5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Approved by: Gordon Ross <gwr@nexenta.com>

          --- old/usr/src/lib/libm/common/m9x/fmaxl.c
          +++ new/usr/src/lib/libm/common/m9x/fmaxl.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  /*
  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      -#if defined(ELFOBJ)
  31   30  #pragma weak fmaxl = __fmaxl
  32      -#endif
  33   31  
  34   32  #include "libm.h"       /* for isgreaterequal macro */
  35   33  
  36   34  long double
  37   35  __fmaxl(long double x, long double y) {
  38   36          union {
  39   37  #if defined(__sparc)
  40   38                  unsigned i[4];
  41   39  #elif defined(__x86)
  42   40                  unsigned i[3];

  43   41  #else
  44   42  #error Unknown architecture
  45   43  #endif
  46   44                  long double ld;
  47   45          } xx, yy;
  48   46          unsigned s;
  49   47  
  50   48          /* if y is nan, replace it by x */
  51   49          if (y != y)
  52   50                  y = x;
  53   51  
  54   52          /* if x is nan, replace it by y */
  55   53          if (x != x)
  56   54                  x = y;
  57   55  
  58   56          /* At this point, x and y are either both numeric, or both NaN */
  59   57          if (!isnan(x) && !isgreaterequal(x, y))
  60   58                  x = y;
  61   59  
  62   60          /*
  63   61           * clear the sign of the result if either x or y has its sign clear
  64   62           */
  65   63          xx.ld = x;
  66   64          yy.ld = y;
  67   65  #if defined(__sparc)
  68   66          s = ~(xx.i[0] & yy.i[0]) & 0x80000000;
  69   67          xx.i[0] &= ~s;
  70   68  #elif defined(__x86)
  71   69          s = ~(xx.i[2] & yy.i[2]) & 0x8000;
  72   70          xx.i[2] &= ~s;
  73   71  #else
  74   72  #error Unknown architecture
  75   73  #endif
  76   74  
  77   75          return (xx.ld);
  78   76  }

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