Workaround wx-3.2 issues with translation lookup

Special-case some problematic cases until wx-3.2.x includes the fixes
from wxWidgets/wxWidgets#24297

src/edapp.cpp

@@ -46,6 +46,7 @@
 #include <wx/intl.h>
 #include <wx/ipc.h>
 #include <wx/translation.h>
+#include <wx/uilocale.h>
 
 #include <iostream>
 #include <fstream>
@@ -618,6 +619,15 @@ void PoeditApp::SetupLanguage()
 #endif
     }
 
+    // workaround wx bug, see https://github.com/wxWidgets/wxWidgets/pull/24297
+    if (language == wxLANGUAGE_DEFAULT && trans->GetBestTranslation("poedit") == "en_GB")
+    {
+        // only use en_GB if it is actually appropriate
+        auto pref = wxUILocale::GetPreferredUILanguages();
+        if (std::find(pref.begin(), pref.end(), "en-GB") == pref.end()) // not really requested
+            trans->SetLanguage("en");
+    }
+
     trans->AddStdCatalog();
     trans->AddCatalog("poedit");
 

src/gexecute.cpp

@@ -128,6 +128,8 @@ std::pair<long, wxArrayString> DoExecuteGettextImpl(const wxString& cmdline_)
     env.env["OUTPUT_CHARSET"] = "UTF-8";
 
     wxString lang = wxTranslations::Get()->GetBestTranslation("gettext-tools");
+    if ( lang.starts_with("en@") )
+        lang = "en"; // don't want things like en@blockquot
 	if ( !lang.empty() )
         env.env["LANG"] = lang;
 #endif // __WXOSX__ || __WXMSW__