CLion 2020.2 Goes Beta: CMake PCH, Opening Project from a Generated Folder, and Performance Improvements

Posted on by Anastasia Kazakova

CLion 2020.2 has reached Beta! To install build 202.6397.12, download it from the website, update from our Toolbox App, get it through a snap package (if you are using Ubuntu), or use a patch update.


CMake Precompiled Headers

CLion has supported precompiled headers for a while, but this didn’t cover all the cases. In this EAP build, we’re adding support for the MSVC Force Include option (CPP-21063) and for CMake 3.16 PCH. In the latter case, code navigation and highlighting for symbols from the precompiled headers added via the PRECOMPILE_HEADERS and/or INTERFACE_PRECOMPILE_HEADERS properties of a CMake target now works in CLion.

Please note there are some limitations affecting Cygwin/WSL/Remote toolchains (CPP-21192).

Open project from CMake generated folder

When a CMake folder has already been generated for your project, CLion can now open the project without regenerating the folder. This should be a great time-saver. This feature previously worked only for the Makefile generator, but now it is supported for all generators (like Ninja, or others).

Clang-Tidy configuration

You can set Clang-Tidy configuration files to take precedence over the IDE settings. To do so, go to Settings/Preferences | Editor | Inspections | C/C++ | General | Clang-Tidy and select the Prefer .clang-tidy files over IDE settings option. We have slightly reworked CLion’s behavior in this case:

  • CLion tracks all .clang-tidy files in the project directory.
  • When analyzing the source file:
    • If there’s a reachable .clang-tidy file (located in the current directory or in one of the parent directories), CLion uses the settings from that file.
    • Otherwise, CLion relies on its own settings.

Other enhancements

  • Fix for the UI freeze during the reformat code operation (CPP-20925).
  • Fix for the UI freeze when highlighting the code in the Find Usage dialog (CPP-17472).
  • Doxygen’s @a and @c tags are now rendered correctly in the Quick Documentation popup (CPP-18485).

The full list of fixes can be found in the release notes here.

Our previous EAP builds introduced the following enhancements:


Your CLion team
The Drive to Develop


Subscribe for updates