Author: Ben Stack <bgstack15@gmail.com>
Date: 2020-06-21 16:45 -0400
Message: Use the following command to get this old contents. Zenju must be using some newer definition of -std=c++2a than what Devuan Ceres provides as of 2020-05-17, and probably wxwidgets. This is the 10.23 code for these files.

    git checkout b4ecf755 wx+/choice_enum.h

Unfortunately with the removal of the wxWidgets-gtk2 code from Debian, we are stuck using all available at approximately November 1, 2019 snapshot of Debian: https://snapshot.debian.org/archive/debian/20191101T211023Z/pool/main/w/wxwidgets3.0/
libwxbase3.0-0v5_3.0.4+dfsg-14_amd64.deb
libwxbase3.0-0v5_3.0.4+dfsg-14_i386.deb
libwxbase3.0-dev_3.0.4+dfsg-14_amd64.deb
libwxbase3.0-dev_3.0.4+dfsg-14_i386.deb
libwxgtk3.0-0v5_3.0.4+dfsg-14_amd64.deb
libwxgtk3.0-0v5_3.0.4+dfsg-14_i386.deb
libwxgtk3.0-dev_3.0.4+dfsg-14_amd64.deb
libwxgtk3.0-dev_3.0.4+dfsg-14_i386.deb
wx3.0-headers_3.0.4+dfsg-14_all.deb
wx-common_3.0.4+dfsg-14_amd64.deb
wx-common_3.0.4+dfsg-14_i386.deb
diff -x '*.rej' -x '*.orig' -x '*.git*' -Naur 10.24-0/wx+/choice_enum.h 10.24-1/wx+/choice_enum.h
--- 10.24-0/wx+/choice_enum.h	2020-05-17 18:30:59.441499418 -0400
+++ 10.24-1/wx+/choice_enum.h	2020-05-17 18:53:59.893685507 -0400
@@ -7,7 +7,6 @@
 #ifndef CHOICE_ENUM_H_132413545345687
 #define CHOICE_ENUM_H_132413545345687
 
-#include <unordered_map>
 #include <vector>
 #include <wx/choice.h>
 
@@ -44,11 +43,8 @@
         descrList.push_back({ value, { text, tooltip } });
         return *this;
     }
-
     using DescrList = std::vector<std::pair<Enum, std::pair<wxString, wxString>>>;
     DescrList descrList;
-
-    std::unordered_map<const wxChoice*, std::vector<wxString>> itemsSetLast;
 };
 template <class Enum> void setEnumVal(const EnumDescrList<Enum>& mapping, wxChoice& ctrl, Enum value);
 template <class Enum> Enum getEnumVal(const EnumDescrList<Enum>& mapping, const wxChoice& ctrl);
@@ -69,34 +65,26 @@
 
 //--------------- impelementation -------------------------------------------
 template <class Enum>
-void setEnumVal(EnumDescrList<Enum>& mapping, wxChoice& ctrl, Enum value)
+void setEnumVal(const EnumDescrList<Enum>& mapping, wxChoice& ctrl, Enum value)
 {
-    auto& itemsSetLast = mapping.itemsSetLast[&ctrl];
+    ctrl.Clear();
 
-    std::vector<wxString> items;
+    int selectedPos = 0;
     for (auto it = mapping.descrList.begin(); it != mapping.descrList.end(); ++it)
-        items.push_back(it->second.first);
-
-    if (items != itemsSetLast)
     {
-        ctrl.Set(items); //expensive as fuck! => only call when absolutely needed!
-        itemsSetLast = std::move(items);
+        ctrl.Append(it->second.first);
+        if (it->first == value)
+        {
+            selectedPos = it - mapping.descrList.begin();
+
+            if (it->second.second.empty())
+                ctrl.UnsetToolTip();
+            else
+                ctrl.SetToolTip(it->second.second);
+        }
     }
-    //-----------------------------------------------------------------
-
-    const auto it = std::find_if(mapping.descrList.begin(), mapping.descrList.end(), [&](const auto& mapItem) { return mapItem.first == value; });
-    if (it != mapping.descrList.end())
-    {
-        if (const wxString& tooltip = it->second.second;
-            !tooltip.empty())
-            ctrl.SetToolTip(tooltip);
-        else
-            ctrl.UnsetToolTip();
 
-        const int selectedPos = it - mapping.descrList.begin();
-        ctrl.SetSelection(selectedPos);
-    }
-    else assert(false);
+    ctrl.SetSelection(selectedPos);
 }
 
 template <class Enum>
@@ -115,17 +103,11 @@
 
 template <class Enum> void updateTooltipEnumVal(const EnumDescrList<Enum>& mapping, wxChoice& ctrl)
 {
-    const int selectedPos = ctrl.GetSelection();
+    const Enum currentValue = getEnumVal(mapping, ctrl);
 
-    if (0 <= selectedPos && selectedPos < static_cast<int>(mapping.descrList.size()))
-    {
-        if (const auto& [text, tooltip] = mapping.descrList[selectedPos].second;
-            !tooltip.empty())
-            ctrl.SetToolTip(tooltip);
-        else
-            ctrl.UnsetToolTip();
-    }
-    else assert(false);
+    for (const auto& [enumValue, textAndTooltip] : mapping.descrList)
+        if (currentValue == enumValue)
+            ctrl.SetToolTip(textAndTooltip.second);
 }
 }