Conflicting declarations of GdkWindow from gtk and wx

[adrianmay]

On arch linux I'm getting:

In file included from /usr/include/gtk-3.0/gdk/gdkapplaunchcontext.h:30,
                 from /usr/include/gtk-3.0/gdk/gdk.h:32,
                 from /usr/include/gtk-3.0/gdk/gdkx.h:28,
                 from wxappbar.cpp:46:
/usr/include/gtk-3.0/gdk/gdktypes.h:143:39: error: conflicting declaration ‘typedef struct _GdkWindow GdkWindow’
  143 | typedef struct _GdkWindow             GdkWindow;
      |                                       ^~~~~~~~~
In file included from /usr/include/wx-3.0/wx/wxprec.h:12,
                 from wxappbar.cpp:24:
/usr/include/wx-3.0/wx/defs.h:3466:33: note: previous declaration as ‘typedef struct _GdkDrawable GdkWindow’

The problem remains after removing arch's package wxgtk3 and leaving only 2. I can't remove gtk3 without wrecking my box.

checking gtk version... 3.24.13
checking wxWidgets version... 3.0.4
checking opencv version... 4.2.0

[adrianmay]

Just tried it with wxWidgets 3.1.3 from source. Same result. Perhaps you're just not supposed to include both of those headers.

[adrianmay]

The problem turned out to be that wxWidgets had been compiled against gtk2, not 3. Now I'm just dusting away warnings which become errors under gcc 9.2

[adrianmay]

index 26f1a25..8b3c650 100755
--- a/src/viacamcontroller.cpp
+++ b/src/viacamcontroller.cpp
@@ -230,7 +230,7 @@ CCamera* CViacamController::SetUpCamera()

                        wxSingleChoiceDialog choiceDlg(
                                NULL, _("Choose the camera to use"), _T("Enable Viacam"), strArray, 
-                               (char**)NULL, wxDEFAULT_DIALOG_STYLE | wxOK | wxCANCEL | wxCENTRE);
+                               NULL, wxDEFAULT_DIALOG_STYLE | wxOK | wxCANCEL | wxCENTRE);

                        if (choiceDlg.ShowModal ()!= wxID_OK) return NULL;

[Gab0]

Hi, I'm getting the exact same error here, also under Arch Linux. How did you solve that?