Golang Cgo：恐慌：运行时错误：cgo参数具有指向Go指针的Go指针

I am working with a C library that, unlike below, I do not control. I need to pass to a C function a pointer to an array that also contains pointers.

package main

/*
#include <stdio.h>

typedef int* pInt;

void foo(pInt p[]) {
  printf("foo()
");
}
*/
import "C"
import "unsafe"

func main() {
    var i C.int
    var p1 C.pInt = (*C.int)(unsafe.Pointer(&i))
    var p2 C.pInt = (*C.int)(unsafe.Pointer(&i))
    var ps []C.pInt = []C.pInt{p1, p2}
    C.foo(unsafe.Pointer(&ps[0]))
}

panic: runtime error: cgo argument has Go pointer to Go pointer