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      1 # Returns the host triple.
      2 # Invokes config.guess
      3 
      4 function( get_host_triple var )
      5   if( MSVC )
      6     if( CMAKE_CL_64 )
      7       set( value "x86_64-pc-win32" )
      8     else()
      9       set( value "i686-pc-win32" )
     10     endif()
     11   elseif( MINGW AND NOT MSYS )
     12     if( CMAKE_SIZEOF_VOID_P EQUAL 8 )
     13       set( value "x86_64-w64-mingw32" )
     14     else()
     15       set( value "i686-pc-mingw32" )
     16     endif()
     17   else( MSVC )
     18     set(config_guess ${LLVM_MAIN_SRC_DIR}/autoconf/config.guess)
     19     execute_process(COMMAND sh ${config_guess}
     20       RESULT_VARIABLE TT_RV
     21       OUTPUT_VARIABLE TT_OUT
     22       OUTPUT_STRIP_TRAILING_WHITESPACE)
     23     if( NOT TT_RV EQUAL 0 )
     24       message(FATAL_ERROR "Failed to execute ${config_guess}")
     25     endif( NOT TT_RV EQUAL 0 )
     26     set( value ${TT_OUT} )
     27   endif( MSVC )
     28   set( ${var} ${value} PARENT_SCOPE )
     29   message(STATUS "Target triple: ${value}")
     30 endfunction( get_host_triple var )
     31