X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsys_wait_h.m4;h=c0bba86484ebb3dc678a0f0601d86ad01e51084c;hb=03ea4328ae1ea7e985f7fd9a42ebf77bc64bd47c;hp=63e1d21e4a1901e65b2b4ded9ad57f88287a9aa0;hpb=77a06aac2187e2ea13e5b7aa8e30d46a81ca45f8;p=gnulib.git

diff --git a/m4/sys_wait_h.m4 b/m4/sys_wait_h.m4
index 63e1d21e4..c0bba8648 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) 2008-2010 Free Software Foundation, Inc.
+# sys_wait_h.m4 serial 6
+dnl Copyright (C) 2008-2012 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>]],