1 files changed, 3 insertions, 1 deletions
diff --git a/lib/md5.c b/lib/md5.c
index b938e1ca9..39d2bb4e5 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -29,7 +29,9 @@
 #include <stddef.h>
 #include <string.h>
 
-#include "unlocked-io.h"
+#ifdef USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
 
 #ifdef _LIBC
 # include <endian.h>