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cmake_minimum_required(VERSION 3.7)
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project (CudaOnlyWithDefs CUDA)
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#verify that we can pass explicit cuda arch flags
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string(APPEND CMAKE_CUDA_FLAGS " -gencode arch=compute_30,code=compute_30")
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set(debug_compile_flags --generate-code arch=compute_20,code=sm_20)
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if(CMAKE_CUDA_SIMULATE_ID STREQUAL "MSVC")
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list(APPEND debug_compile_flags -Xcompiler=-WX)
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else()
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list(APPEND debug_compile_flags -Xcompiler=-Werror)
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endif()
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set(release_compile_defs DEFREL)
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#Goal for this example:
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#build a executable that needs to be passed a complex define through add_defintions
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#this verifies we can pass things such as '_','(' to nvcc
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add_definitions("-DPACKED_DEFINE=__attribute__((packed))")
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if(CMAKE_GENERATOR MATCHES "Visual Studio")
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# CUDA MSBuild rules do not pass '-x cu' to nvcc
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set(main main_for_vs.cu)
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else()
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set(main main.notcu)
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set_source_files_properties(main.notcu PROPERTIES LANGUAGE CUDA)
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endif()
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add_executable(CudaOnlyWithDefs ${main})
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target_compile_options(CudaOnlyWithDefs
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PRIVATE
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-Xcompiler=-DHOST_DEFINE
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$<$<CONFIG:DEBUG>:$<BUILD_INTERFACE:${debug_compile_flags}>>
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)
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target_compile_definitions(CudaOnlyWithDefs
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PRIVATE
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$<$<CONFIG:RELEASE>:$<BUILD_INTERFACE:${release_compile_defs}>>
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)
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#we need to add an rpath for the cuda library so that everything
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#loads properly on the mac
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if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
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set_target_properties(CudaOnlyWithDefs PROPERTIES LINK_FLAGS "-Wl,-rpath,${CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES}")
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endif()
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