5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local

@@ -25,14 +25,12 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#if defined(ELFOBJ)
 #pragma weak isnanf = __isnanf
 #pragma weak _isnanf = __isnanf
-#endif
 
 #include "libm.h"
 
 int
 isnanf(float x) {