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, 255 deletions

diff --git a/lang/cpp/src/engineinfo.h b/lang/cpp/src/engineinfo.h
deleted file mode 100644
index 5dc5370c..00000000
--- a/lang/cpp/src/engineinfo.h
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
-  engineinfo.h
-  Copyright (C) 2004 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.
-*/
-
-#ifndef __GPGMEPP_ENGINEINFO_H__
-#define __GPGMEPP_ENGINEINFO_H__
-
-#include "global.h"
-
-#include <memory>
-
-#include <algorithm>
-#include <string>
-#include <iostream>
-
-namespace GpgME
-{
-
-class GPGMEPP_EXPORT EngineInfo
-{
-public:
-    struct Version
-    {
-        int major, minor, patch;
-        Version()
-        {
-          major = 0;
-          minor = 0;
-          patch = 0;
-        }
-
-        Version(const std::string& version)
-        {
-            if (version.empty() ||
-                std::sscanf(version.c_str(), "%d.%d.%d", &major, &minor, &patch) != 3) {
-                major = 0;
-                minor = 0;
-                patch = 0;
-            }
-        }
-
-        Version(const char *version)
-        {
-            if (!version ||
-                std::sscanf(version, "%d.%d.%d", &major, &minor, &patch) != 3) {
-                major = 0;
-                minor = 0;
-                patch = 0;
-            }
-        }
-
-        bool operator < (const Version& other) const
-        {
-            if (major > other.major ||
-                (major == other.major && minor > other.minor) ||
-                (major == other.major && minor == other.minor && patch > other.patch) ||
-                (major >= other.major && minor >= other.minor && patch >= other.patch)) {
-                return false;
-            }
-            return true;
-        }
-
-        bool operator < (const char* other) const
-        {
-            return operator<(Version(other));
-        }
-
-        bool operator <= (const Version &other) const
-        {
-            return !operator>(other);
-        }
-
-        bool operator <= (const char *other) const
-        {
-            return operator<=(Version(other));
-        }
-
-        bool operator > (const char* other) const
-        {
-            return operator>(Version(other));
-        }
-
-        bool operator > (const Version & other) const
-        {
-            return !operator<(other) && !operator==(other);
-        }
-
-        bool operator >= (const Version &other) const
-        {
-            return !operator<(other);
-        }
-
-        bool operator >= (const char *other) const
-        {
-            return operator>=(Version(other));
-        }
-
-        bool operator == (const Version& other) const
-        {
-            return major == other.major
-                && minor == other.minor
-                && patch == other.patch;
-        }
-
-        bool operator == (const char* other) const
-        {
-            return operator==(Version(other));
-        }
-
-        bool operator != (const Version &other) const
-        {
-            return !operator==(other);
-        }
-
-        bool operator != (const char *other) const
-        {
-            return operator!=(Version(other));
-        }
-
-        // the non-const overloads of the comparison operators are kept for
-        // binary compatibility
-        bool operator < (const Version& other)
-        {
-            if (major > other.major ||
-                (major == other.major && minor > other.minor) ||
-                (major == other.major && minor == other.minor && patch > other.patch) ||
-                (major >= other.major && minor >= other.minor && patch >= other.patch)) {
-                return false;
-            }
-            return true;
-        }
-
-        bool operator < (const char* other)
-        {
-            return operator<(Version(other));
-        }
-
-        bool operator <= (const Version &other)
-        {
-            return !operator>(other);
-        }
-
-        bool operator <= (const char *other)
-        {
-            return operator<=(Version(other));
-        }
-
-        bool operator > (const char* other)
-        {
-            return operator>(Version(other));
-        }
-
-        bool operator > (const Version & other)
-        {
-            return !operator<(other) && !operator==(other);
-        }
-
-        bool operator >= (const Version &other)
-        {
-            return !operator<(other);
-        }
-
-        bool operator >= (const char *other)
-        {
-            return operator>=(Version(other));
-        }
-
-        bool operator == (const Version& other)
-        {
-            return major == other.major
-                && minor == other.minor
-                && patch == other.patch;
-        }
-
-        bool operator == (const char* other)
-        {
-            return operator==(Version(other));
-        }
-
-        bool operator != (const Version &other)
-        {
-            return !operator==(other);
-        }
-
-        bool operator != (const char *other)
-        {
-            return operator!=(Version(other));
-        }
-
-        friend std::ostream& operator << (std::ostream& stream, const Version& ver)
-        {
-            stream << ver.major;
-            stream << '.';
-            stream << ver.minor;
-            stream << '.';
-            stream << ver.patch;
-            return stream;
-        }
-    };
-
-    EngineInfo();
-    explicit EngineInfo(gpgme_engine_info_t engine);
-
-    EngineInfo(const EngineInfo &other) = default;
-    const EngineInfo &operator=(EngineInfo other)
-    {
-        swap(other);
-        return *this;
-    }
-
-    void swap(EngineInfo &other)
-    {
-        using std::swap;
-        swap(this->d, other.d);
-    }
-
-    bool isNull() const;
-
-    Protocol protocol() const;
-    const char *fileName() const;
-    const char *version() const;
-    Version engineVersion() const;
-    const char *requiredVersion() const;
-    const char *homeDirectory() const;
-
-private:
-    class Private;
-    std::shared_ptr<Private> d;
-};
-
-}
-
-GPGMEPP_MAKE_STD_SWAP_SPECIALIZATION(EngineInfo)
-
-#endif // __GPGMEPP_ENGINEINFO_H__