Warnings fixes.

libdevcore/Guards.h

@@ -24,7 +24,12 @@
 #include <mutex>
 #include <condition_variable>
 #include <atomic>
+#pragma warning(push)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 #include <boost/thread.hpp>
+#pragma warning(pop)
+#pragma GCC diagnostic pop
 
 namespace dev
 {

libdevcore/Log.h

@@ -25,7 +25,12 @@
 
 #include <ctime>
 #include <chrono>
+#pragma warning(push)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 #include <boost/thread.hpp>
+#pragma warning(pop)
+#pragma GCC diagnostic pop
 #include "vector_ref.h"
 #include "Common.h"
 #include "CommonIO.h"

libethereum/BasicGasPricer.cpp

@@ -19,7 +19,12 @@
  * @date 2015
  */
 
+#pragma warning(push)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 #include <boost/math/distributions/normal.hpp>
+#pragma warning(pop)
+#pragma GCC diagnostic pop
 #include "BasicGasPricer.h"
 #include "BlockChain.h"
 using namespace std;

libevmasm/KnownState.h

@@ -29,7 +29,12 @@
 #include <tuple>
 #include <memory>
 #include <ostream>
+#pragma warning(push)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wredeclared-class-member"
 #include <boost/bimap.hpp>
+#pragma warning(pop)
+#pragma GCC diagnostic pop
 #include <libdevcore/CommonIO.h>
 #include <libdevcore/Exceptions.h>
 #include <libevmasm/ExpressionClasses.h>