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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>

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          --- old/usr/src/lib/libm/common/LD/tanl.c
          +++ new/usr/src/lib/libm/common/LD/tanl.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 tanl = __tanl
       30 +#pragma weak __tanl = tanl
  31   31  
  32   32  /* INDENT OFF */
  33   33  /* cosl(x)
  34   34   * Table look-up algorithm by K.C. Ng, November, 1989.
  35   35   *
  36   36   * kernel function:
  37   37   *      __k_tanl        ... tangent function on [-pi/4,pi/4]
  38   38   *      __rem_pio2l     ... argument reduction routine
  39   39   *
  40   40   * Method.
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  55   55   *      Let trig be any of sin, cos, or tan.
  56   56   *      trig(+-INF)  is NaN, with signals;
  57   57   *      trig(NaN)    is that NaN;
  58   58   *
  59   59   * Accuracy:
  60   60   *      computer TRIG(x) returns trig(x) nearly rounded.
  61   61   */
  62   62  /* INDENT ON */
  63   63  
  64   64  #include "libm.h"
  65      -#include "libm_synonyms.h"
  66   65  #include "longdouble.h"
  67   66  
  68   67  #include <sys/isa_defs.h>
  69   68  
  70   69  long double
  71   70  tanl(long double x) {
  72   71          long double y[2], z = 0.0L;
  73   72          int n, ix;
  74   73  #if defined(__i386) || defined(__amd64)
  75   74          int *px = (int *) &x;
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