diff options
Diffstat (limited to 'm4/wcrtomb.m4')
| -rw-r--r-- | m4/wcrtomb.m4 | 61 |
1 files changed, 26 insertions, 35 deletions
diff --git a/m4/wcrtomb.m4 b/m4/wcrtomb.m4 index fec22f3..71c48f1 100644 --- a/m4/wcrtomb.m4 +++ b/m4/wcrtomb.m4 @@ -1,5 +1,5 @@ -# wcrtomb.m4 serial 14 -dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. +# wcrtomb.m4 serial 17 +dnl Copyright (C) 2008-2020 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. @@ -15,15 +15,8 @@ AC_DEFUN([gl_FUNC_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> -]]) + #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 @@ -31,9 +24,11 @@ AC_DEFUN([gl_FUNC_WCRTOMB], REPLACE_WCRTOMB=1 fi else - if test $REPLACE_MBSTATE_T = 1; then - REPLACE_WCRTOMB=1 - fi + dnl We don't actually need to override wcrtomb when redefining the semantics + dnl of the mbstate_t type. Tested on 32-bit AIX. + dnl if test $REPLACE_MBSTATE_T = 1; then + dnl REPLACE_WCRTOMB=1 + dnl fi if test $REPLACE_WCRTOMB = 0; then dnl On Android 4.3, wcrtomb produces wrong characters in the C locale. dnl On AIX 4.3, OSF/1 5.1 and Solaris <= 11.3, wcrtomb (NULL, 0, NULL) @@ -50,12 +45,6 @@ AC_DEFUN([gl_FUNC_WCRTOMB], [AC_LANG_SOURCE([[ #include <string.h> #include <stdlib.h> -/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before - <wchar.h>. - BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be - included before <wchar.h>. */ -#include <stddef.h> -#include <stdio.h> #include <wchar.h> int main () { @@ -79,7 +68,9 @@ int main () ]) case "$gl_cv_func_wcrtomb_works" in *yes) ;; - *) REPLACE_WCRTOMB=1 ;; + *) AC_DEFINE([WCRTOMB_C_LOCALE_BUG], [1], + [Define if the wcrtomb function does not work in the C locale.]) + REPLACE_WCRTOMB=1 ;; esac fi if test $REPLACE_WCRTOMB = 0; then @@ -90,12 +81,10 @@ int main () dnl is present. changequote(,)dnl case "$host_os" in - # Guess no on AIX 4, OSF/1 and Solaris. - aix4* | osf* | solaris*) gl_cv_func_wcrtomb_retval="guessing no" ;; - # Guess yes on native Windows. - mingw*) gl_cv_func_wcrtomb_retval="guessing yes" ;; - # Guess yes otherwise. - *) gl_cv_func_wcrtomb_retval="guessing yes" ;; + # Guess no on AIX 4, OSF/1, Solaris, native Windows. + aix4* | osf* | solaris* | mingw*) gl_cv_func_wcrtomb_retval="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_wcrtomb_retval="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then @@ -103,14 +92,8 @@ changequote([,])dnl [AC_LANG_SOURCE([[ #include <locale.h> #include <string.h> -/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before - <wchar.h>. - BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be - included before <wchar.h>. */ -#include <stddef.h> -#include <stdio.h> -#include <time.h> #include <wchar.h> +#include <stdlib.h> int main () { int result = 0; @@ -123,6 +106,12 @@ int main () { if (wcrtomb (NULL, 0, NULL) != 1) result |= 2; + { + wchar_t wc = (wchar_t) 0xBADFACE; + if (mbtowc (&wc, "\303\274", 2) == 2) + if (wcrtomb (NULL, wc, NULL) != 1) + result |= 2; + } } if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) { @@ -143,7 +132,9 @@ int main () ]) case "$gl_cv_func_wcrtomb_retval" in *yes) ;; - *) REPLACE_WCRTOMB=1 ;; + *) AC_DEFINE([WCRTOMB_RETVAL_BUG], [1], + [Define if the wcrtomb function has an incorrect return value.]) + REPLACE_WCRTOMB=1 ;; esac fi fi |