Can't compile haskell encoding lib. Couldn't find HaXml modules - haskell

Question

I need a library to encode data in cp1251 to work with an api which use it.
I found only 2 libs for this purpose. The encoding lib and text-icu lib. The first one looks better just because it can be statically linked to my program.
But I can't even compile it! I am using stack so I add encoding to build-deps in my .cabal file, and then stack solver update my stack yaml file with encoding-0.8 in extra-deps.
but after running stack build I a got an error
Data/Encoding/Preprocessor/XMLMapping.hs:11:8:
Could not find module ‘Text.XML.HaXml.Types’
Use -v to see a list of the files searched for.
Data/Encoding/Preprocessor/XMLMappingBuilder.hs:15:8:
Could not find module ‘Text.XML.HaXml.OneOfN’
Use -v to see a list of the files searched for.
Data/Encoding/Preprocessor/XMLMappingBuilder.hs:16:8:
Could not find module ‘Text.XML.HaXml.XmlContent’
Use -v to see a list of the files searched for.
I tried to use older version of HaXml and encoding but got the same error.
For example I tried to use encoding-0.6.7 with HaXml-1.22.3, after reading changelog https://hackage.haskell.org/package/encoding-0.7.0.2/changelog but got the same error.
In hackage documentation all this modules which encoding can't import exists.
How can I compile this lib? I am using stack 1.0.4, lts-5.6 and ghc-7.10.3 on linux mint x64
stack.yaml
flags: {}
extra-package-dbs: []
packages:
- '.'
extra-deps:
- encoding-0.8
- text-1.2.2.0
resolver: lts-5.6
cabal:
name: hapidry
version: 0.1.1.0
synopsis: Initial project template from stack
description: Please see README.md
homepage: -
license: GPL-2
license-file: LICENSE
author: -
maintainer: -
copyright: GPL
category: network
build-type: Simple
-- extra-source-files:
cabal-version: >=1.10
library
hs-source-dirs: src
exposed-modules: Lib
build-depends: base >= 4.7 && < 5
default-language: Haskell2010
executable hapidry-exe
hs-source-dirs: app
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, hapidry
, wreq
, ConfigFile
, aeson
, lens
, cryptohash
, binary
, mtl
, base16-bytestring
, bytestring
, containers
, text
, lens-aeson
, data-default
, optparse-applicative
, encoding
default-language: Haskell2010
test-suite hapidry-test
type: exitcode-stdio-1.0
hs-source-dirs: test
main-is: Spec.hs
build-depends: base
, hapidry
ghc-options: -threaded -rtsopts -with-rtsopts=-N
default-language: Haskell2010
source-repository head
type: git
location: -

Answer 1

Finally I wrote my own funtion for encoding. It looks like acceptable workaround. And functions for another one-byte encodings can be implemented in the same way.
toCP1251 :: Text -> B.ByteString
toCP1251 = B.pack . T.unpack . T.map replace where
replace l = case (Map.lookup l table) of
(Just x) -> x
(Nothing) -> l
table = Map.fromList $ zip rus cpCodes
cpCodes = map toEnum (168:184:[192 .. 255]) :: [Char]
rus = ['Ё', 'ё', 'А', 'Б', 'В', 'Г', 'Д', 'Е', 'Ж', 'З', 'И', 'Й', 'К', 'Л', 'М',
'Н', 'О', 'П', 'Р', 'С', 'Т', 'У', 'Ф', 'Х', 'Ц', 'Ч', 'Ш', 'Щ', 'Ъ', 'Ы',
'Ь', 'Э', 'Ю', 'Я', 'а', 'б', 'в', 'г', 'д', 'е', 'ж', 'з', 'и', 'й', 'к',
'л', 'м', 'н', 'о', 'п', 'р', 'с', 'т', 'у', 'ф', 'х', 'ц', 'ч', 'ш', 'щ',
'ъ', 'ы', 'ь', 'э', 'ю', 'я'] :: [Char]