Fix minor warning.
diff --git a/icarus.c b/icarus.c
index f97dc7b..7739395 100644
--- a/icarus.c
+++ b/icarus.c
@@ -244,7 +244,7 @@ static uint64_t icarus_scanhash(struct thr_info *thr, struct work *work,
char *ob_hex, *nonce_hex;
uint32_t nonce;
uint32_t hash_count;
- time_t t;
+ time_t t = 0;
icarus = thr->cgpu;
fd = icarus->device_fd;