-# wcrtomb.m4 serial 6
-dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
+# wcrtomb.m4 serial 11
+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([wcrtomb])
if test $ac_cv_func_wcrtomb = no; then
HAVE_WCRTOMB=0
+ AC_CHECK_DECLS([wcrtomb],,, [[
+/* 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_wcrtomb = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares wcrtomb() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_WCRTOMB=1
+ fi
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_WCRTOMB=1
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <locale.h>
-#include <stdio.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
+ int result = 0;
if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
{
if (wcrtomb (NULL, 0, NULL) != 1)
- return 1;
+ result |= 1;
}
if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
{
if (wcrtomb (NULL, 0, NULL) != 1)
- return 1;
+ result |= 2;
}
if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
{
if (wcrtomb (NULL, 0, NULL) != 1)
- return 1;
+ result |= 4;
}
if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
{
if (wcrtomb (NULL, 0, NULL) != 1)
- return 1;
+ result |= 8;
}
- return 0;
+ return result;
}]])],
[gl_cv_func_wcrtomb_retval=yes],
[gl_cv_func_wcrtomb_retval=no],
esac
fi
fi
- if test $HAVE_WCRTOMB = 0 || test $REPLACE_WCRTOMB = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([wcrtomb])
- gl_PREREQ_WCRTOMB
- fi
])
# Prerequisites of lib/wcrtomb.c.