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

...
hlibrary.setup: Encountered missing or private dependencies:
base >=4.3.1.0 && <4.14

 at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 107.
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run_quiet("debian/hlibrary.setup", "configure", "--ghc", "-v2", "--package-db=/var/lib/ghc/package.conf.d", "--prefix=/usr", "--libdir=/usr/lib/haskell-packages/ghc/lib", "--libexecdir=/usr/lib", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 131
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run("debian/hlibrary.setup", "configure", "--ghc", "-v2", "--package-db=/var/lib/ghc/package.conf.d", "--prefix=/usr", "--libdir=/usr/lib/haskell-packages/ghc/lib", "--libexecdir=/usr/lib", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 620
	Debian::Debhelper::Buildsystem::Haskell::Recipes::configure_recipe() called at -e line 1
make: *** [/usr/share/cdbs/1/class/hlibrary.mk:153: build-ghc-stamp] Error 25

We believe that the bug you reported is fixed in the latest version of
haskell-polyparse, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1013784@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Ilias Tsitsimpis <iliastsi@debian.org> (supplier of updated haskell-polyparse package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 03 Jul 2022 13:31:06 +0300
Source: haskell-polyparse
Architecture: source
Version: 1.13-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Haskell Group <pkg-haskell-maintainers@lists.alioth.debian.org>
Changed-By: Ilias Tsitsimpis <iliastsi@debian.org>
Closes: 1013784
Changes:
 haskell-polyparse (1.13-2) unstable; urgency=medium
 .
   * Declare compliance with Debian policy 4.6.1
   * Patch for newer dependencies (Closes: #1013784)
Checksums-Sha1:
 9419f6dec95debf8415f7e5a72dff35dd08a8aab 2338 haskell-polyparse_1.13-2.dsc
 cfbdbd9cc7519673789bf57b7ca2258ec585c6b1 4088 haskell-polyparse_1.13-2.debian.tar.xz
 262730551076bf48b40d0582d1fb4dafecda9119 8331 haskell-polyparse_1.13-2_amd64.buildinfo
Checksums-Sha256:
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 dc17961143303f9b7dabb62770561cbba6cdbff07b0b1f9d83e918b70961f6a5 4088 haskell-polyparse_1.13-2.debian.tar.xz
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Files:
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 d2fac88a26849d6e6502428f89f60012 4088 haskell optional haskell-polyparse_1.13-2.debian.tar.xz
 023a15ec9b8dec1d6fee8a37fe56ed6e 8331 haskell optional haskell-polyparse_1.13-2_amd64.buildinfo
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