なんか落ちる (GoでOpenCLテスト)

cl.go

package main

// #include "CL/opencl.h"
// #cgo LDFLAGS: -lOpenCL 
import "C"
import (
  "log"
  "unsafe"
)

func main() {
  var id C.cl_platform_id
  err := C.clGetPlatformIDs(1, &id, nil)
  if err != C.CL_SUCCESS {
    log.Fatal("GetPlatformIDs Error code %d", err)
  }

  c := C.clCreateContextFromType(&[]C.cl_context_properties{
    C.CL_CONTEXT_PLATFORM,
    C.cl_context_properties(uintptr(unsafe.Pointer(id))),
    0,
  }[0], C.CL_DEVICE_TYPE_GPU, nil, nil, &err)
  if err != C.CL_SUCCESS {
    log.Fatal("createContext Error code %d", err)
  }
  defer C.clReleaseContext(c)
  
  log.Println(c, err)

}