-# mbsrtowcs.m4 serial 7
-dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
+# mbsrtowcs.m4 serial 13
+dnl Copyright (C) 2008-2015 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.
AC_CHECK_FUNCS_ONCE([mbsrtowcs])
if test $ac_cv_func_mbsrtowcs = no; then
HAVE_MBSRTOWCS=0
+ AC_CHECK_DECLS([mbsrtowcs],,, [[
+/* 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>
+]])
+ if test $ac_cv_have_decl_mbsrtowcs = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares mbsrtowcs() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_MBSRTOWCS=1
+ fi
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_MBSRTOWCS=1
esac
fi
fi
- if test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([mbsrtowcs])
- AC_LIBOBJ([mbsrtowcs-state])
- gl_PREREQ_MBSRTOWCS
- fi
])
dnl Test whether mbsrtowcs works.
AC_DEFUN([gl_MBSRTOWCS_WORKS],
[
AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_FR])
AC_REQUIRE([gt_LOCALE_FR_UTF8])
AC_REQUIRE([gt_LOCALE_JA])
AC_REQUIRE([gt_LOCALE_ZH_CN])
dnl is present.
changequote(,)dnl
case "$host_os" in
- # Guess no on HP-UX and Solaris.
- hpux* | solaris*) gl_cv_func_mbsrtowcs_works="guessing no" ;;
- # Guess yes otherwise.
- *) gl_cv_func_mbsrtowcs_works="guessing yes" ;;
+ # Guess no on HP-UX, Solaris, mingw.
+ hpux* | solaris* | mingw*) gl_cv_func_mbsrtowcs_works="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbsrtowcs_works="guessing yes" ;;
esac
changequote([,])dnl
- if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
+ if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
+ int result = 0;
+ /* Test whether the function supports a NULL destination argument.
+ This fails on native Windows. */
+ if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
+ {
+ const char input[] = "\337er";
+ const char *src = input;
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbsrtowcs (NULL, &src, 1, &state) != 3
+ || src != input)
+ result |= 1;
+ }
/* Test whether the function works when started with a conversion state
in non-initial state. This fails on HP-UX 11.11 and Solaris 10. */
if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
{
const char *src = input + 2;
if (mbsrtowcs (NULL, &src, 10, &state) != 4)
- return 1;
+ result |= 2;
}
}
if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
{
const char *src = input + 4;
if (mbsrtowcs (NULL, &src, 10, &state) != 3)
- return 1;
+ result |= 4;
}
}
if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
{
const char *src = input + 2;
if (mbsrtowcs (NULL, &src, 10, &state) != 4)
- return 1;
+ result |= 8;
}
}
- return 0;
+ return result;
}]])],
[gl_cv_func_mbsrtowcs_works=yes],
[gl_cv_func_mbsrtowcs_works=no],