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https://bugs.gentoo.org/944910
--- a/netcat.c
+++ b/netcat.c
@@ -257,7 +257,7 @@ void bail (str, p1, p2, p3, p4, p5, p6)
/* catch :
no-brainer interrupt handler */
-void catch ()
+void catch (__attribute__ ((unused)) int unused)
{
errno = 0;
if (o_verbose > 1) /* normally we don't care */
@@ -267,14 +267,14 @@ void catch ()
/* quit :
handler for a "-q" timeout (exit 0 instead of 1) */
-void quit ()
+void quit (__attribute__ ((unused)) int unused)
{
close (netfd);
exit (0);
}
/* timeout and other signal handling cruft */
-void tmtravel ()
+void tmtravel (__attribute__ ((unused)) int unused)
{
signal (SIGALRM, SIG_IGN);
alarm (0);
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