Ensure all prerequisites of <wchar.h> are included.

* m4/btowc.m4 (gl_FUNC_BTOWC): Include <stddef.h>, <stdio.h>, <time.h>
before <wchar.h>.
* m4/mbrlen.m4 (gl_MBRLEN_INCOMPLETE_STATE, gl_MBRLEN_RETVAL,
gl_MBRLEN_NUL_RETVAL): Likewise.
* m4/mbrtowc.m4 (gl_MBRTOWC_INCOMPLETE_STATE, gl_MBRTOWC_SANITYCHECK,
gl_MBRTOWC_NULL_ARG, gl_MBRTOWC_RETVAL, gl_MBRTOWC_NUL_RETVAL,
AC_FUNC_MBRTOWC): Likewise.
* m4/mbsrtowcs.m4 (gl_MBSRTOWCS_WORKS): Likewise.
* m4/mbstate_t.m4 (AC_TYPE_MBSTATE_T): Likewise.
* m4/wcrtomb.m4 (gl_FUNC_WCRTOMB): Likewise.
* m4/wcsrtombs.m4 (gl_WCSRTOMBS_TERMINATION, gl_WCSRTOMBS_NULL):
Likewise.
* m4/wctob.m4 (gl_FUNC_WCTOB): Likewise.
* m4/wchar_h.m4 (gl_WCHAR_H_INLINE_OK): Likewise.
(gl_WCHAR_H): Improve comments.
* m4/wctype_h.m4 (gl_WCTYPE_H): Likewise.

diff --git a/ChangeLog b/ChangeLog
index fbf72fa492c3f3ab090c00eb70e62636ccf03d2c..7620cba4b18be3d4e63ff1b75de9ab0b7e2d097c 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,23 @@
+2010-12-25  Bruno Haible  <bruno@clisp.org>
+
+       Ensure all prerequisites of <wchar.h> are included.
+       * m4/btowc.m4 (gl_FUNC_BTOWC): Include <stddef.h>, <stdio.h>, <time.h>
+       before <wchar.h>.
+       * m4/mbrlen.m4 (gl_MBRLEN_INCOMPLETE_STATE, gl_MBRLEN_RETVAL,
+       gl_MBRLEN_NUL_RETVAL): Likewise.
+       * m4/mbrtowc.m4 (gl_MBRTOWC_INCOMPLETE_STATE, gl_MBRTOWC_SANITYCHECK,
+       gl_MBRTOWC_NULL_ARG, gl_MBRTOWC_RETVAL, gl_MBRTOWC_NUL_RETVAL,
+       AC_FUNC_MBRTOWC): Likewise.
+       * m4/mbsrtowcs.m4 (gl_MBSRTOWCS_WORKS): Likewise.
+       * m4/mbstate_t.m4 (AC_TYPE_MBSTATE_T): Likewise.
+       * m4/wcrtomb.m4 (gl_FUNC_WCRTOMB): Likewise.
+       * m4/wcsrtombs.m4 (gl_WCSRTOMBS_TERMINATION, gl_WCSRTOMBS_NULL):
+       Likewise.
+       * m4/wctob.m4 (gl_FUNC_WCTOB): Likewise.
+       * m4/wchar_h.m4 (gl_WCHAR_H_INLINE_OK): Likewise.
+       (gl_WCHAR_H): Improve comments.
+       * m4/wctype_h.m4 (gl_WCTYPE_H): Likewise.
+
 2010-12-25  Bruno Haible  <bruno@clisp.org>
 
        strtok_r: Fix C syntax error in autoconf macro.

diff --git a/m4/btowc.m4 b/m4/btowc.m4
index b16b1f020a94bef677777b9de347853952144cb8..cda119d935ff5f9571fb652750e35dcbf1a89b93 100644 (file)
--- a/m4/btowc.m4
+++ b/m4/btowc.m4
@@ -1,4 +1,4 @@
-# btowc.m4 serial 7
+# btowc.m4 serial 8
 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -28,8 +28,14 @@ AC_DEFUN([gl_FUNC_BTOWC],
       [
         AC_RUN_IFELSE(
           [AC_LANG_SOURCE([[
-#include <stdio.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 <wchar.h>
 int main ()
 {
@@ -69,8 +75,14 @@ changequote([,])dnl
           AC_RUN_IFELSE(
             [AC_LANG_SOURCE([[
 #include <locale.h>
-#include <stdio.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 <wchar.h>
 int main ()
 {

