/usr/lib/ is in libghc-haskelldb-hdbc-postgresql-prof 2.1.0-2.
This file is owned by root:root, with mode 0o755.
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/usr/lib/haskell-packages/
/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/Database/
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/Database/HaskellDB/
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/Database/HaskellDB/HDBC//
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/Database/HaskellDB/HDBC/PostgreSQL.p_hi
/usr/lib/haskell-packages/ghc/lib/haskelldb-hdbc-postgresql-2.1.0/ghc-7.4.1/libHShaskelldb-hdbc-postgresql-2.1.0_p.a