kc3-lang/gnulib/m4/longdouble.m4

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• Hash : 35b6e3c3
  Author :
  Date : 2003-08-13T20:23:14
  

  Leave whitespace alone when importing, undoing that part of yesterday's
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• m4/longdouble.m4

• # longdouble.m4 serial 1 (gettext-0.12)
  dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
  dnl This file is free software, distributed under the terms of the GNU
  dnl General Public License.  As a special exception to the GNU General
  dnl Public License, this file may be distributed as part of a program
  dnl that contains a configuration script generated by Autoconf, under
  dnl the same distribution terms as the rest of that program.
  
  dnl From Bruno Haible.
  dnl Test whether the compiler supports the 'long double' type.
  dnl Prerequisite: AC_PROG_CC
  
  AC_DEFUN([gt_TYPE_LONGDOUBLE],
  [
    AC_CACHE_CHECK([for long double], gt_cv_c_long_double,
      [if test "$GCC" = yes; then
         gt_cv_c_long_double=yes
       else
         AC_TRY_COMPILE([
           /* The Stardent Vistra knows sizeof(long double), but does not support it.  */
           long double foo = 0.0;
           /* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
           int array [2*(sizeof(long double) >= sizeof(double)) - 1];
           ], ,
           gt_cv_c_long_double=yes, gt_cv_c_long_double=no)
       fi])
    if test $gt_cv_c_long_double = yes; then
      AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the 'long double' type.])
    fi
  ])
  

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