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cmake_minimum_required(VERSION 3.5)
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project(Architecture C)
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function(test_for_xcode4 result_var)
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set(${result_var} 0 PARENT_SCOPE)
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if(APPLE)
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execute_process(COMMAND xcodebuild -version
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OUTPUT_VARIABLE ov RESULT_VARIABLE rv
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)
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if("${rv}" STREQUAL "0" AND ov MATCHES "^Xcode ([0-9]+)\\.")
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if(NOT CMAKE_MATCH_1 VERSION_LESS 4)
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set(${result_var} 1 PARENT_SCOPE)
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endif()
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endif()
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endif()
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endfunction()
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test_for_xcode4(is_xcode4)
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set(arch0 i386)
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set(arch1 ppc)
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if(is_xcode4)
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# Xcode 4, use modern architectures as defaults
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# Arch 'ppc' no longer works: tools no longer available starting with Xcode 4
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set(arch0 i386)
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set(arch1 x86_64)
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endif()
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add_library(foo foo.c)
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if(CMAKE_OSX_ARCHITECTURES)
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get_property(archs TARGET foo PROPERTY OSX_ARCHITECTURES)
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if(NOT "${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 [${archs}]."
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)
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endif()
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list(LENGTH archs archs_len)
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if(archs_len GREATER 1)
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list(GET archs 0 arch0)
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list(GET archs 1 arch1)
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endif()
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endif()
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message("is_xcode4='${is_xcode4}'")
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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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