diff -ruw src.orig//pppd/plugins/rp-pppoe/config.h src/pppd/plugins/rp-pppoe/config.h
--- src.orig//pppd/plugins/rp-pppoe/config.h	2014-01-14 18:39:38.503746943 +0100
+++ src/pppd/plugins/rp-pppoe/config.h	2014-01-21 17:12:59.762830259 +0100
@@ -60,7 +60,7 @@
 #define HAVE_GETOPT_H 1
 
 /* Define if you have the <linux/if_ether.h> header file.  */
-#define HAVE_LINUX_IF_ETHER_H 1
+/* #undef HAVE_LINUX_IF_ETHER_H */
 
 /* Define if you have kernel-mode PPPoE in Linux file.  */
 #define HAVE_LINUX_KERNEL_PPPOE 1
@@ -102,7 +102,7 @@
 #define HAVE_NETPACKET_PACKET_H 1
 
 /* Define if you have the <sys/cdefs.h> header file.  */
-#define HAVE_SYS_CDEFS_H 1
+/* #undef HAVE_SYS_CDEFS_H */
 
 /* Define if you have the <sys/dlpi.h> header file.  */
 /* #undef HAVE_SYS_DLPI_H */