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37 lines
1.8 KiB
CMake
37 lines
1.8 KiB
CMake
# This function forces the Swift compiler to rebuild 'Swift' and 'CxxStdlib'
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# from .swiftinterface files. This is useful when cross-compiling, when the
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# host compiler version is different than the Swift version on the linux
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# target container.
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function(swift_force_import_rebuild_of_stdlib)
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message(STATUS "Making sure Swift builtin modules are up-to-date...")
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string(REPLACE " " ";" Swift_FLAGS_LIST ${CMAKE_Swift_FLAGS})
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set(Rebuilt_Swift_FLAGS_LIST)
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foreach (flag ${Swift_FLAGS_LIST})
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if ("${flag}" STREQUAL "-resource-dir")
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list(APPEND Rebuilt_Swift_FLAGS_LIST "-Xfrontend" ${flag} "-Xfrontend")
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else()
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list(APPEND Rebuilt_Swift_FLAGS_LIST ${flag})
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endif()
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endforeach()
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list(APPEND Rebuilt_Swift_FLAGS_LIST "-Xfrontend" "-strict-implicit-module-context")
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file(WRITE "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildStdlib.swift" "import Swift")
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execute_process(COMMAND "${CMAKE_Swift_COMPILER}" -c -o "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildStdlib.o" ${Rebuilt_Swift_FLAGS_LIST} "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildStdlib.swift"
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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RESULT_VARIABLE
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CanSwiftImportSwift
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)
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if (NOT ${CanSwiftImportSwift} EQUAL 0)
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message(FATAL_ERROR "Swift couldn't import/rebuild standard library.")
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endif()
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file(WRITE "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildCxxStdlib.swift" "import CxxStdlib")
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execute_process(COMMAND "${CMAKE_Swift_COMPILER}" -c -o "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildCxxStdlib.o" ${Rebuilt_Swift_FLAGS_LIST} "${CMAKE_BINARY_DIR}/CMakeTmp/rebuildCxxStdlib.swift"
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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RESULT_VARIABLE
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CanSwiftImportSwiftCxxStdlib
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)
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if (NOT ${CanSwiftImportSwiftCxxStdlib} EQUAL 0)
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message(FATAL_ERROR "Swift couldn't import/rebuild C++ standard library.")
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endif()
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endfunction()
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