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--- configure.in.orig Fri Jul 14 06:55:27 2006
+++ configure.in Tue Feb 27 20:29:49 2007
@@ -2171,7 +2171,7 @@
# fall back
CFLAG="-f"
fi
-for i in /vmunix /hp-ux /stand/vmunix /dev/ksyms /kernel/unix /kernel/genunix /netbsd /unix /kernel /bsd /mach_kernel /boot/kernel/kernel
+for i in /vmunix /hp-ux /stand/vmunix /dev/ksyms /kernel/unix /kernel/genunix /netbsd /unix /kernel /bsd /mach_kernel /boot/kernel/kernel /dev/null
do
if test -f $i -o $CFLAG $i; then
ac_cv_KERNEL_LOC="$i"
@@ -3145,6 +3145,26 @@
# checking for 4.3 vs 4.4 rtentry.
AC_CACHE_CHECK(type of rtentry structure,ac_cv_RTENTRY_TYPE,
[
+
+dnl 4.4 compatible but renamed on FreeBSD
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#define KERNEL
+#define _KERNEL
+#include <sys/socket.h>
+#undef KERNEL
+#undef _KERNEL
+#include <net/route.h>
+],[
+
+#ifndef STRUCT_RTENTRY_HAS_RT_DST
+#define rt_dst rt_nodes->rn_key
+#endif
+
+ struct rtentry rt;
+ rt.rt_nodes[0].rn_bit = 1;
+ rt.rt_dst;
+ ], ac_cv_RTENTRY_TYPE="BSD-4.4")
# 4.4 compat
AC_TRY_COMPILE([
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