[gobject-introspection] Compile of git master version failing

[Paul Smith <paul mad-scientist net>]

Hi all.  I'm trying to build the current git master of Evolution, which
now depends on libgdata.  libgdata needs to have gobject-introspection
installed so that it has "introspection.m4" available.

When I try to build the current git master of gobject-introspection, I
get these errors:

make[3]: Entering directory `/home/src/evo/evo-master/obj/gobject-introspection/gir'
  CC     libgirepository_everything_1_0_la-everything.lo
  CCLD   libgirepository-everything-1.0.la
  CC     libgirepository_gimarshallingtests_1_0_la-gimarshallingtests.lo
  CCLD   libgirepository-gimarshallingtests-1.0.la
  GISCAN GLib-2.0.gir
Traceback (most recent call last):
  File "../tools/g-ir-scanner", line 36, in <module>
    from giscanner.scannermain import scanner_main
  File "/home/src/evo/evo-master/gobject-introspection/giscanner/scannermain.py", line 31, in <module>
    from giscanner.dumper import compile_introspection_binary
  File "/home/src/evo/evo-master/gobject-introspection/giscanner/dumper.py", line 26, in <module>
    from .glibtransformer import IntrospectionBinary
  File "/home/src/evo/evo-master/gobject-introspection/giscanner/glibtransformer.py", line 32, in <module>
    from .transformer import Names
  File "/home/src/evo/evo-master/gobject-introspection/giscanner/transformer.py", line 29, in <module>
    from .config import DATADIR, GIR_DIR, GIR_SUFFIX
ImportError: No module named config
make[3]: *** [GLib-2.0.gir] Error 1
make[3]: Leaving directory `/home/src/evo/evo-master/obj/gobject-introspection/gir'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/src/evo/evo-master/obj/gobject-introspection'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/src/evo/evo-master/obj/gobject-introspection'
make: *** [.stamp/gobject-introspection.build] Error 2


Any ideas?