Clion Registry Key

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CLion will use a so-called ‘upgrade subscription-based’ licensing model which is convenient with our frequent product updates delivering new features and fixing critical issues. That means that buying a perpetual license you get also a subscription lasting 1 full year for product upgrades to any and all new versions, including major releases. Name resolution 2.0 implementaion. Please see meta issue for details. The new name resolution is disabled by default. Please, note that the new resolve engine is in an experimental state and has known regressions. It is intended for internal use. If you wish to give a try: Ensure you have at lease -Xmx1500m in Help Edit custom VM Options Enable org.rust.resolve.new.engine registry key Enable.

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On Windows, configuring CLion requires setting up the environment: Cygwin, MinGW, WSL, or Microsoft Visual C++. You can have several environments installed on your system and create separate CLion toolchains for each of them. As a determining part of a toolchain, the environment provides C and C++ compilers, the make utility, and the debugger (in case of using default tools).

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For details on Remote Host toolchains, see Full Remote Mode.

MinGW

  1. Download and run the MinGW or MinGW-w64 installer.

  2. For MinGW-w64, make sure to select the required architecture. Note that the default suggested option is 32-bit.

  3. For MinGW (32-bit), select the following packages from the Basic Setup list: mingw-developer-tool, mingw32-base, mingw32-gcc-g++, mingw32-msys-base.

  4. Once the installation is finished, open CLion and go to File | Settings | Build, Execution, Deployment | Toolchains.

    Choose the MinGW toolchain that you want to configure or create a new one using the icon.

  5. CLion will attempt to detect the MinGW installation automatically. Check the detection result in the Environment field, and specify the path manually if required.

  6. Wait until the tools detection finishes. If CLion cannot detect compilers or make, double-check the installed packages in MinGW Installation Manager.

  7. Select the debugger:

    • For MinGW, you can choose between the bundled GDB, MinGW GDB, or your custom GDB executable.

      The recommended option is bundled GDB, since it is guaranteed to include Python support required for CLion data renderers.

    • For MinGW-w64, select either MinGW-w64 GDB or a custom GDB binary.

  8. Click Apply when all the tools are set correctly.

Cygwin

  1. Download the Cygwin installer, version 2.8 or later.

  2. Run the installer and select the following packages:

    • gcc-g++
    • make
    • gdb

    To select a package, type its name in the Search field and then click it in the list until a tick mark appears in the Bin? column:

  3. Once the installation is finished, open CLion and go to File | Settings | Build, Execution, Deployment | Toolchains. Choose the toolchain that you want to configure.

  4. Select Cygwin from the Environment list. CLion will attempt to detect the Cygwin installation automatically. Check the detection result, and specify the path manually if required.

  5. Wait until the tools detection finishes, and press Apply.

Windows Subsystem for Linux

You can use WSL, Windows Subsystem for Linux, as your working environment in CLion on Windows 10 (starting the Fall Creators Update version 1709, build 16299.15).

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WSL toolchain enables you to build projects using CMake and compilers from Linux and run/debug on WSL without leaving CLion running on your Windows machine.

Refer to our WSL guide for details on setting up WSL on your system and configuring WSL toolchains in CLion.

Microsoft Visual C++

MSVC compiler

CLion supports the Microsoft Visual C++ compiler that ships with Visual Studio 2013, 2015, 2017, and 2019.

Note that msbuild is not supported: CLion runs CMake with the NMAKE generator instead.

  1. Install Visual Studio 2013, 2015, 2017, or 2019 on your system.

  2. In CLion, go to File | Settings | Build, Execution, Deployment | Toolchains and choose the toolchain that you want to configure.

  3. Select Visual Studio from the Environment list. CLion will attempt to automatically detect the installed Visual Studio distribution. If the detection fails, set the path to Visual Studio manually.

  4. If required, specify the Architecture (x86, amd64, x86_arm, or another), Platform (store, uwp, onecore, or leave it blank), and Version. To build your project for the selected architecture, CLion will call the script to configure the environment with the specified parameters.

