5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>

*** 24,34 ****
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak exp2 = __exp2
  
  /* INDENT OFF */
  /*
   * exp2(x)
   * Code by K.C. Ng for SUN 4.0 libm.
--- 24,34 ----
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma weak __exp2 = exp2
  
  /* INDENT OFF */
  /*
   * exp2(x)
   * Code by K.C. Ng for SUN 4.0 libm.