-#include <limits.h>
-#include <unistd.h>
-
-#include "lttng-ust-abi.h"
-
-/*
- * ustcomm error code.
- */
-enum lttng_ust_error_code {
- LTTNG_UST_OK = 0, /* Ok */
- LTTNG_UST_ERR = 1024, /* Unknown Error */
- LTTNG_UST_ERR_NOENT = 1025, /* No entry */
- LTTNG_UST_ERR_EXIST = 1026, /* Object exists */
- LTTNG_UST_ERR_INVAL = 1027, /* Invalid argument */
- LTTNG_UST_ERR_PERM = 1028, /* Permission denied */
- LTTNG_UST_ERR_NOSYS = 1029, /* Not implemented */
- LTTNG_UST_ERR_EXITING = 1030, /* Process is exiting */
-
- LTTNG_UST_ERR_INVAL_MAGIC = 1031, /* Invalid magic number */
- LTTNG_UST_ERR_INVAL_SOCKET_TYPE = 1032, /* Invalid socket type */
- LTTNG_UST_ERR_UNSUP_MAJOR = 1033, /* Unsupported major version */
-
- /* MUST be last element */
- LTTNG_UST_ERR_NR, /* Last element */
-};
-
-/*
- * Return a human-readable error message for an lttng-ust error code.
- * code must be a positive value (or 0).
- */
-extern const char *lttng_ust_strerror(int code);
+#ifdef HAVE_LIBLTTNG_UST_CTL
+#include <lttng/ust-error.h>
+#else /* HAVE_LIBLTTNG_UST_CTL */
+/* Use local copy of the LTTng-UST header. */
+#include "ust-error-internal.h"
+#endif /* HAVE_LIBLTTNG_UST_CTL */