message: FreeBSD identifies as 'amd64', need to support this
diff: @@ -45,7 +45,7 @@ set(ISPC_BUILD TRUE)
  project(${PROJECT_NAME})
  set(X86_HOST FALSE)
  -if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "AMD64|86")
  +if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "amd64|AMD64|86")
  set(X86_HOST TRUE)
  endif()
  