Python error when building gdbus-codegen stuff (in glib / gio)

[John Emmas <john creativepost co uk>]

I'm not yet building with meson so forgive me if this is just down to my 
build system being out-of-date !!

The problem happens when I try to build glib/gio from yesterday's git 
master.  More specifically it happens when building the 'gdbus-codegen' 
stuff.  'The file 'gdbus-2.0/codegen/codegen_docbook.py' contains this 
at line 33:-

      class DocbookCodeGenerator:
          def __init__(self, ifaces):  // <--- NOTE THIS CHANGE !!
              self.ifaces = ifaces

              // etc. . .

Previously it looked like this:-

      class DocbookCodeGenerator:
          def __init__(self, ifaces, docbook, outdir):  //<--- ORIGINAL 
LINE !!
              self.ifaces = ifaces

              // etc. . .

But in the file 'gdbus-2.0/codegen/codegen_main.py' it seems to be 
getting called like this, at line 186:-

          docbook_gen = 
codegen_docbook.DocbookCodeGenerator(all_ifaces, docbook, outdir);

(which hasn't changed AFAICT).  Python is complaining that too many 
parameters are getting passed here.

Once again - apologies if this is all due to my build system being 
out-of-date...

John Emmas