unsatisfied build-dependencies gimp, inkscape

[Bram Kuijper]

Hi all,

I am trying to build inkscape and gimp from source, so beforehand I execute:

sudo apt-get update;
works fine.
sudo apt-get upgrade;
works fine.

sudo apt-get build-dep inkscape;
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Build-dependencies for inkscape could not be satisfied.

Apparently, I got some dependency problem, but not with any further 
information. Does anyone know how to delve into this further? Exactly 
which build-dependencies couldn't be satisfied? Where should I look?

cheers,
Bram