/usr/lib/hugs/ is in libhugs-fgl-bundled 98.200609.21-5.3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/hugs/packages/
/usr/lib/hugs/packages/fgl/
/usr/lib/hugs/packages/fgl/Data/
/usr/lib/hugs/packages/fgl/Data/Graph/
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Basic.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Example.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Graph.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Graphviz.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/FiniteMap.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/Heap.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/Queue.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/RootPath.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Internal/Thread.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Monad/
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Monad.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Monad/IOArray.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/NodeMap.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/ArtPoint.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/BCC.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/BFS.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/DFS.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/Dominators.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/GVD.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/Indep.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/MST.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/MaxFlow.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/MaxFlow2.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/Monad.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/SP.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Query/TransClos.hs
/usr/lib/hugs/packages/fgl/Data/Graph/Inductive/Tree.hs
/usr/lib/hugs/packages/fgl/Paths_fgl.hs