diff --git a/libmincrypt/dsa_sig.c b/libmincrypt/dsa_sig.c
index 8df6cf7..101314b 100644
--- a/libmincrypt/dsa_sig.c
+++ b/libmincrypt/dsa_sig.c
@@ -26,6 +26,7 @@
 
 #include <string.h>
 
+#include "mincrypt/dsa_sig.h"
 #include "mincrypt/p256.h"
 
 /**
diff --git a/libmincrypt/test/ecdsa_test.c b/libmincrypt/test/ecdsa_test.c
index b5a7b3a..24ec013 100644
--- a/libmincrypt/test/ecdsa_test.c
+++ b/libmincrypt/test/ecdsa_test.c
@@ -24,15 +24,21 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <stdio.h>
 #include <ctype.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/cdefs.h>
 
+#include "mincrypt/dsa_sig.h"
 #include "mincrypt/p256.h"
 #include "mincrypt/p256_ecdsa.h"
 #include "mincrypt/sha256.h"
 
+#ifndef __unused
+#define __unused __attribute__((__unused__))
+#endif
+
 /**
  * Messages signed using:
  *
@@ -209,7 +215,7 @@
     return result;
 }
 
-int main(int arg, char** argv) {
+int main(int arg __unused, char** argv __unused) {
 
     unsigned char hash_buf[SHA256_DIGEST_SIZE];
 
diff --git a/libmincrypt/test/rsa_test.c b/libmincrypt/test/rsa_test.c
index 17862dc..055138f 100644
--- a/libmincrypt/test/rsa_test.c
+++ b/libmincrypt/test/rsa_test.c
@@ -1,5 +1,4 @@
-/* rsa_test.c
-**
+/*
 ** Copyright 2013, The Android Open Source Project
 **
 ** Redistribution and use in source and binary forms, with or without
@@ -25,14 +24,19 @@
 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#include <stdio.h>
 #include <ctype.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/cdefs.h>
 
 #include "mincrypt/rsa.h"
 #include "mincrypt/sha.h"
 
+#ifndef __unused
+#define __unused __attribute__((unused))
+#endif
+
 // RSA test data taken from:
 //
 //   ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
@@ -791,7 +795,7 @@
 }
 
 
-int main(int arg, char** argv) {
+int main(int arg __unused, char** argv __unused) {
 
     unsigned char hash[SHA_DIGEST_SIZE];