313 lines
9.4 KiB
CMake
313 lines
9.4 KiB
CMake
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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cmake_policy(PUSH)
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cmake_policy(SET CMP0057 NEW) # if IN_LIST
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# Function to print messages of this module
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function(_ios_install_combined_message)
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message("[iOS combined] " ${ARGN})
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endfunction()
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# Get build settings for the current target/config/SDK by running
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# `xcodebuild -sdk ... -showBuildSettings` and parsing it's output
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function(_ios_install_combined_get_build_setting sdk variable resultvar)
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if("${sdk}" STREQUAL "")
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message(FATAL_ERROR "`sdk` is empty")
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endif()
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if("${variable}" STREQUAL "")
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message(FATAL_ERROR "`variable` is empty")
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endif()
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if("${resultvar}" STREQUAL "")
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message(FATAL_ERROR "`resultvar` is empty")
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endif()
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set(
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cmd
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xcodebuild -showBuildSettings
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-sdk "${sdk}"
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-target "${CURRENT_TARGET}"
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-config "${CURRENT_CONFIG}"
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)
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execute_process(
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COMMAND ${cmd}
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WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
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RESULT_VARIABLE result
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OUTPUT_VARIABLE output
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)
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if(NOT result EQUAL 0)
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message(FATAL_ERROR "Command failed (${result}): ${cmd}")
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endif()
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if(NOT output MATCHES " ${variable} = ([^\n]*)")
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if("${variable}" STREQUAL "VALID_ARCHS")
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# VALID_ARCHS may be unset by user for given SDK
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# (e.g. for build without simulator).
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set("${resultvar}" "" PARENT_SCOPE)
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return()
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else()
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message(FATAL_ERROR "${variable} not found.")
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endif()
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endif()
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set("${resultvar}" "${CMAKE_MATCH_1}" PARENT_SCOPE)
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endfunction()
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# Get architectures of given SDK (iphonesimulator/iphoneos)
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function(_ios_install_combined_get_valid_archs sdk resultvar)
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cmake_policy(PUSH)
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cmake_policy(SET CMP0007 NEW)
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if("${resultvar}" STREQUAL "")
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message(FATAL_ERROR "`resultvar` is empty")
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endif()
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_ios_install_combined_get_build_setting("${sdk}" "VALID_ARCHS" valid_archs)
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separate_arguments(valid_archs)
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list(REMOVE_ITEM valid_archs "") # remove empty elements
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list(REMOVE_DUPLICATES valid_archs)
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string(REPLACE ";" " " printable "${valid_archs}")
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_ios_install_combined_message("Architectures (${sdk}): ${printable}")
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set("${resultvar}" "${valid_archs}" PARENT_SCOPE)
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cmake_policy(POP)
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endfunction()
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# Final target can contain more architectures that specified by SDK. This
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# function will run 'lipo -info' and parse output. Result will be returned
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# as a CMake list.
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function(_ios_install_combined_get_real_archs filename resultvar)
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set(cmd "${_lipo_path}" -info "${filename}")
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execute_process(
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COMMAND ${cmd}
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RESULT_VARIABLE result
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OUTPUT_VARIABLE output
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ERROR_VARIABLE output
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_STRIP_TRAILING_WHITESPACE
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)
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if(NOT result EQUAL 0)
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message(
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FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}"
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)
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endif()
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if(NOT output MATCHES "(Architectures in the fat file: [^\n]+ are|Non-fat file: [^\n]+ is architecture): ([^\n]*)")
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message(FATAL_ERROR "Could not detect architecture from: ${output}")
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endif()
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separate_arguments(CMAKE_MATCH_2)
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set(${resultvar} ${CMAKE_MATCH_2} PARENT_SCOPE)
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endfunction()
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# Run build command for the given SDK
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function(_ios_install_combined_build sdk)
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if("${sdk}" STREQUAL "")
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message(FATAL_ERROR "`sdk` is empty")
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endif()
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_ios_install_combined_message("Build `${CURRENT_TARGET}` for `${sdk}`")
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execute_process(
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COMMAND
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"${CMAKE_COMMAND}"
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--build
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.
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--target "${CURRENT_TARGET}"
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--config ${CURRENT_CONFIG}
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--
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-sdk "${sdk}"
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WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
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RESULT_VARIABLE result
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)
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if(NOT result EQUAL 0)
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message(FATAL_ERROR "Build failed")
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endif()
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endfunction()
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# Remove given architecture from file. This step needed only in rare cases
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# when target was built in "unusual" way. Emit warning message.
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function(_ios_install_combined_remove_arch lib arch)
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_ios_install_combined_message(
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"Warning! Unexpected architecture `${arch}` detected and will be removed "
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"from file `${lib}`")
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set(cmd "${_lipo_path}" -remove ${arch} -output ${lib} ${lib})
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execute_process(
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COMMAND ${cmd}
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RESULT_VARIABLE result
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OUTPUT_VARIABLE output
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ERROR_VARIABLE output
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_STRIP_TRAILING_WHITESPACE
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)
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if(NOT result EQUAL 0)
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message(
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FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}"
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)
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endif()
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endfunction()
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# Check that 'lib' contains only 'archs' architectures (remove others).
