[packagekit] Build problems with git

[Richard Hughes]

Guys, any automake gods around:

touch sgml-build.stamp
gtk-doc: Building HTML
rm -rf ../../../docs/api/html
mkdir ../../../docs/api/html
cd ../../../docs/api/html && gtkdoc-mkhtml PackageKit ../PackageKit-docs.sgml
warning: failed to load external entity "../version.xml"
../PackageKit-docs.sgml:10: parser error : Failure to process entity version
      for PackageKit &version;
                              ^
../PackageKit-docs.sgml:10: parser error : Entity 'version' not defined
      for PackageKit &version;
                              ^
unable to parse ../PackageKit-docs.sgml
make[4]: *** [html-build.stamp] Error 6

Richard