BU

build-cmake

Manages CMake configurations for iPlug2 audio projects across various generators like Ninja, Xcode, and Visual Studio.

Install

mkdir -p .claude/skills/build-cmake && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/2171" && unzip -o skill.zip -d .claude/skills/build-cmake && rm skill.zip

Installs to .claude/skills/build-cmake

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Build an iPlug2 plugin project using CMake with Ninja, Xcode, or Visual Studio generators
89 charsno explicit “when” trigger
Intermediate

Key capabilities

  • Configure build environment with Ninja, Xcode, or Visual Studio
  • Switch between Debug and Release build types
  • Define target formats including VST3, CLAP, and AAX
  • Toggle cross-platform compiler options for iOS and visionOS
  • Integrate IGraphics backends like Skia or Metal

How it works

Invokes the CMake executable with specified generators and project-specific flags to produce native build files or direct build artifacts.

Inputs & outputs

You give it
Target generator flag and build configuration parameters
You get back
Compiled plugin binaries or IDE project files

When to use build-cmake

  • Configure build environment for audio plugins
  • Build VST3 or AU targets
  • Generate project files for IDEs
  • Switch between Debug and Release builds

About this skill

Build iPlug2 Plugin with CMake

Use this skill when the user wants to build their plugin project using CMake.

Prerequisites

  • CMake 3.14+
  • Ninja (recommended) or Xcode/Visual Studio
  • Plugin SDKs downloaded (VST3, CLAP, etc.) via /setup-deps

Quick Start

cd [ProjectFolder]
mkdir -p build && cd build
cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
cmake --build .

Generators

GeneratorCommandPlatformNotes
Ninja-G NinjamacOS, WindowsFast, recommended
Xcode-G XcodemacOS, iOS, visionOSMulti-config, good for debugging
Visual Studio-G "Visual Studio 17 2022" -A x64WindowsMulti-config

Build Commands

Configure (choose one):

cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..          # Ninja
cmake -G Xcode ..                                      # Xcode
cmake -G "Visual Studio 17 2022" -A x64 ..             # VS 2022

Build all targets:

cmake --build . --config Release

Build specific target:

cmake --build . --config Release --target [PluginName]-vst3

Target Suffixes

FormatTarget Suffix
Standalone App-app
VST2-vst2
VST3-vst3
CLAP-clap
AAX-aax
AUv2-au

Common Options

# Debug build
-DCMAKE_BUILD_TYPE=Debug

# Release build
-DCMAKE_BUILD_TYPE=Release

# Universal binaries (macOS)
-DIPLUG2_UNIVERSAL=ON

# IGraphics backend
-DIGRAPHICS_BACKEND=SKIA -DIGRAPHICS_RENDERER=METAL

# Debug host for plugins
-DIPLUG2_DEBUG_HOST="/Applications/REAPER.app"

Platform-Specific

iOS Device:

cmake -G Xcode -DCMAKE_SYSTEM_NAME=iOS -DIPLUG2_IOS_PLATFORM=OS ..

iOS Simulator:

cmake -G Xcode -DCMAKE_SYSTEM_NAME=iOS -DIPLUG2_IOS_PLATFORM=SIMULATOR ..

visionOS:

cmake -G Xcode -DCMAKE_SYSTEM_NAME=iOS -DIPLUG2_IOS_PLATFORM=VISIONOS ..

Web (Emscripten):

emcmake cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ..
cmake --build . --target [PluginName]-wam

Build Output

Output goes to build/out/:

  • [PluginName].app - Standalone
  • [PluginName].vst3/ - VST3
  • [PluginName].clap/ - CLAP
  • [PluginName].component/ - AUv2
  • [PluginName].aaxplugin/ - AAX

Workflow

  1. Ask for build preferences:

    • Generator (Ninja/Xcode/VS)
    • Configuration (Debug/Release)
    • Specific target or all
    • IGraphics backend if relevant
  2. Configure if needed (only once per build directory)

  3. Build the requested target(s)

  4. Report output location from build/out/

Tips

  • Ninja is fastest for iterative development
  • Xcode generator required for Swift examples (IPlugSwiftUI, IPlugCocoaUI)
  • Use --target to build specific formats and avoid SDK-related failures
  • Check Documentation/cmake.md for full reference

When not to use it

  • When building projects that do not use the iPlug2 framework
  • For small scripts not requiring a full project build system

Prerequisites

CMake 3.14+Ninja, Xcode, or Visual StudioPlugin SDKs (VST3, CLAP)

Limitations

  • Requires specific SDKs to be installed on the local host machine
  • Target generation is restricted to the supported iPlug2 formats

How it compares

Automates the translation of complex iPlug2 dependency requirements into specific compiler flags, bypassing manual configuration management.

Compared to similar skills

build-cmake side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
build-cmake (this skill)27moReviewIntermediate
dev26moReviewAdvanced
upgrade-deps04moReviewAdvanced
testing02moReviewAdvanced

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