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 pow = __pow
+#pragma weak __pow = pow
 
 /*
  * pow(x,y) return x**y
  *                    n
  * Method:  Let x =  2   * (1+f)