sd-pppoe: include ppp_defs.h

On older kernels before this patch:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e8b671460410c8fd996c8a1c228b718c547cc236
ppp-ioctl.h did not pull in ppp_defs.h which results in build errors

diff --git a/src/libsystemd-network/sd-pppoe.c b/src/libsystemd-network/sd-pppoe.c
index 6f33541..21ddaeb 100644 (file)
--- a/src/libsystemd-network/sd-pppoe.c
+++ b/src/libsystemd-network/sd-pppoe.c
@@ -22,6 +22,7 @@
 /* See RFC 2516 */
 
 #include <sys/ioctl.h>
+#include <linux/ppp_defs.h>
 #include <linux/ppp-ioctl.h>
 #include <net/if.h>
 #include <netinet/in.h>