Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kcodecs/source/src/kcodecsuuencode.h

@@ -0,0 +1,103 @@
+/*  -*- c++ -*-
+    SPDX-FileCopyrightText: 2002 Marc Mutz <mutz@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+/**
+  @file
+  This file is part of the API for handling @ref MIME data and
+  defines a @ref uuencode @ref Codec class.
+
+  @brief
+  Defines the UUCodec class.
+
+  @authors Marc Mutz \<mutz@kde.org\>
+
+  @glossary @anchor UUEncode @anchor uuencode @b uuencode:
+  a binary to text encoding scheme. For more information, see the
+  <a href="http://en.wikipedia.org/wiki/Uuencode"> Wikipedia Uuencode page</a>.
+*/
+
+#ifndef KCODECS_UUENCODE_H
+#define KCODECS_UUENCODE_H
+
+#include "kcodecs.h"
+
+namespace KCodecs
+{
+/**
+  @brief
+  A class representing the @ref UUEncode @ref codec.
+*/
+class UUCodec : public Codec
+{
+public:
+    /**
+      Constructs a UUEncode codec.
+    */
+    UUCodec()
+        : Codec()
+    {
+    }
+
+    /**
+      Destroys the codec.
+    */
+    ~UUCodec() override
+    {
+    }
+
+    /**
+      @copydoc
+      Codec::name()
+    */
+    const char *name() const override
+    {
+        return "x-uuencode";
+    }
+
+    /**
+      @copydoc
+      Codec::maxEncodedSizeFor()
+    */
+    qsizetype maxEncodedSizeFor(qsizetype insize, NewlineType newline = Codec::NewlineLF) const override
+    {
+        Q_UNUSED(newline);
+        return insize; // we have no encoder!
+    }
+
+    /**
+      @copydoc
+      Codec::maxDecodedSizeFor()
+    */
+    qsizetype maxDecodedSizeFor(qsizetype insize, NewlineType newline = Codec::NewlineLF) const override
+    {
+        // assuming all characters are part of the uuencode stream (which
+        // does almost never hold due to required linebreaking; but
+        // additional non-uu chars don't affect the output size), each
+        // 4-tupel of them becomes a 3-tupel in the decoded octet
+        // stream. So:
+        qsizetype result = ((insize + 3) / 4) * 3;
+        // but all of them may be \n, so
+        if (newline == Codec::NewlineCRLF) {
+            result *= 2; // :-o
+        }
+        return result;
+    }
+
+    /**
+      @copydoc
+      Codec::makeEncoder()
+    */
+    Encoder *makeEncoder(NewlineType newline = Codec::NewlineLF) const override;
+
+    /**
+      @copydoc
+      Codec::makeEncoder()
+    */
+    Decoder *makeDecoder(NewlineType newline = Codec::NewlineLF) const override;
+};
+
+} // namespace KCodecs
+
+#endif // KCODECS_UUENCODE_H