[Shotwell] Can't build trunk on Ubuntu 12.04

[Bruno Girin]

Hi all,

I can't build Shotwell trunk on Ubuntu 12.04, I currently get this error:

Package rest-0.7 was not found in the pkg-config search path.
Perhaps you should add the directory containing `rest-0.7.pc'
to the PKG_CONFIG_PATH environment variable
No package 'rest-0.7' found

First thing I checked is I do have the following packages installed:
librest-0.7-0
gir1.2-rest-0.7

And there isn't any *-dev package in the repos for librest. Any
suggestion would be welcome!

Thanks,

Bruno