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, 47 deletions

diff --git a/lang/cpp/src/callbacks.h b/lang/cpp/src/callbacks.h
deleted file mode 100644
index a2c6e1b9..00000000
--- a/lang/cpp/src/callbacks.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
-  callbacks.h - callback targets for internal use:
-  Copyright (C) 2003 Klarälvdalens Datakonsult AB
-  2016 Bundesamt für Sicherheit in der Informationstechnik
-  Software engineering by Intevation GmbH
-
-  This file is part of GPGME++.
-
-  This is an internal header file, subject to change without
-  notice. DO NOT USE.
-
-  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_CALLBACKS_H__
-#define __GPGMEPP_CALLBACKS_H__
-
-#include <gpgme.h>
-
-extern "C" {
-
-    void progress_callback(void *opaque, const char *what,
-                           int type, int current, int total);
-    gpgme_error_t passphrase_callback(void *opaque, const char *uid_hint,
-                                      const char *desc, int prev_was_bad, int fd);
-}
-
-namespace GpgME
-{
-extern const gpgme_data_cbs data_provider_callbacks;
-extern const gpgme_edit_cb_t edit_interactor_callback;
-}
-
-#endif // __GPGME_CALLBACKS_H__