Bug#803684: haskell-devscripts: Don't print a warning if there are no -doc package Recommends

[Chris Lamb]

Package: haskell-devscripts
Version: 0.9.11
Severity: minor
Tags: patch

Hi,

If dh_haskell_depends cannot find any inter-package that should result
in packages being added to Recommends it calls dpkg-query with no
arguments, causing a spurious warning during builds:

  [..]

  Running dh_haskell_depends -plibghc-yi-language-doc
  dpkg-query: error: --search needs at least one file name pattern
  argument
  
  Use --help for help about querying packages.
  dh_haskell_blurbs "ghc" -plibghc-yi-language-doc

  [..]

Patch attached.


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
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