tun-device: Include <linux/types.h> before <linux/if_tun.h>

Fixes a build error on CentOS 6.4.

diff --git a/src/libstrongswan/networking/tun_device.c b/src/libstrongswan/networking/tun_device.c
index 65268d242ad4f1b1b56ced09d983d68839e4916a..ef296357e224af37c2385c0d0453791431ad1bce 100644 (file)
--- a/src/libstrongswan/networking/tun_device.c
+++ b/src/libstrongswan/networking/tun_device.c
@@ -46,6 +46,7 @@ tun_device_t *tun_device_create(const char *name_tmpl)
 #include <netinet/in_var.h>
 #include <sys/kern_control.h>
 #elif defined(__linux__)
+#include <linux/types.h>
 #include <linux/if_tun.h>
 #else
 #include <net/if_tun.h>