link-follow: fix the "checking..." message to not mention trailing slash

[gnulib.git] / m4 / rmdir-errno.m4

diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
index f7d8669..4aca054 100644 (file)
--- a/m4/rmdir-errno.m4
+++ b/m4/rmdir-errno.m4
@@ -1,14 +1,20 @@
-#serial 1
+# 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 ()
        {
@@ -25,19 +31,19 @@ extern int errno;
          int val;
          rmdir ("confdir2");
          val = errno;
-         s = fopen ("confdir2/file", "w");
+         s = fopen ("confdir2/errno", "w");
          fprintf (s, "%d\n", val);
-         exit (0);
+         return 0;
        }
        ],
-      fetish_cv_func_rmdir_errno_not_empty=`cat confdir2/file`,
-      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])
 ])