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fix: auto-detect Homebrew path for Intel vs Apple Silicon Macs

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This fixes the hardcoded /opt/homebrew path which only works on Apple
Silicon Macs. Intel Macs use /usr/local as the Homebrew prefix.
This commit is contained in:
Andy Lee
2025-08-09 23:16:04 +00:00
parent 368c587c4f
commit e16c369bfb
1 changed files with 12 additions and 3 deletions
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15
packages/leann-backend-hnsw/CMakeLists.txt
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@@ -5,11 +5,20 @@ set(CMAKE_CXX_COMPILER_WORKS 1)
# Set OpenMP path for macOS
if(APPLE)
set(OpenMP_C_FLAGS "-Xpreprocessor -fopenmp -I/opt/homebrew/opt/libomp/include")
set(OpenMP_CXX_FLAGS "-Xpreprocessor -fopenmp -I/opt/homebrew/opt/libomp/include")
# Detect Homebrew installation path (Apple Silicon vs Intel)
if(EXISTS "/opt/homebrew/opt/libomp")
set(HOMEBREW_PREFIX "/opt/homebrew")
elseif(EXISTS "/usr/local/opt/libomp")
set(HOMEBREW_PREFIX "/usr/local")
else()
message(FATAL_ERROR "Could not find libomp installation. Please install with: brew install libomp")
endif()
set(OpenMP_C_FLAGS "-Xpreprocessor -fopenmp -I${HOMEBREW_PREFIX}/opt/libomp/include")
set(OpenMP_CXX_FLAGS "-Xpreprocessor -fopenmp -I${HOMEBREW_PREFIX}/opt/libomp/include")
set(OpenMP_C_LIB_NAMES "omp")
set(OpenMP_CXX_LIB_NAMES "omp")
set(OpenMP_omp_LIBRARY "/opt/homebrew/opt/libomp/lib/libomp.dylib")
set(OpenMP_omp_LIBRARY "${HOMEBREW_PREFIX}/opt/libomp/lib/libomp.dylib")
# Force use of system libc++ to avoid version mismatch
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")