freopen: Don't crash if the filename argument is NULL.

[gnulib.git] / m4 / pipe.m4

diff --git a/m4/pipe.m4 b/m4/pipe.m4
index ae00049..9013174 100644 (file)
--- a/m4/pipe.m4
+++ b/m4/pipe.m4
@@ -1,4 +1,4 @@
-# pipe.m4 serial 1
+# pipe.m4 serial 2
 dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -11,6 +11,5 @@ AC_DEFUN([gl_FUNC_PIPE],
   AC_CHECK_FUNCS_ONCE([pipe])
   if test $ac_cv_func_pipe != yes; then
     HAVE_PIPE=0
-    AC_LIBOBJ([pipe])
   fi
 ])