if_tun_h="\"$kerneldir/include/linux/if_tun.h\"",
[AC_TRY_COMPILE([#include <linux/if_tun.h>],
[int a = IFF_TAP;],
- if_tun_h="<linux/if_tun.h>",
+ if_tun_h="default",
if_tun_h="no"
)]
)
if test $tinc_cv_linux_if_tun_h != none; then
AC_DEFINE(HAVE_TUNTAP)
- AC_DEFINE_UNQUOTED(LINUX_IF_TUN_H, $tinc_cv_linux_if_tun_h)
- AC_SUBST(LINUX_IF_TUN_H)
+ if test $tinc_cv_linux_if_tun_h != default; then
+ AC_DEFINE_UNQUOTED(LINUX_IF_TUN_H, $tinc_cv_linux_if_tun_h)
+ fi
fi
+AC_SUBST(LINUX_IF_TUN_H)
AC_SUBST(HAVE_TUNTAP)
])