wehub-resource-sync
64 lines
3.6 KiB
CMake
64 lines
3.6 KiB
CMake
# GCC and Clang flags for C++ template duplicate instantiation issues
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cmake_minimum_required(VERSION 3.15)
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if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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# For C++ template duplicate instantiation errors
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if(NOT SD_CUDA)
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add_compile_options(-fpermissive)
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add_compile_options(-ftemplate-depth=1024)
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add_compile_options(-fno-gnu-unique)
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message(STATUS "Added -fpermissive: Allows duplicate template instantiations")
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message(STATUS "Added template-related flags for C++ duplicate handling")
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else()
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# Also set CXX flags for host compilation
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive -Wno-error")
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message(STATUS "Added CUDA-specific compiler flags for duplicate template instantiations")
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message(STATUS "Added --disable-warnings to suppress NVCC errors")
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endif()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
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# For Clang template duplicate instantiation handling
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if(NOT SD_CUDA)
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# Template instantiation depth
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add_compile_options(-ftemplate-depth=1024)
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# Check if this is an Android build
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if(ANDROID OR CMAKE_SYSTEM_NAME STREQUAL "Android")
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# Android NDK specific handling - be more permissive like GCC
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add_compile_options(-Wno-error)
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add_compile_options(-Wno-duplicate-decl-specifier)
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add_compile_options(-Wno-unused-command-line-argument)
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add_compile_options(-ffunction-sections)
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add_compile_options(-fdata-sections)
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# Android linker doesn't support ICF well, use basic folding
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections")
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message(STATUS "Added Android-specific Clang flags for duplicate template handling")
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else()
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# Desktop Clang with full template folding support
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add_compile_options(-ffunction-sections)
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add_compile_options(-fdata-sections)
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add_compile_options(-fmerge-all-constants)
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add_compile_options(-fno-unique-section-names)
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# Use LLD linker for better template folding support
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add_compile_options(-fuse-ld=lld)
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# Linker flags for identical code folding (ICF)
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--icf=all -Wl,--gc-sections")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--icf=all -Wl,--gc-sections")
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message(STATUS "Added desktop Clang template folding with LLD linker")
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endif()
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else()
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# CUDA with Clang
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if(ANDROID OR CMAKE_SYSTEM_NAME STREQUAL "Android")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-depth=1024 -Wno-error -Wno-duplicate-decl-specifier")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections")
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message(STATUS "Added Android CUDA-specific Clang flags")
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else()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-depth=1024 -ffunction-sections -fdata-sections")
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set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} -Xcompiler=-ffunction-sections -Xcompiler=-fdata-sections")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld -Wl,--icf=all")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=lld -Wl,--icf=all")
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message(STATUS "Added desktop CUDA-specific Clang template folding")
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endif()
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endif()
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endif() |