strerror() is provided by string.h, not error.h. Also error.h is not
present on FreeBSD, which causes the build to fail.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Id5e29df184c1f24659e15bc16c73da01fc819905
#include <pthread.h>
#include <errno.h>
#include <pthread.h>
#include <errno.h>
#include <urcu/tls-compat.h>
#include <lttng/ust-cancelstate.h>
#include <usterr-signal-safe.h>
#include <urcu/tls-compat.h>
#include <lttng/ust-cancelstate.h>
#include <usterr-signal-safe.h>