X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Frmdir-errno.m4;h=4aca05451248d0664c65d1a6f8fa12d5a762b6b2;hb=a933e8ee26612cb6857993cc921cc8e86161f488;hp=cb21d802605d8c46ea7a36e1f666601ae37abfc3;hpb=ee76465ad82c04707c78ff3ed723358217c9e34f;p=gnulib.git

diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
index cb21d8026..4aca05451 100644
--- a/m4/rmdir-errno.m4
+++ b/m4/rmdir-errno.m4
@@ -1,14 +1,20 @@
-#serial 3
+# serial 9
+
+# Copyright (C) 2000, 2001, 2005, 2006, 2009 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
 # When rmdir fails because the specified directory is not empty, it sets
 # errno to some value, usually ENOTEMPTY.  However, on some AIX systems,
 # ENOTEMPTY is mistakenly defined to be EEXIST.  To work around this, and
 # in general, to avoid depending on the use of any particular symbol, this
 # test runs a test to determine the actual numeric value.
-AC_DEFUN([fetish_FUNC_RMDIR_NOTEMPTY],
+AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
 [dnl
+  AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_CACHE_CHECK([for rmdir-not-empty errno value],
-    fetish_cv_func_rmdir_errno_not_empty,
+    gl_cv_func_rmdir_errno_not_empty,
     [
       # Arrange for deletion of the temporary directory this test creates.
       ac_clean_files="$ac_clean_files confdir2"
@@ -16,8 +22,8 @@ AC_DEFUN([fetish_FUNC_RMDIR_NOTEMPTY],
       AC_TRY_RUN([
 #include <stdio.h>
 #include <errno.h>
-#ifndef errno
-extern int errno;
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
 #endif
 	int main ()
 	{
@@ -27,17 +33,17 @@ extern int errno;
 	  val = errno;
 	  s = fopen ("confdir2/errno", "w");
 	  fprintf (s, "%d\n", val);
-	  exit (0);
+	  return 0;
 	}
 	],
-      fetish_cv_func_rmdir_errno_not_empty=`cat confdir2/errno`,
-      fetish_cv_func_rmdir_errno_not_empty='configure error in rmdir-errno.m4',
-      fetish_cv_func_rmdir_errno_not_empty=ENOTEMPTY
+      gl_cv_func_rmdir_errno_not_empty=`cat confdir2/errno`,
+      gl_cv_func_rmdir_errno_not_empty='configure error in rmdir-errno.m4',
+      gl_cv_func_rmdir_errno_not_empty=ENOTEMPTY
       )
     ]
   )
 
   AC_DEFINE_UNQUOTED([RMDIR_ERRNO_NOT_EMPTY],
-    $fetish_cv_func_rmdir_errno_not_empty,
+    $gl_cv_func_rmdir_errno_not_empty,
     [the value to which errno is set when rmdir fails on a nonempty directory])
 ])