dnl -*- Autoconf -*-
dnl Copyright (C) 1993-2003 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, Marcus Daniels, Sam Steingold.
AC_PREREQ(2.57)
AC_DEFUN([CL_LONGLONG],
[AC_CACHE_CHECK(for long long type, cl_cv_c_longlong, [
AC_TRY_RUN([int main()
{
/* long longs don't work right with gcc-2.7.2 on m68k */
/* long longs don't work right with gcc-2.7.2 on rs6000: avcall/tests.c gets
miscompiled. */
#if defined(__m68k__) || (defined(_IBMR2) || defined(__powerpc))
#if defined(__GNUC__) && (__GNUC__ == 2) && (__GNUC_MINOR__ <= 7)
exit(1);
#endif
#endif
{ long x = 944938507; long y = 737962842; long z = 162359677;
exit(!(((long long) x)*((long long) y)>>32 == z));
}
}],
cl_cv_c_longlong=yes, cl_cv_c_longlong=no,
dnl When cross-compiling, don't assume anything.
cl_cv_c_longlong="guessing no")
])
case "$cl_cv_c_longlong" in
*yes) AC_DEFINE(HAVE_LONGLONG,,[compiler supports the `long long' type]) ;;
*no) ;;
esac
])