Bug#822472: various haskell -dev packages are missing Built-Using attributes

[Matthias Klose]

Package: haskell-devscripts
Version: 0.10.2.3
Severity: serious
Tags: sid stretch

[I was doing a transition (icu 55 to 57), and investigating some build failures 
with link failures, some missing icu55 symbols. I didn't find the appropriate 
haskell package immediately, because it neither has a dependency on the icu 
runtime library or a Built-Using attribute ]

Seen with haskell-text-icu, but it looks like there are no Built-Using 
attributes for any C library used for many packages.  Therefore filing this 
isssue on a package which is maintained by the debian haskell maintainers. Feel 
free to clone, reassign, ...