cpp,qt: Remove C++ and Qt bindings

* README: Update.
* configure.ac: Remove checks, variables and file generations related to
the C++/Qt bindings. Remove cpp and qt* from available_languages and
default_languages.
* lang/Makefile.am (DIST_SUBDIRS): Remove cpp and qt.
* lang/cpp, lang/qt: Remove.
* m4/ax_check_compile_flag.m4, m4/ax_cxx_compile_stdcxx.m4,
m4/ax_gcc_func_attribute.m4, m4/pkg.m4, m4/qt5.m4, m4/qt6.m4: Remove.
--

The C++ and Qt bindings have been moved to separate Git repositories:
gpgmepp and gpgmeqt.

GnuPG-bug-id: 7262

1 files changed, 0 insertions, 84 deletions

diff --git a/lang/cpp/src/error.h b/lang/cpp/src/error.h
deleted file mode 100644
index 000b562b..00000000
--- a/lang/cpp/src/error.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
-  error.h - wraps a gpgme error
-  Copyright (C) 2003, 2007 Klarälvdalens Datakonsult AB
-  2016 Bundesamt für Sicherheit in der Informationstechnik
-  Software engineering by Intevation GmbH
-
-  This file is part of GPGME++.
-
-  GPGME++ 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.
-
-  GPGME++ 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 GPGME++; see the file COPYING.LIB.  If not, write to the
-  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA 02110-1301, USA.
-*/
-
-// -*- c++ -*-
-#ifndef __GPGMEPP_ERROR_H__
-#define __GPGMEPP_ERROR_H__
-
-#include "global.h"
-
-#include <string>
-#include <iosfwd>
-
-#include <gpg-error.h>
-
-#ifndef GPGMEPP_ERR_SOURCE_DEFAULT
-# define GPGMEPP_ERR_SOURCE_DEFAULT GPG_ERR_SOURCE_USER_1
-#endif
-
-namespace GpgME
-{
-
-class GPGMEPP_EXPORT Error
-{
-public:
-    Error() : mErr(0), mMessage() {}
-    explicit Error(unsigned int e) : mErr(e), mMessage() {}
-
-    const char *source() const;
-    /* This function is deprecated. Use asStdString() instead. asString() may
-     * return wrongly encoded (i.e. not UTF-8) results on Windows for the main
-     * thread if the function was first called from a secondary thread. */
-    GPGMEPP_DEPRECATED const char *asString() const;
-    std::string asStdString() const;
-
-    int code() const;
-    int sourceID() const;
-
-    bool isCanceled() const;
-
-    unsigned int encodedError() const
-    {
-        return mErr;
-    }
-    int toErrno() const;
-
-    static bool hasSystemError();
-    static Error fromSystemError(unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);
-    static void setSystemError(gpg_err_code_t err);
-    static void setErrno(int err);
-    static Error fromErrno(int err, unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);
-    static Error fromCode(unsigned int err, unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);
-
-    GPGMEPP_MAKE_SAFE_BOOL_OPERATOR(mErr  &&!isCanceled())
-private:
-    unsigned int mErr;
-    mutable std::string mMessage;
-};
-
-GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Error &err);
-
-} // namespace GpgME
-
-#endif /* __GPGMEPP_ERROR_H__ */