Reverted some changes

ethcore/src/block_queue.rs

@@ -302,8 +302,7 @@ impl BlockQueue {
 			if self.processing.read().unwrap().contains(&h) {
 				return Err(ImportError::AlreadyQueued);
 			}
-			}
-		{
+
 			let mut bad = self.verification.bad.lock().unwrap();
 			if bad.contains(&h) {
 				return Err(ImportError::Bad(None));

util/sha3/build.rs

@@ -21,6 +21,6 @@
 extern crate gcc;
 
 fn main() {
-	gcc::Config::new().file("src/tinykeccak.c").flag("-O3").compile("libtinykeccak.a");
+    gcc::compile_library("libtinykeccak.a", &["src/tinykeccak.c"]);
 }