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µ-Boosting Your CMake Productivity with Environment Variables
TL;DR
CMake can be cumbersome for C++ developers due to its default settings, but using environment variables can streamline the build process. By setting these variables, developers can automate common configurations like enabling the Ninja generator and exporting compile commands.
✦ Why It Matters
Set environment variables today to automate CMake configurations and improve your build efficiency.
Key Takeaways
- Set CMAKE_GENERATOR in your environment for faster builds.
- Enable compile_commands.json generation with CMAKE_EXPORT_COMPILE_COMMANDS.
- Use CTEST_OUTPUT_ON_FAILURE to see test outputs automatically.
- Customize your CMake workflow by reading custom environment variables.
How It Works
CMake allows users to define configuration values through environment variables, which can be set in shell configuration files like bashrc. This means that options such as the build generator and compile command generation can be automatically applied every time a new build directory is created, eliminating repetitive command-line input.