5261 libm should stop using synonyms.h

@@ -25,11 +25,11 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak cpowl = __cpowl
+#pragma weak __cpowl = cpowl
 
 #include "libm.h"                               /* __k_clog_rl/__k_atan2l */
 /* atan2l/atan2pil/exp2l/expl/fabsl/hypotl/isinfl/logl/powl/sincosl/sincospil */
 #include "complex_wrapper.h"
 #include "longdouble.h"