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BUILDING_ON_WINDOWS.md

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Building on Windows

Note that installing all the development prerequisites and libraries will require about 12 GB of free disk space. Please ensure this space is available on your C: drive before proceeding.

This guide assumes you are on a 64-bit system. You might need to manually search out alternate download links should you desire to build Chatterino on a 32-bit system.

Prerequisites

Visual Studio

Download and install Visual Studio 2022 Community. In the installer, select "Desktop development with C++".

Notes:

  • This installation will take about 8 GB of disk space
  • You do not need to sign in with a Microsoft account after setup completes. You may simply exit the login dialog.

Qt

  1. Visit the Qt Open Source Page.
  2. Scroll down to the bottom
  3. Then select "Download the Qt Online Installer"
  4. Within the installer, Qt will prompt you to create an account to access Qt downloads.

Notes:

  • Installing the latest stable Qt version is advised for new installations, but if you want to use your existing installation please ensure you are running Qt 5.15.2 or later.

Components

When prompted which components to install, do the following:

  1. Unfold the tree element that says "Qt"
  2. Unfold the top most tree element (latest stable Qt version, e.g. Qt 6.5.3)
  3. Under this version, select the following entries:
    • MSVC 2019 64-bit (or MSVC 2022 64-bit from Qt 6.8 onwards)
    • Qt 5 Compatibility Module
    • Additional Libraries > Qt Image Formats
  4. Under the "Tools" tree element (at the bottom), ensure that Qt Creator X.X.X and Debugging Tools for Windows are selected. (they should be checked by default)
  5. Continue through the installer and let the installer finish installing Qt.

Note: This installation will take about 2 GB of disk space.

Once Qt is done installing, make sure you add its bin directory to your PATH (e.g. C:\Qt\6.5.3\msvc2019_64\bin)

How to add Qt to PATH
  1. Type "path" in the Windows start menu and click Edit the system environment variables.
  2. Click the Environment Variables... button bottom right.
  3. In the User variables (scoped to the current user) or System variables (system-wide) section, scroll down until you find Path and double click it.
  4. Click the New button top right and paste in the file path for your Qt installation (e.g. C:\Qt\6.5.3\msvc2019_64\bin by default).
  5. Click Ok

Advanced dependencies

These dependencies are only required if you are not using a package manager

Boost
  1. First, download a boost installer appropriate for your version of Visual Studio.

    • Visit the downloads list on SourceForge.

    • Select the latest version from the list.

    • Download the .exe file appropriate to your Visual Studio installation version and system bitness (choose -64 for 64-bit systems). Visual Studio versions map as follows: 14.3 in the filename corresponds to MSVC 2022. Anything prior to Visual Studio 2022 is unsupported. Please upgrade should you have an older installation.

      Convenience link for Visual Studio 2022: boost_1_84_0-msvc-14.3-64.exe

  2. When prompted where to install Boost, set the location to C:\local\boost.

  3. After the installation finishes, rename the C:\local\boost\lib64-msvc-14.3 (or similar) directory to simply lib (C:\local\boost\lib).

Note: This installation will take about 2.1 GB of disk space.

Building

Using CMake

Install conan 2

Install conan 2 and make sure it's in your PATH (default setting).

Adding conan to your PATH if you installed it with pip

Note: This will add all Python-scripts to your PATH, conan being one of them.

  1. Type "path" in the Windows start menu and click Edit the system environment variables.
  2. Click the Environment Variables... button bottom right.
  3. In the System variables section, scroll down until you find Path and double click it.
  4. Click the New button top right.
  5. Open up a terminal where.exe conan to find the file path (the folder that contains the conan.exe) to add.
  6. Add conan 2's file path (e.g. C:\Users\example\AppData\Roaming\Python\Python311\Scripts) to the blank text box that shows up. This is your current Python installation's scripts folder.
  7. Click Ok

Then in a terminal, configure conan to use NMake Makefiles as its generator:

  1. Generate a new profile
    conan profile detect

Build

Open up your terminal with the Visual Studio environment variables (e.g. x64 Native Tools Command Prompt for VS 2022), cd to the cloned chatterino2 directory and run the following commands:

mkdir build
cd build
conan install .. -s build_type=Release -c tools.cmake.cmaketoolchain:generator="NMake Makefiles" --build=missing --output-folder=.
cmake -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE="conan_toolchain.cmake" -DCMAKE_PREFIX_PATH="C:\Qt\6.5.3\msvc2019_64" ..
nmake

To build a debug build, you'll also need to add the -s compiler.runtime_type=Debug flag to the conan install invocation. See this StackOverflow post To build with plugins add -DCHATTERINO_PLUGINS=ON to cmake command.

Deploying Qt libraries

Once Chatterino has finished building, to ensure all .dll's are available you can run this from the build directory:
windeployqt bin/chatterino.exe --release --no-compiler-runtime --no-translations --no-opengl-sw --dir bin/

Can't find windeployqt? You forgot to add your Qt bin directory (e.g. C:\Qt\6.5.3\msvc2019_64\bin) to your PATH

Developing in Qt Creator

  1. Open the CMakeLists.txt file by double-clicking it, or by opening it via Qt Creator.
  2. You will be presented with a screen that is titled "Configure Project". In this screen, you should have at least one option present ready to be configured, like this: Qt Create Configure Project screenshot
  3. Select the profile(s) you want to build with and click "Configure Project".

Building and running

  • In the main screen, click the green "play symbol" on the bottom left to run the project directly.
  • Click the hammer on the bottom left to generate a build (does not run the build though).