diff --git a/m4/mbrlen.m4 b/m4/mbrlen.m4
index c08cb851139e18c55a8dcb54a9c1d6282e8c35be..fd77e5840e80d8517313c4a5f09f7945b58bf264 100644 (file)
--- a/m4/mbrlen.m4
+++ b/m4/mbrlen.m4
@@ -1,4 +1,4 @@
-# mbrlen.m4 serial 4
+# mbrlen.m4 serial 5
 dnl Copyright (C) 2008, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -56,6 +56,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -107,6 +114,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -174,6 +188,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {

diff --git a/m4/mbrtowc.m4 b/m4/mbrtowc.m4
index 1de9aab325ced74822ae4ceff042540ea0e87cb2..bcd52061b0896132f5911a1c2be4ed1f9c40724b 100644 (file)
--- a/m4/mbrtowc.m4
+++ b/m4/mbrtowc.m4
@@ -1,4 +1,4 @@
-# mbrtowc.m4 serial 19
+# mbrtowc.m4 serial 20
 dnl Copyright (C) 2001-2002, 2004-2005, 2008-2010 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
@@ -112,6 +112,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -162,6 +169,13 @@ changequote([,])dnl
 #include <locale.h>
 #include <stdlib.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 <wchar.h>
 int main ()
 {
@@ -214,6 +228,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -268,6 +289,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -337,6 +365,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {
@@ -367,10 +402,8 @@ AC_DEFUN([gl_PREREQ_MBRTOWC], [
 
 dnl From Paul Eggert
 
-dnl This override of an autoconf macro can be removed when autoconf 2.60 or
-dnl newer can be assumed everywhere.
+dnl This is an override of an autoconf macro.
 
-m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.60]),[-1],[
 AC_DEFUN([AC_FUNC_MBRTOWC],
 [
   dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
@@ -378,7 +411,14 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
     gl_cv_func_mbrtowc,
     [AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
-            [[#include <wchar.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>]],
             [[wchar_t wc;
               char const s[] = "";
               size_t n = 1;
@@ -391,4 +431,3 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
       [Define to 1 if mbrtowc and mbstate_t are properly declared.])
   fi
 ])
-])

diff --git a/m4/mbsrtowcs.m4 b/m4/mbsrtowcs.m4
index ffb02877c495a09726c2ef0c37c3f05ed09279c7..9407a17fb8056cafa5d6b3079d5124d08146fcd5 100644 (file)
--- a/m4/mbsrtowcs.m4
+++ b/m4/mbsrtowcs.m4
@@ -1,4 +1,4 @@
-# mbsrtowcs.m4 serial 8
+# mbsrtowcs.m4 serial 9
 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -61,6 +61,13 @@ changequote([,])dnl
           [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 <wchar.h>
 int main ()
 {

diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
index 3e2df29f8aa13b71eb4038480ce3c85d25fdbb3c..3304c372c5479ef0d1cad78032380a1c5ee6f369 100644 (file)
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@@ -1,4 +1,4 @@
-# mbstate_t.m4 serial 12
+# mbstate_t.m4 serial 13
 dnl Copyright (C) 2000-2002, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -20,7 +20,14 @@ AC_DEFUN([AC_TYPE_MBSTATE_T],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [AC_INCLUDES_DEFAULT[
-#           include <wchar.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>]],
            [[mbstate_t x; return sizeof x;]])],
         [ac_cv_type_mbstate_t=yes],
         [ac_cv_type_mbstate_t=no])])

diff --git a/m4/wchar_h.m4 b/m4/wchar_h.m4
index 8c8fad96df6c5d0fbddb2bd655237b9bb5b8d65d..8d4e53ac5234a5f8e427334bead81308ee962190 100644 (file)
--- a/m4/wchar_h.m4
+++ b/m4/wchar_h.m4
@@ -7,7 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 
 dnl Written by Eric Blake.
 
