kc3-lang/gnulib/m4/wcsnrtombs.m4

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• Hash : facb752a
  Author :
  Date : 2023-01-22T12:41:14
  

  Resolve conflicts for functions introduced in Android API level 21.
  
  * m4/fts.m4 (gl_FUNC_FTS_CORE): Use rpl_* symbols also when the system
  will have fts_open in a future version.
  * m4/iswblank.m4 (gl_FUNC_ISWBLANK): Conditionally set REPLACE_ISWBLANK.
  * m4/mbtowc.m4 (gl_FUNC_MBTOWC): Conditionally set REPLACE_MBTOWC.
  * m4/vdprintf.m4 (gl_REPLACE_VDPRINTF): Conditionally set
  REPLACE_VDPRINTF.
  * m4/wcsnrtombs.m4 (gl_FUNC_WCSNRTOMBS): Conditionally set
  REPLACE_WCSNRTOMBS.
  

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• m4/wcsnrtombs.m4

• # wcsnrtombs.m4 serial 9
  dnl Copyright (C) 2008-2023 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_DEFUN([gl_FUNC_WCSNRTOMBS],
  [
    AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
  
    AC_REQUIRE([AC_TYPE_MBSTATE_T])
    gl_MBSTATE_T_BROKEN
  
    gl_CHECK_FUNCS_ANDROID([wcsnrtombs], [[#include <wchar.h>]])
    if test $ac_cv_func_wcsnrtombs = no; then
      HAVE_WCSNRTOMBS=0
      case "$gl_cv_onwards_func_wcsnrtombs" in
        future*) REPLACE_WCSNRTOMBS=1 ;;
      esac
    else
      if test $REPLACE_MBSTATE_T = 1; then
        REPLACE_WCSNRTOMBS=1
      else
        gl_WCSNRTOMBS_WORKS_IN_TRADITIONAL_LOCALE
        case "$gl_cv_func_wcsnrtombs_works_in_traditional_locale" in
          *yes) ;;
          *) REPLACE_WCSNRTOMBS=1 ;;
        esac
  
      fi
    fi
  ])
  
  # Prerequisites of lib/wcsnrtombs.c.
  AC_DEFUN([gl_PREREQ_WCSNRTOMBS], [
    :
  ])
  
  dnl Test whether wcsnrtombs works in an ISO-8859-1 locale.
  dnl Result is gl_cv_func_wcsnrtombs_works_in_traditional_locale.
  
  AC_DEFUN([gl_WCSNRTOMBS_WORKS_IN_TRADITIONAL_LOCALE],
  [
    AC_REQUIRE([AC_PROG_CC])
    AC_REQUIRE([gt_LOCALE_FR])
    AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
    AC_CACHE_CHECK([whether wcsnrtombs works in a traditional locale],
      [gl_cv_func_wcsnrtombs_works_in_traditional_locale],
      [
        dnl Initial guess, used when cross-compiling or when no suitable locale
        dnl is present.
  changequote(,)dnl
        case "$host_os" in
                    # Guess no on Solaris.
          solaris*) gl_cv_func_wcsnrtombs_works_in_traditional_locale="guessing no" ;;
                    # Guess yes otherwise.
          *)        gl_cv_func_wcsnrtombs_works_in_traditional_locale="guessing yes" ;;
        esac
  changequote([,])dnl
        if test $LOCALE_FR != none; then
          AC_RUN_IFELSE(
            [AC_LANG_SOURCE([[
  #include <locale.h>
  #include <stdlib.h>
  #include <string.h>
  #include <wchar.h>
  int main ()
  {
    /* This fails on Solaris 11.4.  */
    if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
      {
        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
        const char original[] = "B\374\337er"; /* "Büßer" */
        wchar_t input[10];
        size_t ret;
        const wchar_t *src;
  
        #define BUFSIZE 20
        char buf[BUFSIZE];
        memset (buf, '_', BUFSIZE);
  
        ret = mbstowcs (input, original, 10);
        if (!(ret == 5))
          return 1;
  
        src = input;
        ret = wcsnrtombs (buf, &src, 6, 2, NULL);
        if (!(ret == 2))
          return 2;
        if (!(src == input + 2))
          return 3;
        if (!(memcmp (buf, original, ret) == 0))
          return 4;
      }
    return 0;
  }]])],
            [gl_cv_func_wcsnrtombs_works_in_traditional_locale=yes],
            [gl_cv_func_wcsnrtombs_works_in_traditional_locale=no],
            [:])
        fi
      ])
  ])
  

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