/xbmc/screensavers/rsxs-0.9/m4/longdouble.m4
http://github.com/xbmc/xbmc · m4 · 31 lines · 27 code · 3 blank · 1 comment · 0 complexity · aa3cd78315f1cbfe757f5a67e885ca37 MD5 · raw file
- # longdouble.m4 serial 2 (gettext-0.15)
- dnl Copyright (C) 2002-2003, 2006 Free Software Foundation, Inc.
- dnl This file is free software; the Free Software Foundation
- dnl gives unlimited permission to copy and/or distribute it,
- dnl with or without modifications, as long as this notice is preserved.
- dnl From Bruno Haible.
- dnl Test whether the compiler supports the 'long double' type.
- dnl Prerequisite: AC_PROG_CC
- dnl This file is only needed in autoconf <= 2.59. Newer versions of autoconf
- dnl have a macro AC_TYPE_LONG_DOUBLE with identical semantics.
- 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
- ])