configure: Add if_mib.h prerequisites.

Signed-off-by: Ed Maste <emaste@freebsd.org>
Signed-off-by: Ben Pfaff <blp@nicira.com>

diff --git a/configure.ac b/configure.ac
index 1e23289..91f3835 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -63,8 +63,9 @@ AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec, struct stat.st_mtimensec],
   [], [], [[#include <sys/stat.h>]])
 AC_CHECK_MEMBERS([struct ifreq.ifr_flagshigh], [], [], [[#include <net/if.h>]])
 AC_CHECK_FUNCS([mlockall strnlen strsignal getloadavg statvfs getmntent_r])
-AC_CHECK_HEADERS(
-  [mntent.h sys/statvfs.h linux/types.h linux/if_ether.h net/if_mib.h])
+AC_CHECK_HEADERS([mntent.h sys/statvfs.h linux/types.h linux/if_ether.h])
+AC_CHECK_HEADERS([net/if_mib.h], [], [], [[#include <sys/types.h>
+#include <net/if.h>]])
 
 OVS_CHECK_PKIDIR
 OVS_CHECK_RUNDIR