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      1 # Define functions to get the host and target triple.
      2 
      3 function(get_host_triple out out_arch out_vendor out_os)
      4   # Get the architecture.
      5   set(arch ${CMAKE_HOST_SYSTEM_PROCESSOR})
      6   if (arch STREQUAL "x86")
      7     set(arch "i686")
      8   endif()
      9   # Get the vendor.
     10   if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
     11     set(vendor "apple")
     12   else()
     13     set(vendor "pc")
     14   endif()
     15   # Get os.
     16   if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
     17     set(os "win32")
     18   else()
     19     string(TOLOWER ${CMAKE_HOST_SYSTEM_NAME} os)
     20   endif()
     21   set(triple "${arch}-${vendor}-${os}")
     22   set(${out} ${triple} PARENT_SCOPE)
     23   set(${out_arch} ${arch} PARENT_SCOPE)
     24   set(${out_vendor} ${vendor} PARENT_SCOPE)
     25   set(${out_os} ${os} PARENT_SCOPE)
     26   message(STATUS "Host triple: ${triple}")
     27 endfunction()
     28 
     29 function(get_target_triple out out_arch out_vendor out_os)
     30   # Get the architecture.
     31   set(arch ${CMAKE_SYSTEM_PROCESSOR})
     32   if (arch STREQUAL "x86")
     33     set(arch "i686")
     34   endif()
     35   # Get the vendor.
     36   if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
     37     set(vendor "apple")
     38   else()
     39     set(vendor "pc")
     40   endif()
     41   # Get os.
     42   if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
     43     set(os "win32")
     44   else()
     45     string(TOLOWER ${CMAKE_SYSTEM_NAME} os)
     46   endif()
     47   set(triple "${arch}-${vendor}-${os}")
     48   set(${out} ${triple} PARENT_SCOPE)
     49   set(${out_arch} ${arch} PARENT_SCOPE)
     50   set(${out_vendor} ${vendor} PARENT_SCOPE)
     51   set(${out_os} ${os} PARENT_SCOPE)
     52   message(STATUS "Target triple: ${triple}")
     53 endfunction()
     54