--- a/gcc/ada/s-oscons-tmplt.c	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/ada/s-oscons-tmplt.c	Thu Oct 25 07:37:49 2018 +0900
@@ -7,7 +7,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 2000-2017, Free Software Foundation, Inc.         --
+--          Copyright (C) 2000-2018, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -157,7 +157,8 @@
 # include <_types.h>
 #endif
 
-#if defined (__linux__) || defined (__ANDROID__) || defined (__rtems__)
+#if defined (__linux__) || defined (__ANDROID__) || defined (__QNX__) \
+  || defined (__rtems__)
 # include <pthread.h>
 # include <signal.h>
 #endif
@@ -1191,7 +1192,7 @@
 #endif
 CND(MSG_NOSIGNAL, "No SIGPIPE on send")
 
-#if defined (__linux__) || defined (__ANDROID__)
+#if defined (__linux__) || defined (__ANDROID__) || defined (__QNX__)
 # define MSG_Forced_Flags "MSG_NOSIGNAL"
 #else
 # define MSG_Forced_Flags "0"
@@ -1361,7 +1362,7 @@
 #define SIZEOF_struct_servent (sizeof (struct servent))
 CND(SIZEOF_struct_servent, "struct servent")
 
-#if defined (__linux__) || defined (__ANDROID__)
+#if defined (__linux__) || defined (__ANDROID__) || defined (__QNX__)
 #define SIZEOF_sigset (sizeof (sigset_t))
 CND(SIZEOF_sigset, "sigset")
 #endif
@@ -1442,7 +1443,7 @@
 
 #if defined(__linux__) || defined(__FreeBSD__) \
  || (defined(_AIX) && defined(_AIXVERSION_530)) \
- || defined(__DragonFly__)
+ || defined(__DragonFly__) || defined(__QNX__)
 /** On these platforms use system provided monotonic clock instead of
  ** the default CLOCK_REALTIME. We then need to set up cond var attributes
  ** appropriately (see thread.c).
@@ -1464,7 +1465,7 @@
 #endif
 
 #if defined (__APPLE__) || defined (__linux__) || defined (__ANDROID__) \
-  || defined (__rtems__) || defined (DUMMY)
+  || defined (__QNX__) || defined (__rtems__) || defined (DUMMY)
 /*
 
    --  Sizes of pthread data types