PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for OSF1.");
PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Linux.");
_MD_CREATE_THREAD(    PRThread *thread,    void (*start) (void *),    PRThreadPriority priority,    PRThreadScope scope,    PRThreadState state,    PRUint32 stackSize){    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for OSF1.");	return PR_FAILURE;}