[REVIEW: 3-6] fdo#54450 install evolution datasource driver

Hi all,

commit 5e19849479ee25e1ed1c7965588ce5497831614b fixes inclusion of some
gnome/gtk related files in the installation package(s), which would be
missing if the configuration did not contain at least one of
--enable-gio, --enable-gnomevfs or --enable-gtk3 options: Notably:
* if configuring with --enable-gtk (which is the default),
  libvclplug_gtklo.so would not be installed
* if configuring with --enable-evolution2, libevoablo.so would not be
  installed

This does not affect the official build, because it is configured with
--enable-gnomevfs, but I think it does not hurt to have it in 3.6, if
there is anyone who wants to review the fix :-)

D.