(gl_SAVE_CWD): Check for fchdir.

diff --git a/m4/save-cwd.m4 b/m4/save-cwd.m4
index 685d34e..fbe3279 100644 (file)
--- a/m4/save-cwd.m4
+++ b/m4/save-cwd.m4
@@ -1,4 +1,4 @@
-# save-cwd.m4 serial 4
+#serial 5
 dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,5 +9,6 @@ AC_DEFUN([gl_SAVE_CWD],
   AC_LIBSOURCES([save-cwd.c, save-cwd.h])
   AC_LIBOBJ([save-cwd])
   dnl Prerequisites for lib/save-cwd.c.
+  AC_CHECK_FUNCS_ONCE(fchdir)
   AC_CHECK_HEADERS_ONCE(fcntl.h unistd.h)
 ])