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diff --git a/src/3rdparty/harfbuzz-ng/src/hb-aat-ltag-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-aat-ltag-table.hh
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+/*
+ * Copyright © 2018  Ebrahim Byagowi
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef HB_AAT_LTAG_TABLE_HH
+#define HB_AAT_LTAG_TABLE_HH
+
+#include "hb-open-type.hh"
+
+/*
+ * ltag -- Language Tag
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6ltag.html
+ */
+#define HB_AAT_TAG_ltag HB_TAG('l','t','a','g')
+
+
+namespace AAT {
+
+using namespace OT;
+
+
+struct FTStringRange
+{
+  friend struct ltag;
+
+  bool sanitize (hb_sanitize_context_t *c, const void *base) const
+  {
+    TRACE_SANITIZE (this);
+    return_trace (c->check_struct (this) && (base+tag).sanitize (c, length));
+  }
+
+  protected:
+  NNOffsetTo<UnsizedArrayOf<HBUINT8>>
+		tag;		/* Offset from the start of the table to
+				 * the beginning of the string */
+  HBUINT16	length;		/* String length (in bytes) */
+  public:
+  DEFINE_SIZE_STATIC (4);
+};
+
+struct ltag
+{
+  static constexpr hb_tag_t tableTag = HB_AAT_TAG_ltag;
+
+  hb_language_t get_language (unsigned int i) const
+  {
+    const FTStringRange &range = tagRanges[i];
+    return hb_language_from_string ((const char *) (this+range.tag).arrayZ,
+				    range.length);
+  }
+
+  bool sanitize (hb_sanitize_context_t *c) const
+  {
+    TRACE_SANITIZE (this);
+    return_trace (likely (c->check_struct (this) &&
+			  version >= 1 &&
+			  tagRanges.sanitize (c, this)));
+  }
+
+  protected:
+  HBUINT32	version;	/* Table version; currently 1 */
+  HBUINT32	flags;		/* Table flags; currently none defined */
+  LArrayOf<FTStringRange>
+		tagRanges;	/* Range for each tag's string */
+  public:
+  DEFINE_SIZE_ARRAY (12, tagRanges);
+};
+
+} /* namespace AAT */
+
+
+#endif /* HB_AAT_LTAG_TABLE_HH */