1 files changed, 6 insertions, 3 deletions

diff --git a/m4/intdiv0.m4 b/m4/intdiv0.m4
index 744b99ea..c1034c76 100644
--- a/m4/intdiv0.m4
+++ b/m4/intdiv0.m4
@@ -1,5 +1,5 @@
-# intdiv0.m4 serial 6 (gettext-0.18.2)
-dnl Copyright (C) 2002, 2007-2008, 2010-2016 Free Software Foundation, Inc.
+# intdiv0.m4 serial 7 (gettext-0.20.2)
+dnl Copyright (C) 2002, 2007-2008, 2010-2020 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.
@@ -31,8 +31,11 @@ changequote([,])dnl
       if test -z "$gt_cv_int_divbyzero_sigfpe"; then
         AC_RUN_IFELSE(
           [AC_LANG_SOURCE([[
-#include <stdlib.h>
+#include <stdlib.h> /* for exit() */
 #include <signal.h>
+#if !(defined _WIN32 && !defined __CYGWIN__)
+#include <unistd.h> /* for _exit() */
+#endif
 
 static void
 sigfpe_handler (int sig)