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5261 libm should stop using synonyms.h

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          --- old/usr/src/lib/libm/common/LD/hypotl.c
          +++ new/usr/src/lib/libm/common/LD/hypotl.c
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  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24   24   */
  25   25  /*
  26   26   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27   27   * Use is subject to license terms.
  28   28   */
  29   29  
  30      -#pragma weak hypotl = __hypotl
       30 +#pragma weak __hypotl = hypotl
  31   31  
  32   32  /*
  33   33   * hypotl(x,y)
  34   34   * Method :
  35   35   *      If z=x*x+y*y has error less than sqrt(2)/2 ulp than sqrt(z) has
  36   36   *      error less than 1 ulp.
  37   37   *      So, compute sqrt(x*x+y*y) with some care as follows:
  38   38   *      Assume x>y>0;
  39   39   *      1. save and set rounding to round-to-nearest
  40   40   *      2. if x > 2y  use
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