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-rw-r--r--doc/zmq.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/zmq.txt b/doc/zmq.txt
index 2d7f1c8..d13f572 100644
--- a/doc/zmq.txt
+++ b/doc/zmq.txt
@@ -164,9 +164,12 @@ shall return either a NULL value (if returning a pointer) or a negative value
(if returning an integer), and the actual error code shall be stored in the
'errno' variable.
-A _zmq_strerror()_ function is provided to translate 0MQ-specific error codes
-into error message strings. For further details refer to
-linkzmq:zmq_strerror[3].
+On non-POSIX systems some users may experience issues with retrieving the
+correct value of the 'errno' variable. The _zmq_errno()_ function is provided
+to assist in these cases; for details refer to linkzmq:zmq_errno[3].
+
+The _zmq_strerror()_ function is provided to translate 0MQ-specific error codes
+into error message strings; for details refer to linkzmq:zmq_strerror[3].
MISCELLANEOUS