How does this skill help with slow builds?

It guides you through measuring baseline performance and using diagnostic flags like 'make -d' to identify whether the bottleneck is in compilation, linking, or recursive variable expansion.

Can it fix 'everything always rebuilds' issues?

Yes, it uses systematic tracing to find which file timestamps or PHONY targets are triggering unnecessary rebuilds and suggests fixes for your dependency logic.

Does it support parallel builds?

Yes, it provides patterns for enabling parallel flags safely and configuring .NOTPARALLEL only where necessary after diagnosing build order dependencies.

What Make flags does it prioritize for debugging?

It primarily utilizes -n (dry-run) to see planned actions, -d (debug) for decision logic, -p (print database) for variable values, and --trace for execution order.

Makefile Debugging & Optimization

Name: Makefile Debugging & Optimization
Author: therealbill

bytherealbill

•

デプロイメントとDevOps

Diagnoses and optimizes GNU Make build systems using systematic diagnostic methodologies and performance-tuning patterns.

This skill equips Claude to troubleshoot complex GNU Make issues by prioritizing systematic diagnosis over guesswork. It leverages essential diagnostic flags—such as dry-runs, dependency tracing, and variable database inspection—to pinpoint the root causes of slow builds, unnecessary recompilations, or failed dependencies. By establishing a rigorous debugging workflow, the skill ensures that performance optimizations like parallel execution and compiler caching are applied only when necessary, resulting in more maintainable and efficient build pipelines.

主な機能

01Systematic build diagnosis using dry-runs and execution tracing

02Deep inspection of Makefile variables and implicit rule databases

03Identification of dependency bottlenecks and timestamp mismatches

043 GitHub stars

05Performance optimization via parallelization and compiler caching

06Educational guidance on GNU Make best practices and anti-patterns

ユースケース

01Fixing 'everything rebuilds' scenarios by tracing file timestamps and dependency chains

02Identifying the root cause of slow builds and implementing targeted ccache or parallel optimizations

03Verifying complex Makefile logic and variable expansion before actual execution

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add therealbill/mynet makefile-debugging-optimization

For use in Claude.ai and ChatGPT

主な機能

01Systematic build diagnosis using dry-runs and execution tracing

02Deep inspection of Makefile variables and implicit rule databases

03Identification of dependency bottlenecks and timestamp mismatches

043 GitHub stars

05Performance optimization via parallelization and compiler caching

06Educational guidance on GNU Make best practices and anti-patterns

ユースケース

01Fixing 'everything rebuilds' scenarios by tracing file timestamps and dependency chains

02Identifying the root cause of slow builds and implementing targeted ccache or parallel optimizations

03Verifying complex Makefile logic and variable expansion before actual execution

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add therealbill/mynet makefile-debugging-optimization

For use in Claude.ai and ChatGPT