5261 libm should stop using synonyms.h

*** 25,47 ****
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak feclearexcept = __feclearexcept
! #pragma weak feraiseexcept = __feraiseexcept
! #pragma weak fetestexcept = __fetestexcept
! #pragma weak fegetexceptflag = __fegetexceptflag
! #pragma weak fesetexceptflag = __fesetexceptflag
! 
! #pragma weak feclearexcept96 = __feclearexcept
! #pragma weak feraiseexcept96 = __feraiseexcept
! #pragma weak fetestexcept96 = __fetestexcept
! #pragma weak fegetexceptflag96 = __fegetexceptflag
! #pragma weak fesetexceptflag96 = __fesetexceptflag
  
- #include "fenv_synonyms.h"
  #include <fenv.h>
  #include <sys/ieeefp.h>
  #include <ucontext.h>
  #include <thread.h>
  #include "fex_handler.h"
--- 25,46 ----
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak __feclearexcept = feclearexcept
! #pragma weak __feraiseexcept = feraiseexcept
! #pragma weak __fetestexcept = fetestexcept
! #pragma weak __fegetexceptflag = fegetexceptflag
! #pragma weak __fesetexceptflag = fesetexceptflag
! 
! #pragma weak feclearexcept96 = feclearexcept
! #pragma weak feraiseexcept96 = feraiseexcept
! #pragma weak fetestexcept96 = fetestexcept
! #pragma weak fegetexceptflag96 = fegetexceptflag
! #pragma weak fesetexceptflag96 = fesetexceptflag
  
  #include <fenv.h>
  #include <sys/ieeefp.h>
  #include <ucontext.h>
  #include <thread.h>
  #include "fex_handler.h"