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 lrint = __lrint
+#pragma weak __lrint = lrint
 
 /*
  * lrint(x) rounds its argument to the nearest integer according
  * to the current rounding direction and converts the result to
  * a 32 bit signed integer.