Please check if it works on amd64 and, if it does, keyword ~amd64.
seems there are missing dep. Linking gsl-shell /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.4/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lblas collect2: ld returned 1 exit status make: *** [gsl-shell] Errore 1
This should be fixed now (I hope). Please try again.
Fixed. Please enable verbose build log in the next bump