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-rw-r--r--man/man2/fcntl.26
-rw-r--r--man/man2/open.24
2 files changed, 10 insertions, 0 deletions
diff --git a/man/man2/fcntl.2 b/man/man2/fcntl.2
index bf26059294..b5ace140c5 100644
--- a/man/man2/fcntl.2
+++ b/man/man2/fcntl.2
@@ -1769,6 +1769,12 @@ but
was not open for writing
or the current set of seals on the file already includes
.BR F_SEAL_SEAL .
+.SH VERSIONS
+POSIX.1-2024 specifies
+.B FD_CLOFORK
+and
+.BR F_DUPFD_CLOFORK ,
+but Linux doesn't support them.
.SH STANDARDS
POSIX.1-2008.
.P
diff --git a/man/man2/open.2 b/man/man2/open.2
index 0f24f5fb8e..237b671d4c 100644
--- a/man/man2/open.2
+++ b/man/man2/open.2
@@ -1385,6 +1385,10 @@ system call, rather than the kernel's
system call.
For certain architectures, this is also true before glibc 2.26.
.\"
+.SS POSIX
+POSIX.1-2024 specifies
+.BR O_CLOFORK ,
+but Linux doesn't support it.
.SH STANDARDS
.TP
.BR open ()