tdesktop/docs/building-msvc.md

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# Build instructions for Visual Studio 2019
- [Prepare folder](#prepare-folder)
- [Install third party software](#install-third-party-software)
- [Clone source code and prepare libraries](#clone-source-code-and-prepare-libraries)
- [Build the project](#build-the-project)
- [Qt Visual Studio Tools](#qt-visual-studio-tools)
## Prepare folder
Choose an empty folder for the future build, for example **D:\\TBuild**. It will be named ***BuildPath*** in the rest of this document. Create two folders there, ***BuildPath*\\ThirdParty** and ***BuildPath*\\Libraries**.
All commands (if not stated otherwise) will be launched from **x86 Native Tools Command Prompt for VS 2019.bat** (should be in **Start Menu > Visual Studio 2019** menu folder). Pay attention not to use any other Command Prompt.
### Obtain your API credentials
You will require **api_id** and **api_hash** to access the Telegram API servers. To learn how to obtain them [click here][api_credentials].
## Install third party software
* Download **Strawberry Perl** installer from [http://strawberryperl.com/](http://strawberryperl.com/) and install to ***BuildPath*\\ThirdParty\\Strawberry**
* Download **NASM** installer from [http://www.nasm.us](http://www.nasm.us) and install to ***BuildPath*\\ThirdParty\\NASM**
* Download **Yasm** executable from [http://yasm.tortall.net/Download.html](http://yasm.tortall.net/Download.html), rename to *yasm.exe* and put to ***BuildPath*\\ThirdParty\\yasm**
* Download **MSYS2** installer from [http://www.msys2.org/](http://www.msys2.org/) and install to ***BuildPath*\\ThirdParty\\msys64**
* Download **jom** archive from [http://download.qt.io/official_releases/jom/jom.zip](http://download.qt.io/official_releases/jom/jom.zip) and unpack to ***BuildPath*\\ThirdParty\\jom**
* Download **Python 2.7** installer from [https://www.python.org/downloads/](https://www.python.org/downloads/) and install to ***BuildPath*\\ThirdParty\\Python27**
* Download **CMake** installer from [https://cmake.org/download/](https://cmake.org/download/) and install to ***BuildPath*\\ThirdParty\\cmake**
* Download **Ninja** executable from [https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-win.zip](https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-win.zip) and unpack to ***BuildPath*\\ThirdParty\\Ninja**
* Download **Git** installer from [https://git-scm.com/download/win](https://git-scm.com/download/win) and install it.
* Download **depot_tools** archive from [https://storage.googleapis.com/chrome-infra/depot_tools.zip](https://storage.googleapis.com/chrome-infra/depot_tools.zip) and unpack to ***BuildPath*\\ThirdParty\\depot_tools**
Open **x86 Native Tools Command Prompt for VS 2019.bat**, go to ***BuildPath*** and run
cd ThirdParty
git clone https://github.com/desktop-app/patches.git
cd patches
git checkout deeea06
cd ../
git clone https://chromium.googlesource.com/external/gyp
cd gyp
git checkout 9f2a7bb1
git apply ../patches/gyp.diff
cd ..\..
Add **GYP** and **Ninja** to your PATH:
* Open **Control Panel** -> **System** -> **Advanced system settings**
* Press **Environment Variables...**
* Select **Path**
* Press **Edit**
* Add ***BuildPath*\\ThirdParty\\depot_tools** value
* Add ***BuildPath*\\ThirdParty\\gyp** value
* Add ***BuildPath*\\ThirdParty\\Ninja** value
## Clone source code and prepare libraries
Open **x86 Native Tools Command Prompt for VS 2019.bat**, go to ***BuildPath*** and run
SET PATH=%cd%\ThirdParty\depot_tools;%cd%\ThirdParty\Strawberry\perl\bin;%cd%\ThirdParty\Python27;%cd%\ThirdParty\NASM;%cd%\ThirdParty\jom;%cd%\ThirdParty\cmake\bin;%cd%\ThirdParty\yasm;%PATH%
git clone --recursive https://github.com/telegramdesktop/tdesktop.git
mkdir Libraries
cd Libraries
SET LibrariesPath=%cd%
git clone https://github.com/desktop-app/patches.git
cd patches
git checkout deeea06
cd ..
git clone https://github.com/desktop-app/lzma.git
cd lzma\C\Util\LzmaLib
msbuild LzmaLib.sln /property:Configuration=Debug
msbuild LzmaLib.sln /property:Configuration=Release
cd ..\..\..\..
git clone https://github.com/openssl/openssl.git openssl_1_1_1
cd openssl_1_1_1
git checkout OpenSSL_1_1_1-stable
perl Configure no-shared no-tests debug-VC-WIN32
nmake
mkdir out32.dbg
move libcrypto.lib out32.dbg
move libssl.lib out32.dbg
move ossl_static.pdb out32.dbg\ossl_static
nmake clean
move out32.dbg\ossl_static out32.dbg\ossl_static.pdb
perl Configure no-shared VC-WIN32
nmake
mkdir out32
move libcrypto.lib out32
move libssl.lib out32
move ossl_static.pdb out32
cd ..
