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cpp-build-systems

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Use in C/C++ projects for build configure/errors, compile_commands.json generation, or selecting CMake/Meson/Make/Bazel commands.

skills/cpp-build-systems/SKILL.md

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# C/C++ Build Systems

The build system is the single most important piece of C/C++ tooling — it determines how every other tool (clang-tidy, IWYU, language servers, debuggers) understands your code.

## The compile_commands.json invariant

> **Every C/C++ project must export `compile_commands.json`.**

It's a JSON database of compiler invocations per file. Without it, clang-tidy/IWYU/clangd can't parse your code correctly (they need to know macros, includes, standard, flags). The `cpp-static-analysis` skill enforces this prerequisite.

## Per-build-system commands

### CMake
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