--- a/usr.bin/rpcgen/rpc_scan.c
+++ b/usr.bin/rpcgen/rpc_scan.c
@@ -43,8 +43,12 @@ __FBSDID("$FreeBSD$");
  */
 
 #include <sys/types.h>
 
+// glibc + compat is broken from silly indirect header guard
+#define _SYS_WAIT_H
+# include <bits/waitflags.h>
+#undef _SYS_WAIT_H
 #include <sys/wait.h>
 #include <stdio.h>
 #include <ctype.h>
 #include <string.h>