git clone https://github.com/desktop-app/zlib.git
cd zlib
cd contrib\vstudio\vc14
msbuild zlibstat.vcxproj /property:Configuration=Debug
msbuild zlibstat.vcxproj /property:Configuration=ReleaseWithoutAsm
cd ..\..\..\..
git clone https://github.com/telegramdesktop/openal-soft.git
cd openal-soft
git checkout fix_capture
cd build
cmake -G "Visual Studio 16 2019" -A Win32 -D LIBTYPE:STRING=STATIC -D FORCE_STATIC_VCRT:STRING=ON ..
msbuild OpenAL.vcxproj /property:Configuration=Debug
msbuild OpenAL.vcxproj /property:Configuration=Release
cd ..\..
git clone https://github.com/google/breakpad
cd breakpad
git checkout a1dbcdcb43
git apply ../../tdesktop/Telegram/Patches/breakpad.diff
cd src
git clone https://github.com/google/googletest testing
cd client\windows
gyp --no-circular-check breakpad_client.gyp --format=ninja
cd ..\..
ninja -C out/Debug common crash_generation_client exception_handler
ninja -C out/Release common crash_generation_client exception_handler
cd tools\windows\dump_syms
gyp dump_syms.gyp
msbuild dump_syms.vcxproj /property:Configuration=Release
cd ..\..\..\..\..
git clone https://github.com/telegramdesktop/opus.git
cd opus
git checkout tdesktop
cd win32\VS2015
msbuild opus.sln /property:Configuration=Debug /property:Platform="Win32"
msbuild opus.sln /property:Configuration=Release /property:Platform="Win32"
cd ..\..\..\..
SET PATH_BACKUP_=%PATH%
SET PATH=%cd%\ThirdParty\msys64\usr\bin;%PATH%
cd Libraries
git clone https://github.com/FFmpeg/FFmpeg.git ffmpeg
cd ffmpeg
git checkout release/3.4
set CHERE_INVOKING=enabled_from_arguments
set MSYS2_PATH_TYPE=inherit
bash --login ../../tdesktop/Telegram/Patches/build_ffmpeg_win.sh
SET PATH=%PATH_BACKUP_%
cd ..
git clone git://code.qt.io/qt/qt5.git qt_5_12_8
cd qt_5_12_8
perl init-repository --module-subset=qtbase,qtimageformats
git checkout v5.12.8
git submodule update qtbase qtimageformats
cd qtbase
for /r %i in (..\..\patches\qtbase_5_12_8\*) do git apply %i
cd ..
configure -prefix "%LibrariesPath%\Qt-5.12.8" -debug-and-release -force-debug-info -opensource -confirm-license -static -static-runtime -I "%LibrariesPath%\openssl_1_1_1\include" -no-opengl -openssl-linked OPENSSL_LIBS_DEBUG="%LibrariesPath%\openssl_1_1_1\out32.dbg\libssl.lib %LibrariesPath%\openssl_1_1_1\out32.dbg\libcrypto.lib Ws2_32.lib Gdi32.lib Advapi32.lib Crypt32.lib User32.lib" OPENSSL_LIBS_RELEASE="%LibrariesPath%\openssl_1_1_1\out32\libssl.lib %LibrariesPath%\openssl_1_1_1\out32\libcrypto.lib Ws2_32.lib Gdi32.lib Advapi32.lib Crypt32.lib User32.lib" -mp -nomake examples -nomake tests -platform win32-msvc
jom -j4
jom -j4 install
cd ..
mkdir webrtc
cd webrtc
copy ..\patches\webrtc\.gclient .gclient
git clone https://github.com/open-webrtc-toolkit/owt-deps-webrtc src
gclient sync
cd src
git apply ../../patches/webrtc/src.diff
cd build
git apply ../../../patches/webrtc/build.diff
cd ..\third_party
git apply ../../../patches/webrtc/third_party.diff
cd libsrtp
git apply ../../../../patches/webrtc/libsrtp.diff
cd ..\..
..\..\patches\webrtc\configure.bat
ninja -C out/Debug webrtc
ninja -C out/Release webrtc
cd ..\..
## Build the project
Go to ***BuildPath*\\tdesktop\\Telegram** and run (using [your **api_id** and **api_hash**](#obtain-your-api-credentials))
configure.bat -D TDESKTOP_API_ID=YOUR_API_ID -D TDESKTOP_API_HASH=YOUR_API_HASH -D DESKTOP_APP_USE_PACKAGED=OFF -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF
* Open ***BuildPath*\\tdesktop\\out\\Telegram.sln** in Visual Studio 2019
* Select Telegram project and press Build > Build Telegram (Debug and Release configurations)
* The result Telegram.exe will be located in **D:\TBuild\tdesktop\out\Debug** (and **Release**)
### Qt Visual Studio Tools
For better debugging you may want to install Qt Visual Studio Tools:
* Open **Extensions** -> **Manage Extensions**
* Go to **Online** tab
* Search for **Qt**
* Install **Qt Visual Studio Tools** extension
[api_credentials]: api_credentials.md