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>

          --- old/usr/src/lib/libm/common/C/lgamma_r.c
          +++ new/usr/src/lib/libm/common/C/lgamma_r.c

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *

  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  23   23   */
  24   24  /*
  25   25   * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  26   26   * Use is subject to license terms.
  27   27   */
  28   28  
  29      -#pragma weak lgamma_r = __lgamma_r
       29 +#pragma weak __lgamma_r = lgamma_r
  30   30  
  31   31  #include "libm.h"
  32   32  
  33   33  double
  34   34  lgamma_r(double x, int *signgamp) {
  35   35          double  g;
  36   36  
  37   37          if (isnan(x))
  38   38                  return (x * x);
  39   39  

  40   40          g = rint(x);
  41   41          if (x == g && x <= 0.0) {
  42   42                  *signgamp = 1;
  43   43                  return (_SVID_libm_err(x, x, 15));
  44   44          }
  45   45  
  46   46          g = __k_lgamma(x, signgamp);
  47   47          if (!finite(g))
  48   48              g = _SVID_libm_err(x, x, 14);
  49   49          return (g);
  50   50  }

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