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-rw-r--r--cpukit/libnetworking/net/rtsock.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/cpukit/libnetworking/net/rtsock.c b/cpukit/libnetworking/net/rtsock.c
index 5a031221b1..d0d46b3a84 100644
--- a/cpukit/libnetworking/net/rtsock.c
+++ b/cpukit/libnetworking/net/rtsock.c
@@ -48,6 +48,7 @@
#include <sys/protosw.h>
#include <net/if.h>
+#include <net/if_var.h>
#include <net/route.h>
#include <net/raw_cb.h>