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Kitware
GitHub Repository: Kitware/CMake
 Path: blob/master/Tests/Architecture/CMakeLists.txt
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cmake_minimum_required(VERSION 3.10)

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project(Architecture C)

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if (CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 12)

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  # Since Xcode 12 we have two architectures again: arm64 and x86_64.

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  set(arch0 x86_64)

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  set(arch1 arm64)

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elseif(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 10)

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  # Xcode 10 / 11 do not have two supported architectures for the host.

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  message(STATUS "Skip test x86_64 only")

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  return()

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elseif(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 4)

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  # Xcode 4 no longer supports ppc, but does support x86_64.

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  set(arch0 i386)

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  set(arch1 x86_64)

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else()

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  set(arch0 i386)

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  set(arch1 ppc)

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endif()

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add_library(foo foo.c)

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if(CMAKE_OSX_ARCHITECTURES)

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  get_property(archs TARGET foo PROPERTY OSX_ARCHITECTURES)

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  if(NOT "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "${archs}")

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    message(FATAL_ERROR

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      "OSX_ARCHITECTURES property not initialized by CMAKE_OSX_ARCHITECTURES.\n"

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      "Expected [${CMAKE_OSX_ARCHITECTURES}], got [${archs}]."

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      )

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  endif()

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  list(LENGTH archs archs_len)

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  if(archs_len GREATER 1)

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    list(GET archs 0 arch0)

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    list(GET archs 1 arch1)

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  endif()

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endif()

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message("archs='${archs}'")

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message("arch0='${arch0}'")

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message("arch1='${arch1}'")

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set_property(TARGET foo PROPERTY OSX_ARCHITECTURES ${arch0})

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set_property(TARGET foo PROPERTY OSX_ARCHITECTURES_DEBUG ${arch1})

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add_executable(bar bar.c)

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target_link_libraries(bar foo)

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set_property(TARGET bar PROPERTY OUTPUT_NAME Architecture)

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set_property(TARGET bar PROPERTY OSX_ARCHITECTURES ${arch1})

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set_property(TARGET bar PROPERTY OSX_ARCHITECTURES_DEBUG ${arch0})

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