X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fintdiv0.m4;h=6d89aebed49cb1c8de2564c2de482bc6b0479727;hb=a0dccde75e6a3b9c930e3577fae7a5bf9351ec09;hp=b8865bac204a3f6a46e72276e904a6984cf7df89;hpb=47e3f525db2f6c47a0929661d33242f90323d888;p=gnulib.git

diff --git a/m4/intdiv0.m4 b/m4/intdiv0.m4
index b8865bac2..6d89aebed 100644
--- a/m4/intdiv0.m4
+++ b/m4/intdiv0.m4
@@ -1,5 +1,5 @@
-# intdiv0.m4 serial 2 (gettext-0.16.2)
-dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+# intdiv0.m4 serial 5 (gettext-0.18.2)
+dnl Copyright (C) 2002, 2007-2008, 2010-2012 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.
@@ -14,7 +14,23 @@ 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 "$host_os" in
+        macos* | darwin[6-9]* | darwin[1-9][0-9]*)
+          # On MacOS X 10.2 or newer, just assume the same as when cross-
+          # compiling. If we were to perform the real test, 1 Crash Report
+          # dialog window would pop up.
+          case "$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>
 
@@ -44,25 +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.
+]])],
+          [gt_cv_int_divbyzero_sigfpe=yes],
+          [gt_cv_int_divbyzero_sigfpe=no],
+          [
+            # Guess based on the CPU.
 changequote(,)dnl
-          case "$host_cpu" in
-            alpha* | i[34567]86 | m68k | s390*)
-              gt_cv_int_divbyzero_sigfpe="guessing yes";;
-            *)
-              gt_cv_int_divbyzero_sigfpe="guessing no";;
-          esac
+            case "$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.])
 ])