pmt: revert 7f8090b

jni/parted/libgnulib/lib/btowc.c

@@ -1,47 +0,0 @@
-/* Convert unibyte character to wide character.
-   Copyright (C) 2008, 2010-2024 Free Software Foundation, Inc.
-   Written by Bruno Haible <bruno@clisp.org>, 2008.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <wchar.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-wint_t
-btowc (int c)
-{
-  if (c != EOF)
-    {
-      char buf[1];
-      wchar_t wc;
-
-      buf[0] = c;
-#if HAVE_MBRTOWC
-      mbstate_t state;
-      mbszero (&state);
-      size_t ret = mbrtowc (&wc, buf, 1, &state);
-      if (!(ret == (size_t)(-1) || ret == (size_t)(-2)))
-#else
-      if (mbtowc (&wc, buf, 1) >= 0)
-#endif
-        return wc;
-    }
-  return WEOF;
-}