Avoid test failures on AIX and OSF/1.

[gnulib.git] / lib / unistr / u-cpy-alloc.h

diff --git a/lib/unistr/u-cpy-alloc.h b/lib/unistr/u-cpy-alloc.h
index 7e18a18..dace3e2 100644 (file)
--- a/lib/unistr/u-cpy-alloc.h
+++ b/lib/unistr/u-cpy-alloc.h
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006-2007 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006-2007, 2009 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or modify it
@@ -23,7 +23,7 @@ FUNC (const UNIT *s, size_t n)
 {
   UNIT *dest;
 
-  dest = (UNIT *) malloc (n * sizeof (UNIT));
+  dest = (UNIT *) malloc (n > 0 ? n * sizeof (UNIT) : 1);
   if (dest != NULL)
     {
 #if 0