Bug#1015289: haskell-genvalidity FTBFS: error: Could not find module ‘Data.RelativeValidity’

[Adrian Bunk]

Source: haskell-genvalidity
Version: 0.11.0.0-1
Severity: serious
Tags: ftbfs bookworm sid

https://buildd.debian.org/status/package.php?p=haskell-genvalidity&suite=sid

...
src/Data/GenRelativeValidity.hs:9:1: error:
    Could not find module ‘Data.RelativeValidity’
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
  |
9 | import Data.RelativeValidity
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 107.
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run_quiet("debian/hlibrary.setup", "haddock", "--builddir=dist-ghc", "--with-haddock=/usr/bin/haddock", "--with-ghc=ghc", "--verbose=2", "--html", "--hoogle", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 131
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run("debian/hlibrary.setup", "haddock", "--builddir=dist-ghc", "--with-haddock=/usr/bin/haddock", "--with-ghc=ghc", "--verbose=2", "--html", "--hoogle", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 709
	Debian::Debhelper::Buildsystem::Haskell::Recipes::haddock_recipe() called at -e line 1
make: *** [/usr/share/cdbs/1/class/hlibrary.mk:153: build-ghc-stamp] Error 25