vendor/libsodium/test/default/auth.c in rbnacl-libsodium-1.0.7 vs vendor/libsodium/test/default/auth.c in rbnacl-libsodium-1.0.8

@@ -13,10 +13,10 @@
 static unsigned char a2[crypto_auth_hmacsha512_BYTES];
 
 int main(void)
 {
     crypto_auth_hmacsha512_state st;
-    int i;
+    size_t i;
 
     assert(crypto_auth_hmacsha512_statebytes() ==
            sizeof(crypto_auth_hmacsha512_state));
     crypto_auth(a, c, sizeof c - 1U, key);
     for (i = 0; i < sizeof a; ++i) {