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Claude's C Compiler: Compile Linux Kernel

Name: Claude's C Compiler: Compile Linux Kernel
Author: anthropics

Compile a booting Linux kernel with this dependency-free C compiler in Rust. For founders needing cross-platform compilation.

2,740 stars239 forksRustGuide quality 9/10Updated 2/5/2026100% free · open source

What it does

Claude's C Compiler is a dependency-free C compiler written in Rust that can compile C code for x86, ARM, and RISC-V architectures, including a booting Linux kernel.

When to use it

•When you need a lightweight, self-contained C compiler for embedded systems or other resource-constrained environments
•When you want to compile C code for multiple architectures from a single compiler
•When you need to compile a Linux kernel from scratch without relying on external dependencies

Ready-to-paste prompt

./target/release/claudes-c-compiler examples/linux_kernel.c -o linux_kernel -target x86_64-unknown-none

Heads up: The compiler requires the Rust toolchain to be installed and configured on your system, specifically a version compatible with the Rust code in the repository

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/claudes-c-compiler && curl -fsSL https://workflowstacks.com/api/skills/claudes-c-compiler/claude-skill -o ~/.claude/skills/claudes-c-compiler/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Claude's C Compiler: Compile Linux Kernel works

Codeflow

Free to inspect

Claude's C Compiler: Compile Linux Kernel is a very large Rust project (~223k lines across 374 code files). It is a full software project: use it through its install path rather than reading it end to end. Last commit 7 months ago, CC0-1.0 license, no tests found.

Size

Very large codebase

~223k lines · 374 code files · days to read — use, don't read

Setup

Developer setup

A real software project. Use it via its install path; don't expect to read it all.

Runs on

Rust

No API keys detected

Rust 96%C 4%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
src/main.rs
Where the program starts running
3
Cargo.toml
Dependencies and the commands it exposes

What's in each folder

src/Core code — the actual logic388 files

ideas/Folder21 files

include/Folder17 files

current_tasks/Folder14 files

projects/Folder1 files

READMENo tests foundDocumentedNo CICC0-1.0 licenseLast update 7 mo ago