Allow enabling WXTRACE in release builds on all platforms

Setting the environment variable KICAD_ENABLE_WXTRACE now enables wx
trace logging on all platforms. MSW still requires its original
environment variables to be set to get the console displayed.

common/single_top.cpp

@@ -176,6 +176,17 @@ struct APP_SINGLE_TOP : public wxApp
         if( !KIPLATFORM::APP::Init() )
             return false;
 
+#ifndef DEBUG
+        // Enable logging traces to the console in release build.
+        // This is usually disabled, but it can be useful for users to run to help
+        // debug issues and other problems.
+        if( wxGetEnv( wxS( "KICAD_ENABLE_WXTRACE" ), nullptr ) )
+        {
+            wxLog::EnableLogging( true );
+            wxLog::SetLogLevel( wxLOG_Trace );
+        }
+#endif
+
         // Force wxHtmlWinParser initialization when a wxHtmlWindow is used only
         // in a shared library (.so or .dll file)
         // Otherwise the Html text is displayed as plain text.

kicad/kicad.cpp

@@ -450,6 +450,17 @@ struct APP_KICAD : public wxApp
         if( !KIPLATFORM::APP::Init() )
             return false;
 
+#ifndef DEBUG
+        // Enable logging traces to the console in release build.
+        // This is usually disabled, but it can be useful for users to run to help
+        // debug issues and other problems.
+        if( wxGetEnv( wxS( "KICAD_ENABLE_WXTRACE" ), nullptr ) )
+        {
+            wxLog::EnableLogging( true );
+            wxLog::SetLogLevel( wxLOG_Trace );
+        }
+#endif
+
         if( !program.OnPgmInit() )
         {
             program.OnPgmExit();

kicad/kicad_cli.cpp

@@ -479,6 +479,17 @@ struct APP_KICAD_CLI : public wxAppConsole
         if( !KIPLATFORM::APP::Init() )
             return false;
 
+#ifndef DEBUG
+        // Enable logging traces to the console in release build.
+        // This is usually disabled, but it can be useful for users to run to help
+        // debug issues and other problems.
+        if( wxGetEnv( wxS( "KICAD_ENABLE_WXTRACE" ), nullptr ) )
+        {
+            wxLog::EnableLogging( true );
+            wxLog::SetLogLevel( wxLOG_Trace );
+        }
+#endif
+
         if( !program.OnPgmInit() )
         {
             program.OnPgmExit();

libs/kiplatform/msw/app.cpp

@@ -89,6 +89,7 @@ bool KIPLATFORM::APP::Init()
     // It may be useful to log up to traces in a console, but in Release builds the log level changes to Info
     // Also we have to force the active target to stderr or else it goes to the void
     bool forceLog = wxGetEnv( wxS( "KICAD_FORCE_CONSOLE_TRACE" ), nullptr );
+
     if( forceLog )
     {
         wxLog::EnableLogging( true );