X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=m4%2Ftuntap.m4;h=585b41f3cfb495aa6eb63b086f18f7331296edcd;hp=28ddc9ecc12876de4fb15535148ece5a6165ee9c;hb=782171fd2c59b7cc5568d2d4b33ce041834710ec;hpb=3b455b8f318528206b08121f5ce93d16e4ea01df

diff --git a/m4/tuntap.m4 b/m4/tuntap.m4
index 28ddc9ec..585b41f3 100644
--- a/m4/tuntap.m4
+++ b/m4/tuntap.m4
@@ -14,14 +14,16 @@ AC_CACHE_CHECK([for directory with kernel source], tinc_cv_kerneldir,
   AC_MSG_RESULT($kerneldir)
 ])
 AC_CACHE_CHECK([for linux/if_tun.h], tinc_cv_linux_if_tun_h,
-[ AC_TRY_COMPILE([linux/if_tun.h],
+[ AC_TRY_COMPILE([#include <linux/if_tun.h>],
   [int a = IFF_TAP],
   if_tun_h="linux/if_tun.h",
-  [ AC_TRY_COMPILE([$kerneldir/include/linux/if_tun.h],
+  if_tun_h="no")
+  if test $if_tun_h = no; then
+    AC_TRY_COMPILE([#include "$kerneldir/include/linux/if_tun.h"],
     [int a = IFF_TAP],
     if_tun_h="$kerneldir/include/linux/if_tun.h",
     if_tun_h="no")
-  ])
+  fi
   if test $if_tun_h = no; then
     AC_MSG_RESULT(none)
   else