a026207a2d
- Modified CMake settings to ensure consistent use of the Homebrew LLVM/Clang installation on macOS. - Added a new toolchain file to specify the correct compiler and header search paths, resolving potential conflicts. - Updated CMake presets to enable the EMU build and set appropriate compiler flags. Benefits: - Enhances build reliability and compatibility on macOS by utilizing the Homebrew LLVM toolchain. - Streamlines the build process with improved configuration management.
45 lines
1.7 KiB
CMake
45 lines
1.7 KiB
CMake
# cmake/toolchains/homebrew-llvm.toolchain.cmake
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#
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# CMake Toolchain File for using the Homebrew LLVM/Clang installation on macOS.
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# This ensures that the main project and all dependencies (like gRPC) use the
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# correct compiler and header search paths.
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# 1. Set the target system (macOS)
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set(CMAKE_SYSTEM_NAME Darwin)
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# 2. Find the Homebrew LLVM installation path
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# We use execute_process to make this portable across machine architectures.
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execute_process(
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COMMAND brew --prefix llvm@18
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OUTPUT_VARIABLE HOMEBREW_LLVM_PREFIX
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT EXISTS "${HOMEBREW_LLVM_PREFIX}")
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message(FATAL_ERROR "Homebrew LLVM not found. Please run 'brew install llvm'. Path: ${HOMEBREW_LLVM_PREFIX}")
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endif()
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message(STATUS "Using Homebrew LLVM from: ${HOMEBREW_LLVM_PREFIX}")
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# 3. Set the C and C++ compilers
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set(CMAKE_C_COMPILER "${HOMEBREW_LLVM_PREFIX}/bin/clang")
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set(CMAKE_CXX_COMPILER "${HOMEBREW_LLVM_PREFIX}/bin/clang++")
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# 4. Set the system root (sysroot) to the macOS SDK
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# This correctly points to the system-level headers and libraries.
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execute_process(
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COMMAND xcrun --show-sdk-path
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OUTPUT_VARIABLE CMAKE_OSX_SYSROOT
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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set(CMAKE_SYSROOT "${CMAKE_OSX_SYSROOT}")
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message(STATUS "Using macOS SDK at: ${CMAKE_SYSROOT}")
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# 5. **[THE CRITICAL FIX]** Explicitly define the C++ standard library include directory.
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# This forces CMake to add Homebrew's libc++ headers to the search path *before*
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# any other system paths, resolving the header conflict for the main project
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# and all dependencies.
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set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES "${HOMEBREW_LLVM_PREFIX}/include/c++/v1")
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# 6. Set the default installation path for macOS frameworks
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set(CMAKE_FIND_FRAMEWORK FIRST) |