Hi all,
I tried to upgrade my application to the new version of wxPython but
ran into the following problems:
I'm building wxPython version 2.7.1.2 using ,
opengl, , , and
debugreport as options to configure. I am building on Mac S X 10.4.8
using gcc 4.0.1 (and gtk-1.2 installed via Fink)
While building the wxWidgets part I had to apply the following
patches to get things to compile:
2006-08-18
01:28:46.000000000 +0200
2006-10-24
13:15:56.000000000 +0200
@@ -196,3 +196,8 @@
return wxPRT_GTK;
}
+
+wxString () const
+{
+ return wxEmptyString;
+}
stdpaths_cf.cpp 2006-07-05 20:37:00.000000000 +0200
2006-10-24 12:06:09.000000000 +0200
@@ -31,7 +31,6 @@ #include "wx/mac/private.h"
#endif #include ""
-#include "wx/mac/private.h"
#if defined(__DARWIN__)
#include <CoreFoundation/CFBundle.h>
After installing wxWidgets I tried to build wxPython using Python
2.4.4 with
python setup.py WXPRT=gtk WX_CNFIG=$(mywxpythonpath)/bin/wx-
config install $(mywxpythonpath)
This produced the following error when trying to compile helpers.cpp:
cc1plus: warning: command line option "-Wstrict-prototypes" is valid
for C/C but not for C++
src/helpers.cpp:32:28: error: wx/gtk/win_gtk.h: No such file or
directory
src/helpers.cpp: In function 'long int wxPyGetWinHandle(wxWindow*)':
src/helpers.cpp:1841: error: 'GTK_PIZZA' was not declared in this scope
error: command 'gcc' failed with exit status 1
It seems that for Gtk 1.2 the directory include/wx/gtk has been
renamed to include/wx/gtk1. I did provide a WXPRT=gtk, so I assume
it is a bug that wxPython is not looking in include/wx/gtk1 for the
win_gtk.h file.
I just made a temporary symbolic link from this gtk1 subdirectory
(named include/wx/gtk) and tried to see how much further I could get.
The next problem occurred when trying to compile _core_wrap.o:
cc1plus: warning: command line option "-Wstrict-prototypes" is valid
for C/C but not for C++
src/gtk/_core_wrap.cpp: In function 'P*
_wrap_GetAccelFromString(P*, P*, P*)':
src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
deprecated (declared at /
wx-2.7/wx/utils.h:571)
src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
deprecated (declared at /
wx-2.7/wx/utils.h:571)
src/gtk/_core_wrap.cpp: In function 'P*
_wrap_Window_SetDoubleBuffered(P*, P*, P*)':
src/gtk/_core_wrap.cpp:34445: error: 'class wxWindow' has no member
named 'SetDoubleBuffered'
At this point I am lost. Could someone please help me get this thing
build?
Best regards,
Sander Niemeijer
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25-okt-2006, at 0:15, Robin Dunn wrote:

As you can probably tell, development activity, testing and support
for gtk1 is dwindling pretty fast. Isn't GTK2 available in fink?

Yes it is. However, the reason why we are still using GTK1 is because
GTK2 gave problems with the wxvtk bridge to VTK. visualizations
showed all kinds of weird z-ordering problems.
It will take some time to fix this issue, so for the time being we
just like to stick with GTK1.

>
>While building the wxWidgets part I had to apply the following
>patches to get things to compile:
>
>2006-08-18
>01:28:46.000000000 +0200
>2006-10-24
>13:15:56.000000000 +0200
>@@ -196,3 +196,8 @@
>return wxPRT_GTK;
>}
>+
>+wxString () const
>+{
>+ return wxEmptyString;
>+}
>
Please submit this patch to the wx patch tracker.

done.

>
>stdpaths_cf.cpp 2006-07-05 20:37:00.000000000 +0200
>
>2006-10-24 12:06:09.000000000 +0200
>@@ -31,7 +31,6 @@ #include "wx/mac/private.h"
>#endif #include ""
>-#include "wx/mac/private.h"
>#if defined(__DARWIN__)
>#include <CoreFoundation/CFBundle.h>
>
>
I wouldn't expect it to try including corefoundation at all on a
gtk build and would think that's a bug, but I could be wrong.

I'm not sure either. However, I submitted a patch for the incorrect
include of wx/mac/private.h

>After installing wxWidgets I tried to build wxPython using Python
>2.4.4 with
>python setup.py WXPRT=gtk WX_CNFIG=$(mywxpythonpath)/bin/wx-
>config install $(mywxpythonpath)
>This produced the following error when trying to compile helpers.cpp:
>
>cc1plus: warning: command line option "-Wstrict-prototypes" is
>valid for C/C but not for C++
>src/helpers.cpp:32:28: error: wx/gtk/win_gtk.h: No such file or
>directory
>src/helpers.cpp: In function 'long int wxPyGetWinHandle(wxWindow*)':
>src/helpers.cpp:1841: error: 'GTK_PIZZA' was not declared in this
>scope
>error: command 'gcc' failed with exit status 1
>
>It seems that for Gtk 1.2 the directory include/wx/gtk has been
>renamed to include/wx/gtk1. I did provide a WXPRT=gtk, so I
>assume it is a bug that wxPython is not looking in include/wx/gtk1
>for the win_gtk.h file.
>
A change in helpers.cpp where it includes the file to make it
dependent on whether __WXGTK20__ is defined or not should fix it.
If so then send a patch for that too.

Patch submitted.

