osc/rdma: add missing #include <alloca.h>

ompi/mca/osc/rdma/osc_rdma_peer.c

@@ -2,6 +2,8 @@
 /*
  * Copyright (c) 2007-2015 Los Alamos National Security, LLC.  All rights
  *                         reserved.
+ * Copyright (c) 2015      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -9,6 +11,10 @@
  * $HEADER$
  */
 
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
+
 #include "osc_rdma_comm.h"
 
 #include "ompi/mca/bml/base/base.h"