##Build instructions for Visual Studio 2013

###Prepare folder

Choose a folder for the future build, for example **D:\TBuild\**. There you will have two folders, **Libraries** for third-party libs and **tdesktop** (or **tdesktop-master**) for the app.

###Clone source code

By git – in [Git Bash](http://git-scm.com/downloads) go to **/d/tbuild** and run

     git clone https://github.com/telegramdesktop/tdesktop.git

or download in ZIP and extract to **D:\TBuild\**, rename **tdesktop-master** to **tdesktop** to have **D:\TBuild\tdesktop\Telegram.sln** solution

###Prepare libraries

####OpenSSL 1.0.1h

https://www.openssl.org/related/binaries.html > **OpenSSL for Windows** > Download [**Win32 OpenSSL v1.0.1h** (16 Mb)](http://slproweb.com/download/Win32OpenSSL-1_0_1h.exe)

Install to **D:\TBuild\Libraries\OpenSSL-Win32**, while installing **Copy OpenSSL DLLs to** choose **The OpenSSL binaries (/bin) directory**

####LZMA SDK 9.20

http://www.7-zip.org/sdk.html > Download [**LZMA SDK (C, C++, C#, Java)** 9.20](http://downloads.sourceforge.net/sevenzip/lzma920.tar.bz2)

Extract to **D:\TBuild\Libraries**

#####Building library

* Open in VS2013 **D:\TBuild\Libraries\lzma\C\Util\LzmaLib\LzmaLib.dsw** > One-way upgrade – **OK**
* For **Debug** and **Release** configurations
  * LzmaLib Properties > General > Configuration Type = **Static library (.lib)** – **OK**
  * LzmaLib Properties > Librarian > General > Target Machine = **MachineX86 (/MACHINE:X86)** – **OK**
* Build Debug configuration
* Build Release configuration

####zlib 1.2.8

http://www.zlib.net/ > Download [**zlib source code, version 1.2.8, zipfile format**](http://zlib.net/zlib128.zip)

Extract to **D:\TBuild\Libraries\**

#####Building library

* Open in VS2013 **D:\TBuild\Libraries\zlib-1.2.8\contrib\vstudio\vc11\zlibvc.sln** > One-way upgrade – **OK**
* We are interested only in **zlibstat** project, but it depends on some custom pre-build step, so build all
* For **Debug** configuration
  * zlibstat Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded Debug (/MTd)** – **OK**
* For **Release** configuration
  * zlibstat Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded (/MT)** – **OK**
* Build Solution for Debug configuration – only **zlibstat** project builds successfully
* Build Solution for Release configuration – only **zlibstat** project builds successfully

####libexif 0.6.20

Get sources from https://github.com/telegramdesktop/libexif-0.6.20, by git – in [Git Bash](http://git-scm.com/downloads) go to **/d/tbuild/libraries** and run

    git clone https://github.com/telegramdesktop/libexif-0.6.20.git

or download in ZIP and extract to **D:\TBuild\Libraries\**, rename **libexif-0.6.20-master** to **libexif-0.6.20** to have **D:\TBuild\Libraries\libexif-0.6.20\win32\lib_exif.sln** solution

#####Building library

* Open in VS2013 **D:\TBuild\Libraries\libexif-0.6.20\win32\lib_exif.sln**
* Build Debug configuration
* Build Release configuration

####OpenAL Soft

Get sources by git – in [Git Bash](http://git-scm.com/downloads) go to **/d/tbuild/libraries** and run

    git clone git://repo.or.cz/openal-soft.git

to have **D:\TBuild\Libraries\openal-soft\CMakeLists.txt**

#####Building library

* Install [CMake](http://www.cmake.org/)
* Go in **cmd** to **D:\TBuild\Libraries\openal-soft\build\**
* Run **cmake -G "Visual Studio 12 2013" -D LIBTYPE:STRING=STATIC ..**
* Open in VS2013 **D:\TBuild\Libraries\openal-soft\build\OpenAL.sln**
* For **Debug** configuration
  * OpenAL32 Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded Debug (/MTd)** – **OK**
  * common Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded Debug (/MTd)** – **OK**
* For **Release** configuration
  * OpenAL32 Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded (/MT)** – **OK**
  * common Properties > C/C++ > Code Generation > Runtime Library = **Multi-threaded (/MT)** – **OK**

