Imported Upstream version 1.4.19

[platform/upstream/m4.git] / m4 / wctob.m4

diff --git a/m4/wctob.m4 b/m4/wctob.m4
index bdb5299..159b609 100644 (file)
--- a/m4/wctob.m4
+++ b/m4/wctob.m4
@@ -1,5 +1,5 @@
-# wctob.m4 serial 10
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+# wctob.m4 serial 13
+dnl Copyright (C) 2008-2021 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.
@@ -17,7 +17,7 @@ AC_DEFUN([gl_FUNC_WCTOB],
 
     dnl Solaris 9 has the wctob() function but it does not work.
     dnl Cygwin 1.7.2 has the wctob() function but it clobbers caller-owned
-    dnl registers, see <http://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
+    dnl registers, see <https://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
     AC_REQUIRE([AC_PROG_CC])
     AC_REQUIRE([gt_LOCALE_FR])
     AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
@@ -31,6 +31,9 @@ changequote(,)dnl
             # Guess no on Solaris <= 9 and Cygwin.
           solaris2.[1-9] | solaris2.[1-9].* | cygwin*)
             gl_cv_func_wctob_works="guessing no" ;;
+            # Guess no on native Windows.
+          mingw*)
+            gl_cv_func_wctob_works="guessing no" ;;
             # Guess yes otherwise.
           *) gl_cv_func_wctob_works="guessing yes" ;;
         esac
@@ -40,13 +43,6 @@ changequote([,])dnl
             AC_RUN_IFELSE(
               [AC_LANG_SOURCE([[
 #include <locale.h>
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-   included before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
 #include <wchar.h>
 
 register long global __asm__ ("%ebx");
@@ -71,14 +67,7 @@ int main ()
           AC_RUN_IFELSE(
             [AC_LANG_SOURCE([[
 #include <locale.h>
-#include <string.h>
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-   included before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
+#include <stdlib.h>
 #include <wchar.h>
 int main ()
 {
@@ -105,15 +94,8 @@ int main ()
 
       dnl IRIX 6.5 has the wctob() function but does not declare it.
       AC_CHECK_DECLS([wctob], [], [], [[
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
-   before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
-#include <wchar.h>
-]])
+        #include <wchar.h>
+      ]])
       if test $ac_cv_have_decl_wctob != yes; then
         HAVE_DECL_WCTOB=0
       fi