# intdiv0.m4 serial 1 (gettext-0.11.3)dnl Copyright (C) 2002 Free Software Foundation, Inc.dnl This file is free software, distributed under the terms of the GNUdnl General Public License. As a special exception to the GNU Generaldnl Public License, this file may be distributed as part of a programdnl that contains a configuration script generated by Autoconf, underdnl the same distribution terms as the rest of that program.dnl From Bruno Haible.AC_DEFUN([gt_INTDIV0],[AC_REQUIRE([AC_PROG_CC])dnlAC_REQUIRE([AC_CANONICAL_HOST])dnlAC_CACHE_CHECK([whether integer division by zero raises SIGFPE],gt_cv_int_divbyzero_sigfpe,[AC_TRY_RUN([#include <stdlib.h>#include <signal.h>static void#ifdef __cplusplussigfpe_handler (int sig)#elsesigfpe_handler (sig) int sig;#endif{/* Exit with code 0 if SIGFPE, with code 1 if any other signal. */exit (sig != SIGFPE);}int x = 1;int y = 0;int z;int nan;int main (){signal (SIGFPE, sigfpe_handler);/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP. */#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP)signal (SIGTRAP, sigfpe_handler);#endif/* Linux/SPARC yields signal SIGILL. */#if defined (__sparc__) && defined (__linux__)signal (SIGILL, sigfpe_handler);#endifz = x / y;nan = y / y;exit (1);}], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,[# Guess based on the CPU.case "$host_cpu" inalpha* | i[34567]86 | m68k | s390*)gt_cv_int_divbyzero_sigfpe="guessing yes";;*)gt_cv_int_divbyzero_sigfpe="guessing no";;esac])])case "$gt_cv_int_divbyzero_sigfpe" in*yes) value=1;;*) value=0;;esacAC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value,[Define if integer division by zero raises signal SIGFPE.])])