set(CPM_DOWNLOAD_VERSION 3b404296b539e596f39421c4e92bc803b299d964) # 0.27.5

if(CPM_SOURCE_CACHE)
  set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
elseif(DEFINED ENV{CPM_SOURCE_CACHE})
  set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
else()
  set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
endif()

if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
  message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
  file(DOWNLOAD
       https://raw.githubusercontent.com/TheLartians/CPM.cmake/${CPM_DOWNLOAD_VERSION}/cmake/CPM.cmake
       ${CPM_DOWNLOAD_LOCATION}
  )
endif()

include(${CPM_DOWNLOAD_LOCATION})