(svn r3011) Refix last revision's fix of VS6 which broke compilation on MinGW. Also beautify stdafx.h with nice indentation and comments after big #ifdef blocks. Hope it didn't break compilation on any OS's.
/* $Id$ */
#ifndef THREAD_H
#define THREAD_H
typedef struct Thread Thread;
typedef void* (*ThreadFunc)(void*);
Thread* OTTDCreateThread(ThreadFunc, void*);
void* OTTDJoinThread(Thread*);
#endif /* THREAD_H */