# mbswidth.m4 serial 14 dnl Copyright (C) 2000-2002, 2004, 2006, 2007 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. dnl autoconf tests required for use of mbswidth.c dnl From Bruno Haible. AC_DEFUN([gl_MBSWIDTH], [ AC_CHECK_HEADERS_ONCE([wchar.h]) AC_CHECK_FUNCS_ONCE([isascii mbsinit]) gl_FUNC_MBRTOWC dnl UnixWare 7.1.1 has a declaration of a function mbswidth() dnl that clashes with ours. AC_CACHE_CHECK([whether mbswidth is declared in ], ac_cv_have_decl_mbswidth, [AC_TRY_COMPILE([ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include ], [ char *p = (char *) mbswidth; return !p; ], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)]) if test $ac_cv_have_decl_mbswidth = yes; then ac_val=1 else ac_val=0 fi AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val, [Define to 1 if you have a declaration of mbswidth() in , and to 0 otherwise.]) AC_TYPE_MBSTATE_T ])