Commentary sync from coreutils.

[gnulib.git] / m4 / getopt.m4

diff --git a/m4/getopt.m4 b/m4/getopt.m4
index 6b98782..c0a73b2 100644 (file)
--- a/m4/getopt.m4
+++ b/m4/getopt.m4
@@ -1,11 +1,11 @@
-# getopt.m4 serial 11
-dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+# getopt.m4 serial 13
+dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 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.
 
 # The getopt module assume you want GNU getopt, with getopt_long etc,
-# rather than vanilla POSIX getopt.  This means your your code should
+# rather than vanilla POSIX getopt.  This means your code should
 # always include <getopt.h> for the getopt prototypes.
 
 AC_DEFUN([gl_GETOPT_SUBSTITUTE],
@@ -77,4 +77,7 @@ AC_DEFUN([gl_GETOPT_IFELSE],
 AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])
 
 # Prerequisites of lib/getopt*.
-AC_DEFUN([gl_PREREQ_GETOPT], [:])
+AC_DEFUN([gl_PREREQ_GETOPT],
+[
+  AC_CHECK_DECLS_ONCE([getenv])
+])