--- curl-7.55.1/tests/server/tftpd.c.stropts	2017-08-08 00:42:29.000000000 +0200
+++ curl-7.55.1/tests/server/tftpd.c	2017-08-19 00:08:11.691109000 +0200
@@ -51,6 +51,7 @@
 
 #ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
+#include <stropts.h>
 #endif
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>