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  • Committer: Scott James Remnant
  • Date: 2010-02-04 23:39:59 UTC
  • mfrom: (1182.1.45 upstart)
  • mto: This revision was merged to the branch mainline in revision 1250.
  • Revision ID: scott@netsplit.com-20100204233959-7kajqjnaoh7208ob
Tags: upstream-0.6.5
Import upstream version 0.6.5

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m4/intdiv0.m4
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# intdiv0.m4 serial 1 (gettext-0.11.3)
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dnl Copyright (C) 2002 Free Software Foundation, Inc.
 
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# intdiv0.m4 serial 2 (gettext-0.17)
 
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dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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  AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
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    gt_cv_int_divbyzero_sigfpe,
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    [
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      AC_TRY_RUN([
 
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      gt_cv_int_divbyzero_sigfpe=
 
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changequote(,)dnl
 
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      case "$host_os" in
 
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        macos* | darwin[6-9]* | darwin[1-9][0-9]*)
 
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          # On MacOS X 10.2 or newer, just assume the same as when cross-
 
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          # compiling. If we were to perform the real test, 1 Crash Report
 
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          # dialog window would pop up.
 
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          case "$host_cpu" in
 
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            i[34567]86 | x86_64)
 
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              gt_cv_int_divbyzero_sigfpe="guessing yes" ;;
 
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          esac
 
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          ;;
 
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      esac
 
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changequote([,])dnl
 
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      if test -z "$gt_cv_int_divbyzero_sigfpe"; then
 
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        AC_TRY_RUN([
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#include <stdlib.h>
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#include <signal.h>
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static void
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#ifdef __cplusplus
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sigfpe_handler (int sig)
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#else
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sigfpe_handler (sig) int sig;
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#endif
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{
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  /* Exit with code 0 if SIGFPE, with code 1 if any other signal.  */
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  exit (sig != SIGFPE);
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  exit (1);
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}
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], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
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        [
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          # Guess based on the CPU.
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          case "$host_cpu" in
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            alpha* | i[34567]86 | m68k | s390*)
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              gt_cv_int_divbyzero_sigfpe="guessing yes";;
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            *)
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              gt_cv_int_divbyzero_sigfpe="guessing no";;
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          esac
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        ])
 
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          [
 
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            # Guess based on the CPU.
 
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changequote(,)dnl
 
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            case "$host_cpu" in
 
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              alpha* | i[34567]86 | x86_64 | m68k | s390*)
 
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                gt_cv_int_divbyzero_sigfpe="guessing yes";;
 
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              *)
 
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                gt_cv_int_divbyzero_sigfpe="guessing no";;
 
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            esac
 
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changequote([,])dnl
 
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          ])
 
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      fi
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    ])
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  case "$gt_cv_int_divbyzero_sigfpe" in
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    *yes) value=1;;