su: fix compiler warning [-Wunused-parameter]

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/login-utils/su.c b/login-utils/su.c
index bbddea23..96486c26 100644
--- a/login-utils/su.c
+++ b/login-utils/su.c
@@ -195,7 +195,7 @@ cleanup_pam (int retcode)
 
 /* Signal handler for parent process.  */
 static void
-su_catch_sig (int sig)
+su_catch_sig (int sig __attribute__((__unused__)))
 {
   caught_signal = true;
 }