Fix quoting in double-slash-root.m4.

* m4/double-slash-root.m4 (gl_DOUBLE_SLASH_ROOT): Fix quoting,
hide error from 'ls', needed on OS/2.
Report by Elbert Pol <elbert.pol@gmail.com>.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

diff --git a/ChangeLog b/ChangeLog
index 4d39160..1848b05 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+       * m4/double-slash-root.m4 (gl_DOUBLE_SLASH_ROOT): Fix quoting,
+       hide error from 'ls', needed on OS/2.
+       Report by Elbert Pol <elbert.pol@gmail.com>.
+
 2008-04-04  Eric Blake  <ebb9@byu.net>
 
        Make test-fseeko.c failures meaningful.

diff --git a/m4/double-slash-root.m4 b/m4/double-slash-root.m4
index 69d60d0..23bf5b0 100644 (file)
--- a/m4/double-slash-root.m4
+++ b/m4/double-slash-root.m4
@@ -1,5 +1,5 @@
-# double-slash-root.m4 serial 2   -*- Autoconf -*-
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# double-slash-root.m4 serial 3   -*- Autoconf -*-
+dnl Copyright (C) 2006, 2008 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.
@@ -24,8 +24,8 @@ AC_DEFUN([gl_DOUBLE_SLASH_ROOT],
            gl_cv_double_slash_root='unknown, assuming no' ;;
        esac
       else
-       set x `ls -di / //`
-       if test $[2] = $[4] && wc //dev/null >/dev/null 2>&1; then
+       set x `ls -di / // 2>/dev/null`
+       if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then
          gl_cv_double_slash_root=no
        else
          gl_cv_double_slash_root=yes