Improve use of compiler attributes

[tinc] / src / bsd / tunemu.c

diff --git a/src/bsd/tunemu.c b/src/bsd/tunemu.c
index 6867c47..4e3fbc7 100644 (file)
--- a/src/bsd/tunemu.c
+++ b/src/bsd/tunemu.c
@@ -80,6 +80,7 @@ static pcap_t *pcap = NULL;
 static size_t data_buffer_length = 0;
 static uint8_t *data_buffer = NULL;
 
+static void tun_error(char *format, ...) ATTR_FORMAT(printf, 1, 2);
 static void tun_error(char *format, ...) {
        va_list vl;
        va_start(vl, format);