tools/cmake/Modules/FindThreads.cmake

#
# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# This is a wrapper hack purely so that we can use imported targets
# with cmake 2.8.12 and its supplied older modules

include(${CMAKE_ROOT}/Modules/FindThreads.cmake)

if(Threads_FOUND AND NOT TARGET Threads::Threads)
  add_library(Threads::Threads UNKNOWN IMPORTED)

  if(THREADS_HAVE_PTHREAD_ARG)
    set_target_properties(Threads::Threads
      PROPERTIES
        INTERFACE_COMPILE_OPTIONS "-pthread"
    )
  endif()

  if(CMAKE_THREAD_LIBS_INIT)
    set_target_properties(Threads::Threads
      PROPERTIES
        IMPORTED_LOCATION "${CMAKE_THREAD_LIBS_INIT}"
    )
  endif()
endif()