/usr/lib/haskell-packages/ is in libghc-puremd5-prof 2.1.3-3+b1.
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/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.1/
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/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.1/pureMD5-2.1.3-BsqklOMITBg84hkRwQjdJD/Data/Digest//
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.1/pureMD5-2.1.3-BsqklOMITBg84hkRwQjdJD/Data/Digest/Pure//
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.1/pureMD5-2.1.3-BsqklOMITBg84hkRwQjdJD/Data/Digest/Pure/MD5.p_hi
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.1/pureMD5-2.1.3-BsqklOMITBg84hkRwQjdJD/libHSpureMD5-2.1.3-BsqklOMITBg84hkRwQjdJD_p.a