cmake build_error ai_generated true

CMake Error: unity build compilation failed

ID: cmake/unity-build-error

Also available as: JSON · Markdown
80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3 active — — —

Root Cause

CMake unity (jumbo) build failed due to symbol conflicts.

generic

Workarounds

  1. 88% success Exclude problematic files: set_source_files_properties(f PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON)
  2. 90% success Use anonymous namespaces to prevent symbol conflicts

Dead Ends

Common approaches that don't work:

  1. Disable unity build globally 68% fail

    Slower compilation

  2. Merge all sources into one file 78% fail

    Manual and unmaintainable