diff -rupN gcc-6.3.0-A/gcc/ada/terminals.c gcc-6.3.0-B/gcc/ada/terminals.c
--- gcc-6.3.0-A/gcc/ada/terminals.c	2016-02-12 00:53:54.000000000 +0100
+++ gcc-6.3.0-B/gcc/ada/terminals.c	2017-10-13 08:17:35.000000000 +0200
@@ -1068,12 +1068,6 @@ __gnat_setup_winsize (void *desc, int ro
 #include <stdio.h>
 #include <stdlib.h>
 
-/* On some system termio is either absent or including it will disable termios
-   (HP-UX) */
-#if !defined (__hpux__) && !defined (BSD) && !defined (__APPLE__) \
-  && !defined (__rtems__)
-#   include <termio.h>
-#endif
 
 #include <sys/ioctl.h>
 #include <termios.h>