source: trunk/m4/float_kludge.m4 @ 704

# Copyright (C) 2005-2008 David Carter <arm4@arm4.org>
#  
# This file is free software; as a special exception the author gives
# unlimited permission to copy and/or distribute it, with or without 
# modifications, as long as this notice is preserved.
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# Macros to ensure that java floating point values can be shoe horned into
# other metric fields.

AC_DEFUN([ARM4_FLOAT_KLUDGE],
[
  no_kludge=""
  AC_MSG_CHECKING(for float kludge)

  AC_RUN_IFELSE([
#include "include/arm4.h"

int main (void)
{
  if (sizeof (float) <= sizeof (arm_metric_cntrdivr32_t))
    exit (0);
  else
    exit (1);
}
],, no_kludge=yes,)

  if test "x$no_kludge" = x ; then
    AC_MSG_RESULT(yes)
  else
    AC_MSG_RESULT(no)
    AC_MSG_ERROR([floating point values can't be forced into arm_metric_cntrdivr32_t fields])
  fi
])