Fix build on MSVC with PCH off

src/libslic3r/GCode/PostProcessor.cpp

@@ -4,6 +4,7 @@
 #include <boost/log/trivial.hpp>
 #include <boost/format.hpp>
 #include <boost/filesystem.hpp>
+#include <boost/nowide/convert.hpp>
 
 #ifdef WIN32
 
@@ -11,6 +12,7 @@
 #define WIN32_LEAN_AND_MEAN
 #define NOMINMAX
 #include <Windows.h>
+#include <shellapi.h>
 
 // https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/
 // This routine appends the given argument to a command line such that CommandLineToArgvW will return the argument string unchanged.

src/slic3r/Config/Version.cpp

@@ -1,5 +1,7 @@
 #include "Version.hpp"
 
+#include <cctype>
+
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/trim.hpp>
 #include <boost/nowide/fstream.hpp>

src/slic3r/GUI/GUI_Utils.hpp

@@ -103,7 +103,7 @@ public:
     }
 
     void unbind() { event_storage.reset(nullptr); }
-    explicit operator bool() const noexcept { return !!event_storage; }
+    explicit operator bool() const { return !!event_storage; }
 };
 
 

src/slic3r/GUI/Tab.cpp

@@ -1,4 +1,5 @@
 // #include "libslic3r/GCodeSender.hpp"
+#include "slic3r/Utils/Serial.hpp"
 #include "Tab.hpp"
 #include "PresetBundle.hpp"
 #include "PresetHints.hpp"
@@ -6,7 +7,6 @@
 
 #include "slic3r/Utils/Http.hpp"
 #include "slic3r/Utils/PrintHost.hpp"
-#include "slic3r/Utils/Serial.hpp"
 #include "BonjourDialog.hpp"
 #include "WipeTowerDialog.hpp"
 #include "ButtonsDescription.hpp"