more comfortable approach for exporting dbus functions on windows

[Marcus Brinkmann]

Ralf Habacker wrote:
> Appended are the related patches for the cmake buildsystem - I tested it
> with msvc and mingw on windows without any problems.
> If there are no objections I will commit them tomorrow.
> The required patches for the autotools build system should cover the
> following topics:
> 1. remove def file usage and installation in buildsystem (including the
> .def.* files from dbus/ source dir)
> 2. add -DDBUS_STATIC_BUILD to the compile flags for building the
> dbus-internal target.
> 3. add -DDBUS_STATIC_BUILD to the compile flags for building all targets
> which depends on the internal lib (or dbus-convenience as it is called
> on unix)

Attached patch seems to do it for me.

> which depends on the internal lib (or dbus-convenience as it is called
> on unix)

Nothing a global search and replace on "-convenience" couldn't fix. :)

Thanks,
Marcus