Build Acceleration

Purpose

Guide agents through reducing C/C++ build times using caching (ccache/sccache), distributed compilation (distcc), unity/jumbo builds, precompiled headers, split-DWARF for faster linking, and include pruning with IWYU.

Triggers

• "My C++ build is too slow — how do I speed it up?"
• "How do I set up ccache / sccache?"
• "How do precompiled headers work with CMake?"
• "How do I set up distributed compilation with distcc?"
• "How do I reduce link times with split-DWARF?"
• "How do I find which headers are slowing down compilation?"

Workflow

1. Diagnose the bottleneck first