From 2bbae2d15d4675818cb1b501bd29e83cae2c6690 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Tue, 1 Jul 2003 10:28:31 +0000
Subject: [PATCH] Ignore <unistd.h>.

---
 m4/ChangeLog  |  6 ++++++
 m4/ssize_t.m4 | 10 +++-------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 461fef07e..9703e1558 100644
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,9 @@
+2003-07-01  Bruno Haible  <bruno@clisp.org>
+
+	* ssize_t.m4 (gt_TYPE_SSIZE_T): Don't include <unistd.h>. <sys/types.h>
+	should be sufficient.
+	Reported by Paul Eggert.
+
 2003-06-25  Bruno Haible  <bruno@clisp.org>
 
 	* readlink.m4: New file.
diff --git a/m4/ssize_t.m4 b/m4/ssize_t.m4
index 708126bf3..5ea8c011c 100644
--- a/m4/ssize_t.m4
+++ b/m4/ssize_t.m4
@@ -1,4 +1,4 @@
-# ssize_t.m4 serial 2 (gettext-0.12.2)
+# ssize_t.m4 serial 3 (gettext-0.12.2)
 dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
 dnl This file is free software, distributed under the terms of the GNU
 dnl General Public License.  As a special exception to the GNU General
@@ -11,13 +11,9 @@ dnl Test whether ssize_t is defined.
 
 AC_DEFUN([gt_TYPE_SSIZE_T],
 [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CACHE_CHECK([for ssize_t], gt_cv_ssize_t,
-    [AC_TRY_COMPILE([
-#include <sys/types.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif], [int x = sizeof (ssize_t *) + sizeof (ssize_t);],
+    [AC_TRY_COMPILE([#include <sys/types.h>],
+       [int x = sizeof (ssize_t *) + sizeof (ssize_t);],
        gt_cv_ssize_t=yes, gt_cv_ssize_t=no)])
   if test $gt_cv_ssize_t = no; then
     AC_DEFINE(ssize_t, int,
-- 
2.11.0