I have done some experiments today:
Unfortunately I have set up Gnome3 on my AV Linux install before i tried to install the programs today, so this info may not be accurate due to some system updates from Sid repository from the gnome installation:
The latest RawTherapee build for Ubuntu which is available from the RT homepage works fine after installing the liblcms2-2 from the Debian Sid repo.
Hugin is available in the Repo and works.
Luminance HDR was a bit tricky to get running. I used the .deb from their sourceforge page an had to compile libexiv2 by hand and then install the libraw and libtiff packages from their sf page to get it working.
But Libtiff conflicted with gimp-plugin-registry in some way so that i had to remove the gimp package. (no problem for me as I use to build gimp 2.7 snapshots on my system).
So the mor elegant way to install Luminance HDR would be to compile the newest libexiv2 and libraw by hand, maybe install libtiff4 (the pre built luminance package needs tiff3) from Sid repo and compile Luminance HDR by hand. I will try it out