>I just made a temporary symbolic link from this gtk1 subdirectory
>(named include/wx/gtk) and tried to see how much further I could get.
>The next problem occurred when trying to compile _core_wrap.o:
>
>cc1plus: warning: command line option "-Wstrict-prototypes" is
>valid for C/C but not for C++
>src/gtk/_core_wrap.cpp: In function 'P*
>_wrap_GetAccelFromString(P*, P*, P*)':
>src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
>deprecated (declared at /
>wx-2.7/wx/utils.h:571)
>src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
>deprecated (declared at /
>wx-2.7/wx/utils.h:571)
>src/gtk/_core_wrap.cpp: In function 'P*
>_wrap_Window_SetDoubleBuffered(P*, P*, P*)':
>src/gtk/_core_wrap.cpp:34445: error: 'class wxWindow' has no
>member named 'SetDoubleBuffered'
>
>
This one can be fixed with a patch to include/wx/gtk1/window.h.
Add something like this to the wxWindow declaration:

void SetDoubleBuffered(bool ) {}

Patch submitted.

Now the next thing that I found was an error when compiling src/gtk/
_controls_wrap.cpp (the _controls_ extension):

cc1plus: warning: command line option "-Wstrict-prototypes" is valid
for C/C but not for C++
src/gtk/_controls_wrap.cpp: In function 'P*
_wrap_TextCtrl_SetModified(P*, P*, P*)':
error: no matching function for
call to 'wxTextCtrl::SetModified(bool&)'
/
140: note: candidates are: void wxTextCtrl::SetModified()

I don't really understand this error. wxTextCtrl for gtk1 has its own
SetModified() without parameters (and this won't work here), however
wxTextCtrlBase (the parent class) does have a SetModified() that
takes a bool as parameter. Any ideas how to fix this?

Best regards,
Sander Niemeijer

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26-okt-2006, at 20:06, Robin Dunn wrote:

Sander Niemeijer wrote:

I just made a temporary symbolic link from this gtk1
subdirectory (named include/wx/gtk) and tried to see how much
further I could get.
The next problem occurred when trying to compile _core_wrap.o:

cc1plus: warning: command line option "-Wstrict-prototypes" is
valid for C/C but not for C++
src/gtk/_core_wrap.cpp: In function 'P*
_wrap_GetAccelFromString(P*, P*, P*)':
src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
deprecated (declared at /
wx-2.7/wx/utils.h:571)
src/gtk/_core_wrap.cpp:30339: warning: 'wxGetAccelFromString' is
deprecated (declared at /
wx-2.7/wx/utils.h:571)
src/gtk/_core_wrap.cpp: In function 'P*
_wrap_Window_SetDoubleBuffered(P*, P*, P*)':
src/gtk/_core_wrap.cpp:34445: error: 'class wxWindow' has no
member named 'SetDoubleBuffered'

This one can be fixed with a patch to include/wx/gtk1/window.h.
Add something like this to the wxWindow declaration:

void SetDoubleBuffered(bool ) {}
>Patch submitted.
>
I didn't see this patch.

Sorry. I forget to submit it. It should be there now.

>Now the next thing that I found was an error when compiling src/
>gtk/_controls_wrap.cpp (the _controls_ extension):
>
>cc1plus: warning: command line option "-Wstrict-prototypes" is
>valid for C/C but not for C++
>src/gtk/_controls_wrap.cpp: In function 'P*
>_wrap_TextCtrl_SetModified(P*, P*, P*)':
>error: no matching function for
>call to 'wxTextCtrl::SetModified(bool&)'
>/
>140: note: candidates are: void wxTextCtrl::SetModified()
>
>I don't really understand this error. wxTextCtrl for gtk1 has its
>own SetModified() without parameters (and this won't work here),
>however wxTextCtrlBase (the parent class) does have a SetModified
>() that takes a bool as parameter. Any ideas how to fix this?
>
It probably needs to be tested, but it looks like you can just
remove the SetModified in gtk1/textctrl.h, I think the one in the
base class should work ok. If not then I would just change the
derived class version to take the bool parameter and set m_modified
to the value of the parameter.

I also just submitted a patch for this.

Then on with the build and I get this:

cc1plus: warning: command line option "-Wstrict-prototypes" is valid
for C/C but not for C++
In function 'P*
_wrap_new_GLContext(P*, P*, P*)':
error: no matching
function for call to 'wxGLContext::wxGLContext(wxGLCanvas*&, const
wxGLContext*)'
/
note: candidates are: wxGLContext::wxGLContext(bool, wxWindow*, const
wxPalette&, const wxGLContext*)
/
note: wxGLContext::wxGLContext(bool, wxWindow*, const
wxPalette&)
/
note: wxGLContext::wxGLContext(const wxGLContext&)
In function 'P*
_wrap_GLContext_SetCurrent(P*, P*, P*)':
error: no matching
function for call to 'wxGLContext::SetCurrent(const wxGLCanvas&)'
/
note: candidates are: void wxGLContext::SetCurrent()
In function 'P*
(P*, int, P**)':
error: no matching
function for call to 'wxGLCanvas::SetCurrent(const wxGLContext&)'
/
143: note: candidates are: void wxGLCanvas::SetCurrent()

This is starting to get very tiresome. I don't mind helping fixing an
issue here and there, but I just don't have time to take on full
maintenance for the GTK1 backend. Especially if every new change to
the GTK2 backend might break the GTK1 backend again.

Fortunately, yesterday I tried to build our application with wxPython
2.7 and the latest version of VTK using GTK2 and the z-ordering
issues we saw with the wxvtk binding and earlier versions of wxPython
are gone now. So I think I am now going to focus my efforts on
wxPython with GTK2.

P.S. If the situation with GTK1 does not improve, then might I
suggest putting a big warning sign somewhere for people who want to
try to use this backend. It will also reflect rather badly on the
image of the whole toolbox if people are confronted with all these
build errors.

Best regards,
Sander

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