X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsys_wait_h.m4;h=a9676c29967a39222b85d655fa508144ba48fbd5;hb=refs%2Fheads%2Fmaster;hp=e3b147c4fd700bca1b2497d91360fef06d9c8bfa;hpb=d599e5add275f75ed08e6527b8ee4d3f4f7c3aea;p=gnulib.git

diff --git a/m4/sys_wait_h.m4 b/m4/sys_wait_h.m4
index e3b147c4f..a9676c299 100644
--- a/m4/sys_wait_h.m4
+++ b/m4/sys_wait_h.m4
@@ -1,5 +1,5 @@
-# sys_wait_h.m4 serial 5
-dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
+# sys_wait_h.m4 serial 6
+dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -11,6 +11,9 @@ AC_DEFUN([gl_SYS_WAIT_H],
   dnl <sys/wait.h> is always overridden, because of GNULIB_POSIXCHECK.
   gl_CHECK_NEXT_HEADERS([sys/wait.h])
 
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[#include <sys/wait.h>]],