Fix of compilation on Linux, disabled -Wreorder

xs/src/libslic3r/GCode/PostProcessor.cpp

@@ -1,7 +1,7 @@
 #include "PostProcessor.hpp"
 
-
-#ifdef WIN32
+#if 1
+//#ifdef WIN32
 
 namespace Slic3r {
 

xs/src/libslic3r/Print.hpp

@@ -2,6 +2,7 @@
 #define slic3r_Print_hpp_
 
 #include "libslic3r.h"
+#include <atomic>
 #include <set>
 #include <vector>
 #include <string>

xs/src/libslic3r/utils.cpp

@@ -205,7 +205,7 @@ int rename_file(const std::string &from, const std::string &to)
 
 #else
 
-	boost::nowide::remove(from.c_str());
+	boost::nowide::remove(to.c_str());
 	ec = boost::nowide::rename(from.c_str(), to.c_str());
 
 #endif