m4/mbsinit.m4

   1 # mbsinit.m4 serial 8
   2 dnl Copyright (C) 2008, 2010-2014 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.
   6
   7 AC_DEFUN([gl_FUNC_MBSINIT],
   8 [
   9   AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
  10   AC_REQUIRE([AC_CANONICAL_HOST])
  11
  12   AC_REQUIRE([AC_TYPE_MBSTATE_T])
  13   gl_MBSTATE_T_BROKEN
  14
  15   AC_CHECK_FUNCS_ONCE([mbsinit])
  16   if test $ac_cv_func_mbsinit = no; then
  17     HAVE_MBSINIT=0
  18     AC_CHECK_DECLS([mbsinit],,, [[
  19 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
  20    <wchar.h>.
  21    BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
  22    included before <wchar.h>.  */
  23 #include <stddef.h>
  24 #include <stdio.h>
  25 #include <time.h>
  26 #include <wchar.h>
  27 ]])
  28     if test $ac_cv_have_decl_mbsinit = yes; then
  29       dnl On Minix 3.1.8, the system's <wchar.h> declares mbsinit() although
  30       dnl it does not have the function. Avoid a collision with gnulib's
  31       dnl replacement.
  32       REPLACE_MBSINIT=1
  33     fi
  34   else
  35     if test $REPLACE_MBSTATE_T = 1; then
  36       REPLACE_MBSINIT=1
  37     else
  38       dnl On mingw, mbsinit() always returns 1, which is inappropriate for
  39       dnl states produced by mbrtowc() for an incomplete multibyte character
  40       dnl in multibyte locales.
  41       case "$host_os" in
  42         mingw*) REPLACE_MBSINIT=1 ;;
  43       esac
  44     fi
  45   fi
  46 ])
  47
  48 # Prerequisites of lib/mbsinit.c.
  49 AC_DEFUN([gl_PREREQ_MBSINIT], [
  50   :
  51 ])