 @@
 INSTALL_RPCAPD=@INSTALL_RPCAPD@
 
 # Standard CFLAGS for building members of a shared library
-FULL_CFLAGS = $(CCOPT) @V_LIB_CCOPT_FAT@ $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
+FULL_CFLAGS = -I. $(CCOPT) @V_LIB_CCOPT_FAT@ $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
+CXXFLAGS = -I. $(CCOPT) @V_LIB_CCOPT_FAT@ $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
 
 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@