autotools: define N_SLCAN, if not already declared

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>

diff --git a/configure.ac b/configure.ac
index 3b695d3aa9ead3cb2e2bc1f9d9f6960b4b367f0c..633ba817e01368315aca306dceee9b94838a556a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -83,6 +83,9 @@ AC_CHECK_DECL(PF_CAN,,
 AC_CHECK_DECL(AF_CAN,,
     [AC_DEFINE([AF_CAN], [PF_CAN], [AF_CAN])]
 )
+AC_CHECK_DECL(N_SLCAN,,
+    [AC_DEFINE([N_SLCAN], [17], [N_SLCAN])]
+)
 
 
 #