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diff --git a/jni/iconv/lib/gb12345.h b/jni/iconv/lib/gb12345.h
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+++ b/jni/iconv/lib/gb12345.h
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+/*
+ * Copyright (C) 1999-2001 Free Software Foundation, Inc.
+ * This file is part of the GNU LIBICONV Library.
+ *
+ * The GNU LIBICONV Library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * The GNU LIBICONV Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
+ * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
+ * Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/*
+ * GB/T 12345-1990
+ */
+
+/*
+ * GB/T 12345-1990 is a traditional chinese counterpart of GB 2312-1986.
+ * According to the unicode.org tables:
+ * 2146 characters have been changed to their traditional counterpart,
+ * 103 characters have been added, no characters have been removed.
+ * Therefore we use an auxiliary table, which contains only the changes.
+ */
+
+#include "gb12345ext.h"
+
+static int
+gb12345_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+  int ret;
+
+  /* The gb12345ext table overrides some entries in the gb2312 table. */
+  /* Try the GB12345 extensions -> Unicode table. */
+  ret = gb12345ext_mbtowc(conv,pwc,s,n);
+  if (ret != RET_ILSEQ)
+    return ret;
+  /* Try the GB2312 -> Unicode table. */
+  ret = gb2312_mbtowc(conv,pwc,s,n);
+  return ret;
+}
+
+static int
+gb12345_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
+{
+  int ret;
+
+  /* The gb12345ext table overrides some entries in the gb2312 table. */
+  /* Try the Unicode -> GB12345 extensions table. */
+  ret = gb12345ext_wctomb(conv,r,wc,n);
+  if (ret != RET_ILUNI)
+    return ret;
+  /* Try the Unicode -> GB2312 table, and check that the resulting GB2312
+     byte sequence is not overridden by the GB12345 extensions table. */
+  ret = gb2312_wctomb(conv,r,wc,n);
+  if (ret == 2 && gb12345ext_mbtowc(conv,&wc,r,2) == 2)
+    return RET_ILUNI;
+  else
+    return ret;
+}