Fix includes.

src/slic3r/GUI/Gizmos/GLGizmoCut.cpp

@@ -9,6 +9,7 @@
 
 #include <algorithm>
 #include <wx/progdlg.h>
+#include <boost/nowide/convert.hpp>
 
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/Plater.hpp"

src/slic3r/GUI/ImGuiPureWrap.cpp

@@ -5,6 +5,7 @@
 ///|/
 #include "ImGuiPureWrap.hpp"
 
+#include <boost/algorithm/string/predicate.hpp>
 #include <boost/nowide/convert.hpp>
 
 #ifndef IMGUI_DEFINE_MATH_OPERATORS

src/slic3r/GUI/ImGuiPureWrap.hpp

@@ -5,6 +5,7 @@
 #ifndef slic3r_ImGuiPureWrap_hpp_
 #define slic3r_ImGuiPureWrap_hpp_
 
+#include <functional>
 #include <string>
 #include <string_view>
 #include <vector>

src/slic3r/GUI/WebViewDialog.hpp

@@ -2,6 +2,8 @@
 #define slic3r_WebViewDialog_hpp_
 
 #include <map>
+#include <wx/wx.h>
+#include <wx/event.h>
 
 class wxWebView;
 class wxWebViewEvent;