-- --
------------------------------------------------------------------------------
--- This package provides facilities for creation of foreign threads for
--- use as Ada tasks. In order to execute general Ada code, the run-time
--- system must know about all tasks. This package allows foreign code,
--- e.g. a C program, to create a thread that the Ada run-time knows about.
+-- This package provides facilities for creation or registration of foreign
+-- threads for use as Ada tasks. In order to execute general Ada code, the
+-- run-time system must know about all tasks. This package allows foreign
+-- code, e.g. a C program, to create a thread that the Ada run-time knows
+-- about, or to register the current thread.
+
+-- For some implementations of GNAT Pro, the registration of foreign threads
+-- is automatic. However, in such implementations, if the Ada program has no
+-- tasks at all and no tasking constructs other than delay, then by default
+-- the non-tasking version of the Ada run-time will be loaded. If foreign
+-- threads are present, it is important to ensure that the tasking version
+-- of the Ada run time is loaded. This may be achieved by adding "with
+-- GNAT.Threads" to any unit in the partition.
with System;
with Ada.Task_Identification;
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