Index: lib/sanitizer_common/sanitizer_platform_limits_posix.cc
===================================================================
--- lib/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ lib/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -14,6 +14,12 @@
 
 
 #include "sanitizer_platform.h"
+#if SANITIZER_FREEBSD
+#define _WANT_RTENTRY
+#include <sys/param.h>
+#include <sys/socketvar.h>
+#endif
+
 #if SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_MAC
 
 #include <arpa/inet.h>