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function(_ios_install_combined_keep_archs lib archs)
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_ios_install_combined_get_real_archs("${lib}" real_archs)
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set(archs_to_remove ${real_archs})
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list(REMOVE_ITEM archs_to_remove ${archs})
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foreach(x ${archs_to_remove})
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_ios_install_combined_remove_arch("${lib}" "${x}")
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endforeach()
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endfunction()
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function(_ios_install_combined_detect_sdks this_sdk_var corr_sdk_var)
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set(this_sdk "$ENV{PLATFORM_NAME}")
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if("${this_sdk}" STREQUAL "")
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message(FATAL_ERROR "Environment variable PLATFORM_NAME is empty")
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endif()
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set(all_platforms "$ENV{SUPPORTED_PLATFORMS}")
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if("${all_platforms}" STREQUAL "")
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message(FATAL_ERROR "Environment variable SUPPORTED_PLATFORMS is empty")
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endif()
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separate_arguments(all_platforms)
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if(NOT this_sdk IN_LIST all_platforms)
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message(FATAL_ERROR "`${this_sdk}` not found in `${all_platforms}`")
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endif()
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list(REMOVE_ITEM all_platforms "" "${this_sdk}")
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list(LENGTH all_platforms all_platforms_length)
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if(NOT all_platforms_length EQUAL 1)
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message(FATAL_ERROR "Expected one element: ${all_platforms}")
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endif()
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set(${this_sdk_var} "${this_sdk}" PARENT_SCOPE)
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set(${corr_sdk_var} "${all_platforms}" PARENT_SCOPE)
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endfunction()
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# Create combined binary for the given target.
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#
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# Preconditions:
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# * Target already installed at ${destination}
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# for the ${PLATFORM_NAME} platform
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#
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# This function will:
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# * Run build for the lacking platform, i.e. opposite to the ${PLATFORM_NAME}
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# * Fuse both libraries by running lipo
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function(ios_install_combined target destination)
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if("${target}" STREQUAL "")
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message(FATAL_ERROR "`target` is empty")
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endif()
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if("${destination}" STREQUAL "")
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message(FATAL_ERROR "`destination` is empty")
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endif()
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if(NOT IS_ABSOLUTE "${destination}")
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message(FATAL_ERROR "`destination` is not absolute: ${destination}")
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endif()
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if(IS_DIRECTORY "${destination}" OR IS_SYMLINK "${destination}")
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message(FATAL_ERROR "`destination` is no regular file: ${destination}")
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endif()
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if("${CMAKE_BINARY_DIR}" STREQUAL "")
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message(FATAL_ERROR "`CMAKE_BINARY_DIR` is empty")
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endif()
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if(NOT IS_DIRECTORY "${CMAKE_BINARY_DIR}")
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message(FATAL_ERROR "Is not a directory: ${CMAKE_BINARY_DIR}")
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endif()
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if("${CMAKE_INSTALL_CONFIG_NAME}" STREQUAL "")
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message(FATAL_ERROR "CMAKE_INSTALL_CONFIG_NAME is empty")
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endif()
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set(cmd xcrun -f lipo)
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# Do not merge OUTPUT_VARIABLE and ERROR_VARIABLE since latter may contain
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# some diagnostic information even for the successful run.
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execute_process(
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COMMAND ${cmd}
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RESULT_VARIABLE result
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OUTPUT_VARIABLE output
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ERROR_VARIABLE error_output
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_STRIP_TRAILING_WHITESPACE
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)
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if(NOT result EQUAL 0)
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message(
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FATAL_ERROR "Command failed (${result}): ${cmd}\n\nOutput:\n${output}\nOutput(error):\n${error_output}"
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)
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endif()
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set(_lipo_path ${output})
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list(LENGTH _lipo_path len)
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if(NOT len EQUAL 1)
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message(FATAL_ERROR "Unexpected xcrun output: ${_lipo_path}")
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endif()
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if(NOT EXISTS "${_lipo_path}")
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message(FATAL_ERROR "File not found: ${_lipo_path}")
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endif()
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set(CURRENT_CONFIG "${CMAKE_INSTALL_CONFIG_NAME}")
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set(CURRENT_TARGET "${target}")
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_ios_install_combined_message("Target: ${CURRENT_TARGET}")
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_ios_install_combined_message("Config: ${CURRENT_CONFIG}")
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_ios_install_combined_message("Destination: ${destination}")
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# Get SDKs
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_ios_install_combined_detect_sdks(this_sdk corr_sdk)
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# Get architectures of the target
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_ios_install_combined_get_valid_archs("${corr_sdk}" corr_valid_archs)
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_ios_install_combined_get_valid_archs("${this_sdk}" this_valid_archs)
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# Return if there are no valid architectures for the SDK.
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# (note that library already installed)
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if("${corr_valid_archs}" STREQUAL "")
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_ios_install_combined_message(
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"No architectures detected for `${corr_sdk}` (skip)"
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)
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return()
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endif()
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# Trigger build of corresponding target
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_ios_install_combined_build("${corr_sdk}")
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# Get location of the library in build directory
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_ios_install_combined_get_build_setting(
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"${corr_sdk}" "CONFIGURATION_BUILD_DIR" corr_build_dir)
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_ios_install_combined_get_build_setting(
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"${corr_sdk}" "EXECUTABLE_PATH" corr_executable_path)
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set(corr "${corr_build_dir}/${corr_executable_path}")
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_ios_install_combined_keep_archs("${corr}" "${corr_valid_archs}")
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_ios_install_combined_keep_archs("${destination}" "${this_valid_archs}")
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_ios_install_combined_message("Current: ${destination}")
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_ios_install_combined_message("Corresponding: ${corr}")
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set(cmd "${_lipo_path}" -create ${corr} ${destination} -output ${destination})
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execute_process(
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COMMAND ${cmd}
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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RESULT_VARIABLE result
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)
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if(NOT result EQUAL 0)
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message(FATAL_ERROR "Command failed: ${cmd}")
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endif()
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_ios_install_combined_message("Install done: ${destination}")
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endfunction()
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cmake_policy(POP)
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