fix: remove hardcoded /opt/homebrew paths from DiskANN CMake

- Auto-detect Homebrew libomp path using OpenMP_ROOT environment variable
- Fallback to CMAKE_PREFIX_PATH/opt/libomp if OpenMP_ROOT not set
- Final fallback to brew --prefix libomp for auto-detection
- Maintains backwards compatibility with old hardcoded path
- Fixes Intel Mac builds that were failing due to hardcoded Apple Silicon paths

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Andy Lee
2025-08-09 18:29:56 -07:00
parent 1dfc2f3737
commit f009d2add3