Build results will be placed in a folder at the same level as the "chatterino2" project folder (e.g. if your sources are at C:\Users\example\src\chatterino2, then the build will be placed in an automatically generated folder under C:\Users\example\src, e.g. C:\Users\example\src\build-chatterino-Desktop_Qt_6.5.3_MSVC2019_64bit-Release.)

  • Note that if you are building Chatterino purely for usage, not for development, it is recommended that you click the "PC" icon above the play icon and select "Release" instead of "Debug".
  • Output and error messages produced by the compiler can be seen under the "4 Compile Output" tab in Qt Creator.

Producing standalone builds

If you build Chatterino, the result directories will contain a chatterino.exe file in the $OUTPUTDIR\release\ directory. This .exe file will not directly run on any given target system, because it will be lacking various Qt runtimes.

To produce a standalone package, you need to generate all required files using the tool windeployqt. This tool can be found in the bin directory of your Qt installation, e.g. at C:\Qt\6.5.3\msvc2019_64\bin\windeployqt.exe.

To produce all supplement files for a standalone build, follow these steps (adjust paths as required):

  1. Navigate to your build output directory with Windows Explorer, e.g. C:\Users\example\src\build-chatterino-Desktop_Qt_6.5.3_MSVC2019_64bit-Release
  2. Enter the release directory
  3. Delete all files except the chatterino.exe file. You should be left with a directory only containing chatterino.exe.
  4. Open a command prompt and execute:
    cd C:\Users\example\src\build-chatterino-Desktop_Qt_6.5.3_MSVC2019_64bit-Release\release
    windeployqt bin/chatterino.exe --release --no-compiler-runtime --no-translations --no-opengl-sw --dir bin/
  5. The releases directory will now be populated with all the required files to make the Chatterino build standalone.

You can now create a zip archive of all the contents in releases and distribute the program as is, without requiring any development tools to be present on the target system. (However, the CRT must be present, as usual - see the README).

Formatting

To automatically format your code, do the following:

  1. Download LLVM 16.0.6
  2. During the installation, make sure to add it to your path
  3. Enable Beautifier under Extensions on the left (check "Load on start" and restart)
  4. In Qt Creator, Select Tools > Options > Beautifier
  5. Under General select Tool: ClangFormat and enable Automatic Formatting on File Save
  6. Under Clang Format select Use predefined style: File and Fallback style: None

Building on MSVC with AddressSanitizer

Make sure you installed C++ AddressSanitizer in your VisualStudio installation like described in the Microsoft Docs.

To build Chatterino with AddressSanitizer on MSVC, you need to add -DCMAKE_CXX_FLAGS=/fsanitize=address to your CMake options.

When you start Chatterino, and it's complaining about clang_rt.asan_dbg_dynamic-x86_64.dll missing, copy the file found in <VisualStudio-installation-path>\VC\Tools\MSVC\<version>\bin\Hostx64\x64\clang_rt.asan_dbg_dynamic-x86_64.dll to the Chatterino folder inside your build folder.

To learn more about AddressSanitizer and MSVC, visit the Microsoft Docs.

Developing in CLion

Note: We're using build instead of the CLion default cmake-build-debug folder.

Install conan and make sure it's in your PATH (default setting).

Clone the repository as described in the readme. Open a terminal in the cloned folder and enter the following commands:

  1. mkdir build && cd build
  2. conan install .. -s build_type=Debug

Now open the project in CLion. You will be greeted with the Open Project Wizard. Set the CMake Options to

-DCMAKE_PREFIX_PATH=C:\Qt\6.5.3\msvc2019_64\lib\cmake\Qt6
-DCMAKE_TOOLCHAIN_FILE="conan_toolchain.cmake"

and the Build Directory to build.

Screenshot of CMake configuration

Screenshot CMake configuration

After the CMake project is loaded, open the Run/Debug Configurations.

Select the CMake Applications > chatterino configuration and add a new Run External tool task to Before launch.

  • Set the Program to C:\Qt\6.5.3\msvc2019_64\bin\windeployqt.exe
  • Set the Arguments to $CMakeCurrentProductFile$ --debug --no-compiler-runtime --no-translations --no-opengl-sw --dir bin/
  • Set the Working directory to $ProjectFileDir$\build
Screenshot of External tool

Screenshot of External Tool

Screenshot of Chatterino configuration

Screenshot of Chatterino configuration

Now you can run the chatterino | Debug configuration.

If you want to run the portable version of Chatterino, create a file called modes inside build/bin and write portable into it.

Debugging

To visualize Qt types like QString, you need to inform CLion and LLDB about these types.

  1. Set Enable NatVis renderers for LLDB option in Settings | Build, Execution, Deployment | Debugger | Data Views | C/C++ (should be enabled by default).
  2. Use the official NatVis file for Qt from qt-labs/vstools by saving them to the project root using PowerShell:
(iwr "https://github.com/qt-labs/vstools/raw/dev/QtVsTools.Package/qt6.natvis.xml").Content.Replace('##NAMESPACE##::', '') | Out-File qt6.natvis
# [OR] using the permalink
(iwr "https://github.com/qt-labs/vstools/raw/1c8ba533bd88d935be3724667e0087fd0796102c/QtVsTools.Package/qt6.natvis.xml").Content.Replace('##NAMESPACE##::', '') | Out-File qt6.natvis

Now you can debug the application and see Qt types rendered correctly. If this didn't work for you, try following the tutorial from JetBrains.