(svn r3138) -Fix: [clone vehicles] fixed assert when it was possible to allocate some vehicles to clone a train, but not for all cars
Now it gives "too many vehicles" error message instead
To make this work, AllocateVehicles() needed to be moved to vehicle.c (from aircraft_cmd.c) and made non-static

/* $Id$ */

#ifndef THREAD_H
#define THREAD_H

typedef struct Thread Thread;

typedef void* (*ThreadFunc)(void*);

Thread* OTTDCreateThread(ThreadFunc, void*);
void*   OTTDJoinThread(Thread*);

#endif /* THREAD_H */