int aaa;           // external linkage (file scope, static storage duration)
static int bbb;    // internal linkage (file scope, static storage duration)

int drop(int ccc) // (ccc) no linkage (block scope, automatic storage duration)
{
  int ddd;         // no linkage (block scope, automatic storage duration)
  static int eee;  // no linkage (block scope, static storage duration)
    ...
}