Include string.h in bflsc driver.
diff --git a/driver-bflsc.c b/driver-bflsc.c
index 05670ee..3045794 100644
--- a/driver-bflsc.c
+++ b/driver-bflsc.c
@@ -13,6 +13,7 @@
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
+#include <string.h>
#include <strings.h>
#include <sys/time.h>
#include <unistd.h>