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-rwxr-xr-xconfigure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 51bc8bd7..92c831ab 100755
--- a/configure.ac
+++ b/configure.ac
@@ -472,6 +472,9 @@ m4_define([QUAGGA_INCLUDES],
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
+#ifdef __APPLE__
+# define __APPLE_USE_RFC_3542
+#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif