wxWidgets-python 2.8.10.1 + --enable-graphics_ctx -> error: build failure

[guillaume.chevrot@…]

Build failure when I add --enable-graphics_ctx in the "configure.args" list in the wxWidgets-python Portfile

[guillaume.chevrot@…]

main.log

[guillaume.chevrot@…]

Portfile

[ryandesign (Ryan Carsten Schmidt)]

Has duplicates #31812 and #31872. Please stop submitting new tickets for the same problem.

Please understand that if you go and add things to portfiles, and then they don't work, that's not our problem.

We could certainly consider officially adding --enable-graphics_ctx to the port, if that could be built; as you've found, that can't be built due to an error. If you or someone else figure out how to build it with that option, let us know here.

Since this port has no maintainer, nobody in MacPorts is looking after it; you may need to ask the developers of this software how to enable this option.

[mf2k (Frank Schima)]

Closing due to unsupported configuration. You can re-open the ticket if you fix the problem and want to submit a patch for the port.

[mojca (Mojca Miklavec)]

I tested with wxWidgets 2.8.12, not with wxWidgets-python, but it shouldn't make a difference. I succeeded to compile the package as 64-bit on 10.7 by using gtk2/x11. To allow the switch --enable-graphics_ctx to work I had to do the following (I still need to come up with a proper patch):

• the following code in build/lib/wx/include/gtk2-unicode-release-2.8/wx/setup.h is problematic and I defined wxUSE_CAIRO to 1 unconditionally:

  #if !defined(__WIN32__) && !defined(__APPLE__)
  #define wxUSE_CAIRO 1
  #else
  #define wxUSE_CAIRO 0
  #endif
  

• not sure if needed, but a patch from a later upstream version:

  --- src/generic/graphicc.cpp.orig
  +++ src/generic/graphicc.cpp
  @@ -1474,10 +1480,10 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
   
   wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context )
   {
  -#if __WXMSW__
  +#ifdef __WXMSW__
       return new wxCairoContext(this,(HDC)context);
   #endif
  -#if __WXGTK__
  +#ifdef __WXGTK__
       return new wxCairoContext(this,(cairo_t*)context);
   #endif
   }
  

• I had to add -lcairo, -lGL -lGLU to build/Makefile (I'm not sure if both GL and GLU are needed, but some symbols were undefined and I didn't test if adding just one or the other would still work.)

After that the port installed fine. If anyone has more experience with coming up with a nice patch (given that it compiles on >= 10.6), I would be grateful. I'm attaching a Portfile (it might have some dependencies from browser:users/mojca/wxports, but it should be enough to get the idea of what I have I tested / how I configured the port).

[mojca (Mojca Miklavec)]

I think I got it working. See browser:users/mojca/wxports/graphics/wxWidgets-2.8. The patches from that port could be applied to wxWidgets-python if needed, but it would be a lot better to fix the whole mess at once if possible.

[mojca (Mojca Miklavec)]

wxWidgets 2.8 Portfile with --enable-graphics_ctx

[mojca (Mojca Miklavec)]

A patch for archs and compile errors from graphics context in wxWidgets-2.8

[mojca (Mojca Miklavec)]

This should be fixed in r110234 and r110279. Please reopen in case it doesn't work.