-# wchar_h.m4 serial 35
+# wchar_h.m4 serial 36
 
 AC_DEFUN([gl_WCHAR_H],
 [
@@ -39,7 +39,10 @@ AC_DEFUN([gl_WCHAR_H],
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[
-/* Some systems require additional headers.  */
+/* 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>.  */
 #if !(defined __GLIBC__ && !defined __UCLIBC__)
 # include <stddef.h>
 # include <stdio.h>
@@ -63,6 +66,13 @@ AC_DEFUN([gl_WCHAR_H_INLINE_OK],
     [gl_cv_header_wchar_h_correct_inline=yes
      AC_LANG_CONFTEST([
        AC_LANG_SOURCE([[#define wcstod renamed_wcstod
+/* 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>
 extern int zero (void);
 int main () { return zero(); }
@@ -71,6 +81,13 @@ int main () { return zero(); }
        mv conftest.$ac_objext conftest1.$ac_objext
        AC_LANG_CONFTEST([
          AC_LANG_SOURCE([[#define wcstod renamed_wcstod
+/* 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>
 int zero (void) { return 0; }
 ]])])

diff --git a/m4/wcrtomb.m4 b/m4/wcrtomb.m4
index 514aed63b37365a1c38adbd416def8231417b0c1..b8a3cf977febf71eb706d8df3e1d4e1f259c03df 100644 (file)
--- a/m4/wcrtomb.m4
+++ b/m4/wcrtomb.m4
@@ -1,4 +1,4 @@
-# wcrtomb.m4 serial 7
+# wcrtomb.m4 serial 8
 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -43,8 +43,14 @@ changequote([,])dnl
             AC_RUN_IFELSE(
               [AC_LANG_SOURCE([[
 #include <locale.h>
-#include <stdio.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 <wchar.h>
 int main ()
 {

diff --git a/m4/wcsrtombs.m4 b/m4/wcsrtombs.m4
index f340a0570d96e816e4dd105633e743d8f88f0d76..9a6bce97efe91f44d8b2e2af5649013b1690b448 100644 (file)
--- a/m4/wcsrtombs.m4
+++ b/m4/wcsrtombs.m4
@@ -1,4 +1,4 @@
-# wcsrtombs.m4 serial 6
+# wcsrtombs.m4 serial 7
 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -72,6 +72,13 @@ changequote([,])dnl
           [AC_LANG_SOURCE([[
 #include <locale.h>
 #include <stdlib.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>
 int main ()
 {
@@ -127,6 +134,13 @@ changequote([,])dnl
           [AC_LANG_SOURCE([[
 #include <locale.h>
 #include <stdlib.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>
 int main ()
 {

diff --git a/m4/wctob.m4 b/m4/wctob.m4
index 59e947a28c5b2e6b56f6502c76207662e7a55d66..357dcb4b65f09416f8e6d1048e9714c03ec06cca 100644 (file)
--- a/m4/wctob.m4
+++ b/m4/wctob.m4
@@ -1,4 +1,4 @@
-# wctob.m4 serial 6
+# wctob.m4 serial 7
 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -41,6 +41,13 @@ 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");
@@ -66,6 +73,13 @@ int main ()
             [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 <wchar.h>
 int main ()
 {

diff --git a/m4/wctype_h.m4 b/m4/wctype_h.m4
index edcf41f989d5fb2a70395e15df7a2182960c3362..e7885cbd8f5f57b822e3700fe87f0243a88e3020 100644 (file)
--- a/m4/wctype_h.m4
+++ b/m4/wctype_h.m4
@@ -1,4 +1,4 @@
-# wctype_h.m4 serial 9
+# wctype_h.m4 serial 10
 
 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
 
@@ -53,13 +53,19 @@ AC_DEFUN([gl_WCTYPE_H],
       dnl The other functions are likely broken in the same way.
       AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
         [
-          AC_RUN_IFELSE([AC_LANG_SOURCE([[
-                            #include <stddef.h>
-                            #include <stdio.h>
-                            #include <time.h>
-                            #include <wchar.h>
-                            #include <wctype.h>
-                            int main () { return iswprint ('x') == 0; }]])],
+          AC_RUN_IFELSE(
+            [AC_LANG_SOURCE([[
+               /* 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 <wctype.h>
+               int main () { return iswprint ('x') == 0; }
+            ]])],
             [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
             [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
                           #if __GNU_LIBRARY__ == 1