-# wcwidth.m4 serial 17
-dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
+# wcwidth.m4 serial 23
+dnl Copyright (C) 2006-2014 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_CHECK_HEADERS_ONCE([wchar.h])
AC_CHECK_FUNCS_ONCE([wcwidth])
- AC_CHECK_DECLS([wcwidth], [], [], [
+ AC_CHECK_DECLS([wcwidth], [], [], [[
/* AIX 3.2.5 declares wcwidth in <string.h>. */
#include <string.h>
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
#include <stdio.h>
#include <time.h>
#include <wchar.h>
-])
+]])
if test $ac_cv_have_decl_wcwidth != yes; then
HAVE_DECL_WCWIDTH=0
fi
if test $ac_cv_func_wcwidth = yes; then
- dnl On MacOS X 10.3, wcwidth(0x0301) (COMBINING ACUTE ACCENT) returns 1.
+ HAVE_WCWIDTH=1
+ dnl On Mac OS X 10.3, wcwidth(0x0301) (COMBINING ACUTE ACCENT) returns 1.
+ dnl On OpenBSD 5.0, wcwidth(0x05B0) (HEBREW POINT SHEVA) returns 1.
dnl On OSF/1 5.1, wcwidth(0x200B) (ZERO WIDTH SPACE) returns 1.
dnl This leads to bugs in 'ls' (coreutils).
AC_CACHE_CHECK([whether wcwidth works reasonably in UTF-8 locales],
#endif
int main ()
{
+ int result = 0;
if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL)
- if (wcwidth (0x0301) > 0 || wcwidth (0x200B) > 0)
- return 1;
- return 0;
+ {
+ if (wcwidth (0x0301) > 0)
+ result |= 1;
+ if (wcwidth (0x05B0) > 0)
+ result |= 2;
+ if (wcwidth (0x200B) > 0)
+ result |= 4;
+ }
+ return result;
}]])],
[gl_cv_func_wcwidth_works=yes],
[gl_cv_func_wcwidth_works=no],
*yes) ;;
*no) REPLACE_WCWIDTH=1 ;;
esac
- fi
- if test $ac_cv_func_wcwidth != yes || test $REPLACE_WCWIDTH = 1; then
- AC_LIBOBJ([wcwidth])
- fi
- if test $ac_cv_func_wcwidth != yes || test $REPLACE_WCWIDTH = 1 \
- || test $HAVE_DECL_WCWIDTH = 0; then
- gl_REPLACE_WCHAR_H
+ else
+ HAVE_WCWIDTH=0
fi
dnl We don't substitute HAVE_WCWIDTH. We assume that if the system does not
dnl have the wcwidth function, then it does not declare it.