message: Add NetBSD support in Host::GetCurrentThreadID
  Summary:
  To retrieve the native thread ID there must be called _lwp_self().
  Sponsored by <The NetBSD Foundation>
  Reviewers: joerg, clayborg, emaste, labath
  Subscribers: #lldb
  Tags: #lldb
diff: #include <pthread_np.h>
  #endif
  +#if defined(__NetBSD__)
  +#include <lwp.h>
  +#endif
  +
  // C++ Includes
  // Other libraries and framework includes
  @@ -320,6 +324,8 @@ lldb::tid_t Host::GetCurrentThreadID() {
  return thread_self;
  #elif defined(__FreeBSD__)
  return lldb::tid_t(pthread_getthreadid_np());
  +#elif defined(__NetBSD__)
  + return lldb::tid_t(_lwp_self());
  #elif defined(__ANDROID__)
  return lldb::tid_t(gettid());
  #elif defined(__linux__)
  