Installing sqlite driver in Haskell using stack - sqlite

Question

I have sqlite3 installed in Ubuntu.
$ which sqlite3
/home/user/anaconda3/bin/sqlite3
I'm trying to install the sqlite driver in Haskell and see the following error:
$ stack install sqlite
sqlite-0.5.5: configure
sqlite-0.5.5: build
-- While building custom Setup.hs for package sqlite-0.5.5 using:
/tmp/stack16820/sqlite-0.5.5/.stack-work/dist/x86_64-linux/Cabal-2.2.0.1/setup/setup --builddir=.stack-work/dist/x86_64-linux/Cabal-2.2.0.1 build --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
Process exited with code: ExitFailure 1
Logs have been written to: /home/user/.stack/global-project/.stack-work/logs/sqlite-0.5.5.log
[1 of 2] Compiling Main ( /tmp/stack16820/sqlite-0.5.5/Setup.hs, /tmp/stack16820/sqlite-0.5.5/.stack-work/dist/x86_64-linux/Cabal-2.2.0.1/setup/Main.o )
[2 of 2] Compiling StackSetupShim ( /home/user/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs, /tmp/stack16820/sqlite-0.5.5/.stack-work/dist/x86_64-linux/Cabal-2.2.0.1/setup/StackSetupShim.o )
Linking /tmp/stack16820/sqlite-0.5.5/.stack-work/dist/x86_64-linux/Cabal-2.2.0.1/setup/setup ...
Configuring sqlite-0.5.5...
Preprocessing library for sqlite-0.5.5..
Building library for sqlite-0.5.5..
[1 of 5] Compiling Database.SQL.Types ( Database/SQL/Types.hs, .stack-work/dist/x86_64-linux/Cabal-2.2.0.1/build/Database/SQL/Types.o )
/tmp/stack16820/sqlite-0.5.5/Database/SQL/Types.hs:481:37: error:
Ambiguous occurrence ‘<>’
It could refer to either ‘Prelude.<>’,
imported from ‘Prelude’ at Database/SQL/Types.hs:15:8-25
(and originally defined in ‘GHC.Base’)
or ‘Text.PrettyPrint.HughesPJ.<>’,
imported from ‘Text.PrettyPrint.HughesPJ’ at Database/SQL/Types.hs:56:1-32
|
481 | FunSQLExpr f es -> text f <> parens (commaH ppSQLExpr es)
| ^^
Which of ghc, stack, cabal, anaconda, sqlite should I interrogate to figure out what is failing?

Answer 1

I'm trying to install the sqlite driver in Haskell and see the following error
The sqlite package is deprecated in favour of sqlite-simple So, I would recommend you to not use this. If you are looking for a much higher level of interface to sqlite, I would recommend persistent library.
If you want to still make it work, the easiest way is to just fix the compile errors by forking the code and make it work with the required GHC version.

Answer 2

TL;DR
stack install sqlite --resolver=lts-11.22 should work
First of all i would follow sibi advise and install the maintaned package sqlite-simple.
But if you want to use the deprecated one we could analyze the error:
The error is thrown in the haskell part, the combination of stack and haskell. No mention about c code so the sqlite lib (or anaconda) is not involved here
Ambiguous occurrence ‘<>’ It could refer to either ‘Prelude.<>’, or ‘Text.PrettyPrint.HughesPJ.<>’: The simbol <> is defined in two modules and the client code doesn't disambiguate them (surely cause it was only in one module at the time)
So we have to compile with a version of Prelude or Text.PrettyPrint.HughesPJ without the definition of <>
Text.PrettyPrint.HughesPJ is a module from the pretty package and all versions of the package have the operator exported
The Prelude is defined in the base library and it is fixed for each version of ghc, that in turn is fixed for each major version of the stackage resolver. You can set the global stack resolver in ~/stack/global-project/stack.yaml or in each call to stack with the option --resolver=
The package sqlite accepts base versions in the range >=3 && <5 (in fact that is the cause of the problem, it is too flexible)
If we search for <> in the changelog of base we can see it was exported since version 4.11.0. And that version was shipped with ghc-8.4.1 (you can see the matrix between versions here). So we have to choose a stackage resolver linked to a previous version of ghc: f.e. lts-11.22 with ghc-8.2.2