1 # mbsrtowcs.m4 serial 3
2 dnl Copyright (C) 2008 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_MBSRTOWCS],
9 AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
11 AC_REQUIRE([AC_TYPE_MBSTATE_T])
13 if test $REPLACE_MBSTATE_T = 1; then
16 AC_CHECK_FUNCS_ONCE([mbsrtowcs])
17 if test $ac_cv_func_mbsrtowcs = no; then
20 if test $HAVE_MBSRTOWCS != 0 && test $REPLACE_MBSRTOWCS != 1; then
22 case "$gl_cv_func_mbsrtowcs_works" in
24 *) REPLACE_MBSRTOWCS=1 ;;
27 if test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1; then
29 AC_LIBOBJ([mbsrtowcs])
34 dnl Test whether mbsrtowcs works.
35 dnl Result is gl_cv_func_mbsrtowcs_works.
37 AC_DEFUN([gl_MBSRTOWCS_WORKS],
39 AC_REQUIRE([AC_PROG_CC])
40 AC_REQUIRE([gt_LOCALE_FR_UTF8])
41 AC_REQUIRE([gt_LOCALE_JA])
42 AC_REQUIRE([gt_LOCALE_ZH_CN])
43 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
44 AC_CACHE_CHECK([whether mbsrtowcs works],
45 [gl_cv_func_mbsrtowcs_works],
47 dnl Initial guess, used when cross-compiling or when no suitable locale
51 # Guess no on HP-UX and Solaris.
52 hpux* | solaris*) gl_cv_func_mbsrtowcs_works="guessing no" ;;
53 # Guess yes otherwise.
54 *) gl_cv_func_mbsrtowcs_works="guessing yes" ;;
57 if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
64 /* Test whether the function works when started with a conversion state
65 in non-initial state. This fails on HP-UX 11.11 and Solaris 10. */
66 if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
68 const char input[] = "B\303\274\303\237er";
71 memset (&state, '\0', sizeof (mbstate_t));
72 if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2))
73 if (!mbsinit (&state))
75 const char *src = input + 2;
76 if (mbsrtowcs (NULL, &src, 10, &state) != 4)
80 if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
82 const char input[] = "<\306\374\313\334\270\354>";
85 memset (&state, '\0', sizeof (mbstate_t));
86 if (mbrtowc (NULL, input + 3, 1, &state) == (size_t)(-2))
87 if (!mbsinit (&state))
89 const char *src = input + 4;
90 if (mbsrtowcs (NULL, &src, 10, &state) != 3)
94 if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
96 const char input[] = "B\250\271\201\060\211\070er";
99 memset (&state, '\0', sizeof (mbstate_t));
100 if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2))
101 if (!mbsinit (&state))
103 const char *src = input + 2;
104 if (mbsrtowcs (NULL, &src, 10, &state) != 4)
110 [gl_cv_func_mbsrtowcs_works=yes],
111 [gl_cv_func_mbsrtowcs_works=no],
117 # Prerequisites of lib/mbsrtowcs.c.
118 AC_DEFUN([gl_PREREQ_MBSRTOWCS], [