musl/src/thread/pthread_mutexattr_setpshared.c

#include "pthread_impl.h"

int pthread_mutexattr_setpshared(pthread_mutexattr_t *a, int pshared)
{
	if (pshared > 1U) return EINVAL;
	a->__attr &= 0x7fffffff;
	a->__attr |= pshared<<31;
	return 0;
}