5261 libm should stop using synonyms.h

*** 25,38 ****
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak llrint = __llrint
  #if defined(__sparcv9) || defined(__amd64)
! #pragma weak lrint = __llrint
! #pragma weak __lrint = __llrint
  #endif
  
  /*
   * llrint(x) rounds its argument to the nearest integer according
   * to the current rounding direction and converts the result to a
--- 25,38 ----
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak __llrint = llrint
  #if defined(__sparcv9) || defined(__amd64)
! #pragma weak lrint = llrint
! #pragma weak __lrint = llrint
  #endif
  
  /*
   * llrint(x) rounds its argument to the nearest integer according
   * to the current rounding direction and converts the result to a