fix getting the STARPU_HAVE_HWLOC flag

tests/datawizard/reclaim.c

@@ -1,6 +1,6 @@
 /* StarPU --- Runtime system for heterogeneous multicore architectures.
  *
- * Copyright (C) 2010  Université de Bordeaux 1
+ * Copyright (C) 2010-2011  Université de Bordeaux 1
  *
  * StarPU is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -21,6 +21,7 @@
 
 #include <assert.h>
 #include <starpu.h>
+#include <common/config.h>
 #ifdef STARPU_HAVE_HWLOC
 #include <hwloc.h>
 #endif