The marking matches glibc marking.
Signed-off-by: Ma Shimiao <mashimiao.fnst@xxxxxxxxxxxxxx>
---
man3/popen.3 | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/man3/popen.3 b/man3/popen.3
index 87d7c1f..f511810 100644
--- a/man3/popen.3
+++ b/man3/popen.3
@@ -169,6 +169,20 @@ cannot obtain the child status,
.I errno
is set to
.BR ECHILD .
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw17 lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR popen (),
+.BR pclose ()
+T} Thread safety MT-Safe
+.TE
+
.SH CONFORMING TO
POSIX.1-2001.
--
2.1.0
--
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