configure: Add macros to check for #include_next and add a workaround.

[mirror_ovs.git] / m4 / openvswitch.m4

diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
index 9b7f0b5fd1e322f82cf558863e260bd9a5a6d454..b8157c04505d39062a0a4ecf9450bd4fce8b29eb 100644 (file)
--- a/m4/openvswitch.m4
+++ b/m4/openvswitch.m4
@@ -458,3 +458,8 @@ dnl OVS_CHECK_POSIX_AIO
 AC_DEFUN([OVS_CHECK_POSIX_AIO],
   [AC_SEARCH_LIBS([aio_write], [rt])
    AM_CONDITIONAL([HAVE_POSIX_AIO], [test "$ac_cv_search_aio_write" != no])])
+
+dnl OVS_CHECK_INCLUDE_NEXT
+AC_DEFUN([OVS_CHECK_INCLUDE_NEXT],
+  [AC_REQUIRE([gl_CHECK_NEXT_HEADERS])
+   gl_CHECK_NEXT_HEADERS([$1])])