thread-utils.h
#ifndef THREAD_COMPAT_H
#define THREAD_COMPAT_H
#ifndef NO_PTHREADS
#include <pthread.h>
extern int online_cpus(void);
extern int init_recursive_mutex(pthread_mutex_t*);
#else
#define online_cpus() 1
#endif
#endif /* THREAD_COMPAT_H */