####libogg 1.3.2

Get sources from http://xiph.org/downloads/ – in [ZIP](http://downloads.xiph.org/releases/ogg/libogg-1.3.2.zip) and extract to **D:\TBuild\Libraries\**

#####Building library

* Open in VS2013 **D:\TBuild\Libraries\libogg-1.3.2\win32\VS2010\libogg_static.sln** > One-way upgrade – **OK**
* Build Debug configuration
* Build Release configuration

####Opus codec, opusfile

Get sources by git – in [Git Bash](http://git-scm.com/downloads) go to **/d/tbuild/libraries** and run

    git clone git://git.opus-codec.org/opus.git
    git clone git://git.xiph.org/opusfile.git

to have **D:\TBuild\Libraries\opus\win32**

#####Building libraries

* Open in VS2013 **D:\TBuild\Libraries\opus\win32\VS2010\opus.sln** > One-way upgrade – **OK**
* Build Debug configuration
* Build Release configuration
* Open in VS2013 **D:\TBuild\Libraries\opusfile\win32\VS2010\opusfile.sln** > One-way upgrade – **OK**
* For **Debug** and **Release** configurations
  * opusfile > C/C++ > General > Additional include directories > Add **../../../libogg-1.3.2/include;**
* Build Debug configuration
* Build Release configuration

####Qt 5.4.0, slightly patched

http://download.qt-project.org/official_releases/qt/5.4/5.4.0/single/qt-everywhere-opensource-src-5.4.0.zip

Extract to **D:\TBuild\Libraries\**, rename **qt-everywhere-opensource-src-5.4.0** to **QtStatic** to have **D:\TBuild\Libraries\QtStatic\qtbase\** folder

Apply patch

* OR copy (with overwrite!) everything from **D:\TBuild\tdesktop\\\_qt\_5\_4\_0\_patch\** to **D:\TBuild\Libraries\QtStatic\**
* OR copy **D:\TBuild\tdesktop\\\_qt\_5\_4\_0\_patch.diff** to **D:\TBuild\Libraries\QtStatic\**, go there in Git Bash and run

    git apply _qt_5_4_0_patch.diff

#####Building library

* Install Python 3.3.2 from https://www.python.org/download/releases/3.3.2 > [**Windows x86 MSI Installer (3.3.2)**](https://www.python.org/ftp/python/3.3.2/python-3.3.2.msi)
* Open **VS2013 x86 Native Tools Command Prompt.bat** (should be in **\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\Tools\Shortcuts\** folder)

There go to Qt directory

    D:
    cd TBuild\Libraries\QtStatic

and after that run configure

    configure -debug-and-release -opensource -confirm-license -static -I "D:\TBuild\Libraries\OpenSSL-Win32\include" -L "C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib" -l Gdi32 -opengl desktop -openssl-linked OPENSSL_LIBS_DEBUG="D:\TBuild\Libraries\OpenSSL-Win32\lib\VC\static\ssleay32MTd.lib D:\TBuild\Libraries\OpenSSL-Win32\lib\VC\static\libeay32MTd.lib" OPENSSL_LIBS_RELEASE="D:\TBuild\Libraries\OpenSSL-Win32\lib\VC\static\ssleay32MT.lib D:\TBuild\Libraries\OpenSSL-Win32\lib\VC\static\libeay32MT.lib" -mp -nomake examples -nomake tests -platform win32-msvc2013

to configure Qt build. After configuration is complete run

    nmake module-qtbase module-qtimageformats
    nmake module-qtbase-install_subtargets module-qtimageformats-install_subtargets

building (**nmake** command) will take really long time.

####Qt Visual Studio Addin 1.2.3

http://download.qt-project.org/official_releases/vsaddin/qt-vs-addin-1.2.3-opensource.exe

Close all VS2013 instances and install to default location

###Building Telegram Desktop

* Launch VS2013 for configuring Qt Addin
* QT5 > Qt Options > Add
  * Version name: **QtStatic.5.4.0**
  * Path: **D:\TBuild\Libraries\QtStatic\qtbase**
* Default Qt/Win version: **QtStatic.5.4.0** – **OK**
* File > Open > Project/Solution > **D:\TBuild\tdesktop\Telegram.sln**
* Build \ Build Solution (Debug and Release configurations)