X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fintdiv0.m4;h=74d0e80d2541472588f995073aa26503d3796802;hb=e7086a9a301ffcfef17edbcba9e7c0312c33f7a8;hp=55dddcf1c24c26a63f303c48ac6ff33329404f99;hpb=35b6e3c3bdaf7541e7a03d985c80c464e49d2182;p=gnulib.git

diff --git a/m4/intdiv0.m4 b/m4/intdiv0.m4
index 55dddcf1c..74d0e80d2 100644
--- a/m4/intdiv0.m4
+++ b/m4/intdiv0.m4
@@ -1,10 +1,8 @@
-# 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 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.
+# intdiv0.m4 serial 6 (gettext-0.18.2)
+dnl Copyright (C) 2002, 2007-2008, 2010-2013 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.
 
@@ -16,16 +14,28 @@ AC_DEFUN([gt_INTDIV0],
   AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
     gt_cv_int_divbyzero_sigfpe,
     [
-      AC_TRY_RUN([
+      gt_cv_int_divbyzero_sigfpe=
+changequote(,)dnl
+      case "$host_os" in
+        macos* | darwin[6-9]* | darwin[1-9][0-9]*)
+          # On Mac OS X 10.2 or newer, just assume the same as when cross-
+          # compiling. If we were to perform the real test, 1 Crash Report
+          # dialog window would pop up.
+          case "$host_cpu" in
+            i[34567]86 | x86_64)
+              gt_cv_int_divbyzero_sigfpe="guessing yes" ;;
+          esac
+          ;;
+      esac
+changequote([,])dnl
+      if test -z "$gt_cv_int_divbyzero_sigfpe"; then
+        AC_RUN_IFELSE(
+          [AC_LANG_SOURCE([[
 #include <stdlib.h>
 #include <signal.h>
 
 static void
-#ifdef __cplusplus
 sigfpe_handler (int sig)
-#else
-sigfpe_handler (sig) int sig;
-#endif
 {
   /* Exit with code 0 if SIGFPE, with code 1 if any other signal.  */
   exit (sig != SIGFPE);
@@ -50,23 +60,28 @@ int main ()
 
   z = x / y;
   nan = y / y;
-  exit (1);
+  exit (2);
 }
-], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
-        [
-          # Guess based on the CPU.
-          case "$host_cpu" in
-            alpha* | i[34567]86 | m68k | s390*)
-              gt_cv_int_divbyzero_sigfpe="guessing yes";;
-            *)
-              gt_cv_int_divbyzero_sigfpe="guessing no";;
-          esac
-        ])
+]])],
+          [gt_cv_int_divbyzero_sigfpe=yes],
+          [gt_cv_int_divbyzero_sigfpe=no],
+          [
+            # Guess based on the CPU.
+changequote(,)dnl
+            case "$host_cpu" in
+              alpha* | i[34567]86 | x86_64 | m68k | s390*)
+                gt_cv_int_divbyzero_sigfpe="guessing yes";;
+              *)
+                gt_cv_int_divbyzero_sigfpe="guessing no";;
+            esac
+changequote([,])dnl
+          ])
+      fi
     ])
   case "$gt_cv_int_divbyzero_sigfpe" in
     *yes) value=1;;
     *) value=0;;
   esac
-  AC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value,
+  AC_DEFINE_UNQUOTED([INTDIV0_RAISES_SIGFPE], [$value],
     [Define if integer division by zero raises signal SIGFPE.])
 ])