commit - 78b5635d698a1d278fade51856e51520046261fc
commit + be9e0e98579e6dec33814f1074d22943eb87ef2b
blob - ee0b276e0c2f2f448e49c6a3874c2fe7d5387b1a
blob + 750aa65c728eb7243beb8c562aab9efec1731a5b
--- man/man3/open.3
+++ man/man3/open.3
@@ -159,3 +159,14 @@ The implementation of
 .B ORCLOSE
 is to unlink the file after opening it, causing problems
 in programs that try to access the file by name before it is closed.
+.PP
+To avoid name conflicts with the underlying system,
+.I open
+and
+.I create
+are preprocessor macros defined as
+.IR p9open
+and
+.IR p9create ;
+see
+.IR intro (3).