5261 libm should stop using synonyms.h

@@ -25,14 +25,14 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak llroundf = __llroundf
+#pragma weak __llroundf = llroundf
 #if defined(__sparcv9) || defined(__amd64)
-#pragma weak lroundf = __llroundf
-#pragma weak __lroundf = __llroundf
+#pragma weak lroundf = llroundf
+#pragma weak __lroundf = llroundf
 #endif
 
 #include "libm.h"
 
 long long