mirror of
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86578eccf2
Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
308 lines
9.3 KiB
CMake
308 lines
9.3 KiB
CMake
# 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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# 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(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}" "${valid_archs}" PARENT_SCOPE)
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endfunction()
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# Final target can contain more architectures that specified by SDK. This
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# function will run 'lipo -info' and parse output. Result will be returned
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# as a CMake list.
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function(_ios_install_combined_get_real_archs filename resultvar)
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set(cmd "${_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}" "${x}")
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endforeach()
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endfunction()
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function(_ios_install_combined_detect_sdks this_sdk_var corr_sdk_var)
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cmake_policy(SET CMP0057 NEW)
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set(this_sdk "$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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