# [Telegram Desktop][telegram_desktop] - pro.cxx fork

This is the complete source code and the build instructions for the alpha version of the pro.cxx fork of desktop client for the [Telegram][telegram] messenger, based on the [Telegram API][telegram_api] and the [MTProto][telegram_proto] secure protocol.

## Build instructions

What you need to have installed:

* Qt 5.9+ (with private modules, like qtbase5-private-dev)
* OpenSSL (conan installs this if you use conan)
* OpenAL-soft
* FFmpeg with swscale and swresample libs
* zlib
* opus (libopus-dev)

Provide paths to OpenAL-soft and Qt5 in CMAKE_PREFIX_PATH variable when configuring.

    ccache -o sloppiness=pch_defines,time_macros
    mkdir _conan_build_
    cd _conan_build_
    conan install .. --build missing
    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_PREFIX_PATH="/usr/local/opt/qt5/;/usr/local/opt/openal-soft" ..
    ninja

[![Version](https://badge.fury.io/gh/telegramdesktop%2Ftdesktop.svg)](https://github.com/telegramdesktop/tdesktop/releases)
[![Build Status](https://travis-ci.org/telegramdesktop/tdesktop.svg?branch=dev)](https://travis-ci.org/telegramdesktop/tdesktop)
[![Build status](https://ci.appveyor.com/api/projects/status/2kodvgwvlua3o6hp/branch/dev?svg=true)](https://ci.appveyor.com/project/procxx/tdesktop)

![Preview of Telegram Desktop][preview_image]

The source code is published under GPLv3 with OpenSSL exception, the license is available [here][license].

## Supported systems

* Windows XP - Windows 10 (**not** RT)
* Mac OS X 10.8 - Mac OS X 10.11
* Mac OS X 10.6 - Mac OS X 10.7 (separate build)
* Ubuntu 12.04 - Ubuntu 16.04
* Fedora 22 - Fedora 24

## Third-party

* Qt 5.9+ ([LGPL](http://doc.qt.io/qt-5/lgpl.html))
* OpenSSL 1.0.1g ([OpenSSL License](https://www.openssl.org/source/license.html))
* zlib 1.2.8 ([zlib License](http://www.zlib.net/zlib_license.html))
* libexif 0.6.20 ([LGPL](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html))
* LZMA SDK 9.20 ([public domain](http://www.7-zip.org/sdk.html))
* liblzma ([public domain](http://tukaani.org/xz/))
* Google Breakpad ([License](https://chromium.googlesource.com/breakpad/breakpad/+/master/LICENSE))
* Google Crashpad ([Apache License 2.0](https://chromium.googlesource.com/crashpad/crashpad/+/master/LICENSE))
* Ninja ([Apache License 2.0](https://github.com/ninja-build/ninja/blob/master/COPYING))
* OpenAL Soft ([LGPL](http://kcat.strangesoft.net/openal.html))
* Opus codec ([BSD License](http://www.opus-codec.org/license/))
* FFmpeg ([LGPL](https://www.ffmpeg.org/legal.html))
* Guideline Support Library ([MIT License](https://github.com/Microsoft/GSL/blob/master/LICENSE))
* Mapbox Variant ([BSD License](https://github.com/mapbox/variant/blob/master/LICENSE))
* Open Sans font ([Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0.html))
* Emoji alpha codes ([MIT License](https://github.com/emojione/emojione/blob/master/extras/alpha-codes/LICENSE.md))
* Catch test framework ([Boost License](https://github.com/philsquared/Catch/blob/master/LICENSE.txt))

* [CMake][cmake]

[//]: # (LINKS)
[telegram]: https://telegram.org
[telegram_desktop]: https://desktop.telegram.org
[telegram_api]: https://core.telegram.org
[telegram_proto]: https://core.telegram.org/mtproto
[license]: LICENSE
[cmake]: docs/building-cmake.md
[preview_image]: docs/assets/preview.png