  5. Wait until the tools detection is finished:

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Clion Registry Key

For the case when your code includes MSVC extensions, CLion provides the support for:

  • __uuidof, __forceinline, __unaligned, and __alignof keywords;

  • pointer type attributes: __ptr32, __ptr64, __uptr, __sptr;

  • MSVC built-in data types: (unsigned) __int8, (unsigned) __int16, (unsigned) __int32, (unsigned) __int64, __wchar_t;

  • additional format specifiers, such as %I32 and %I64;

  • the clang's -fms-extensions flag.

Clang-cl compiler

As an alternative compiler, you can use clang-cl - the MSVC-compatible compiler driver for Clang. CLion supports clang-cl version 8.0 and later.

  1. Install clang-cl from the LLVM site or along with the Visual Studio tools.

    When installed from the LLVM site, the clang-cl binary can be found at the standard location C:Program FilesLLVMbinclang-cl.exe for the 64-bit version or C:Program Files (x86)LLVMbinclang-cl.exe for the 32-bit version.

  2. In CLion, go to File | Settings | Build, Execution, Deployment | Toolchains and select the Visual Studio toolchain that you want to configure, or create a new one.

  3. Point the C Compiler and C++ Compiler fields to clang-cl.exe. CLion will suggest the paths detected automatically.

Note that currently the -T clangcl options can't be picked up if the bundled CMake is in use along with the Visual Studio toolchain setup (CPP-18848).

LLDB-based MSVC debugger

The MSVC toolchain debugger is implemented on top of LLDB. It can work with native visualizers from the Visual Studio installation or from your project. To enable native visualizers support and set the desired diagnostics level, select Enable NatVis renderers for LLDB in Settings | Build, Execution, Deployment | Debugger | Data Views | C/C++:

Also, if you have custom native visualizers in your project, CLion will use them as well:

Clang compiler on Windows

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With CMake 3.15, it has become possible to use the Clang compiler on Windows with the MinGW-w64/MinGW toolchain.

However, the LLVM Clang for Windows is built using Microsoft Visual Studio, and all the built-in macros and include search paths are set up for use with Visual Studio. So if you take Clang from the LLVM repository, it will not work correctly when configured with the MinGW toolchain. One of the possible workarounds is described below.

Key

Set up the Clang compiler for MinGW

  1. Install MSYS2.

  2. Download the following packages with the pacman tool (use the pacman -S package_name command):

    • mingw-w64-x86_64-gcc

    • mingw-w64-x86_64-clang

    • mingw-w64-x86_64-lld

    • mingw-w64-x86_64-gdb

    • mingw-w64-x86_64-make

    • mingw-w64-x86_64-polly

    • mingw-w64-x86_64-compiler-rt

    This way, you will get the Clang compiler which is built with mingw-w64 and has paths and macros that correspond to this toolchain.

  3. Go to Settings / Preferences | Build, Execution, Deployment | Toolchains, create a MinGW toolchain, and set up the tools from MSYS.

    After specifying the Environment, check the automatically detected tools and make sure to switch to Clang in the C Compiler and C++ Compiler fields.

With this new toolchain configured, you can build the project and start using the Clang's advances tools, such as profile-guided optimization. Take a look at our detailed blogpost for instructions.

GDB on Windows

In the case of MinGW, CLion includes the bundled GDB (version 8.3). For Cygwin, you need to install the GDB package in the Cygwin Package Manager, as described in the Cygwin section of this guide.

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You can also switch to a custom GDB binary. In this case, the supported GDB versions are 7.8.x-8.3.x.

Clion Registry Key Command

Note that for GDB 8.0 and later, debugger output is redirected to CLion console by default. To enable opening an external console window for application input/output, go to Help | Find Action or press Ctrl+Shift+A , search for Registry, and set the following key: cidr.debugger.gdb.workaround.windows.forceExternalConsole.