Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
.fi
.PP
.IR Note :
-There are no glibc wrappers for these system calls; see NOTES.
+There is no glibc wrapper for
+.BR tkill ();
+see NOTES.
.SH DESCRIPTION
.BR tgkill ()
sends the signal
is supported since Linux 2.4.19 / 2.5.4.
.BR tgkill ()
was added in Linux 2.5.75.
+.PP
+Library support for
+.BR tgkill ()
+was added to glibc in version 2.30.
.SH CONFORMING TO
.BR tkill ()
and
.BR clone (2)
for an explanation of thread groups.
.PP
-Glibc does not provide wrappers for these system calls; call them using
+Glibc does not provide a wrapper for
+.BR tkill ();
+call it using
.BR syscall (2).
+Before glibc 2.30, there was also no wrapper function for
+.BR tgkill ().
.SH SEE ALSO
.BR clone (2),
.BR gettid (2),