File: TargetTriple.cmake

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# This source file is part of the Swift.org open source project
#
# Copyright (c) 2024 Apple Inc. and the Swift project authors
# Licensed under Apache License v2.0 with Runtime Library Exception
#
# See http://swift.org/LICENSE.txt for license information
# See http://swift.org/CONTRIBUTORS.txt for Swift project authors

# Ask the Swift compiler what target triple it will be compiling with today.
set(SWT_TARGET_INFO_COMMAND "${CMAKE_Swift_COMPILER}" -print-target-info)
if(CMAKE_Swift_COMPILER_TARGET)
  list(APPEND SWT_TARGET_INFO_COMMAND -target ${CMAKE_Swift_COMPILER_TARGET})
endif()
execute_process(COMMAND ${SWT_TARGET_INFO_COMMAND} OUTPUT_VARIABLE SWT_TARGET_INFO_JSON)
string(JSON SWT_TARGET_TRIPLE GET "${SWT_TARGET_INFO_JSON}" "target" "unversionedTriple")

# All done!
message(STATUS "Swift Testing target triple: ${SWT_TARGET_TRIPLE}")
if(SWT_TARGET_TRIPLE)
  add_compile_definitions(
    "$<$<COMPILE_LANGUAGE:CXX>:SWT_TARGET_TRIPLE=\"${SWT_TARGET_TRIPLE}\">")
endif()