From: Xavier Dectot <xavier@wheredoibegin.fr>
Bug: https://github.com/gentoo-haskell/gentoo-haskell/issues/1231
Bug: https://github.com/gentoo-haskell/gentoo-haskell/issues/1270

doctest pulls in the out-of-scope packages if they are installed on the
system. The best workaround is to use migrate to cabal-doctest.

Date: Sat, 22 Mar 2025 10:18:26 +0100
Subject: [PATCH] b

--- a/Setup.hs
+++ b/Setup.hs
@@ -1,2 +1,8 @@
-import Distribution.Simple
-main = defaultMain
+module Main
+  ( main
+  ) where
+
+import           Distribution.Extra.Doctest (defaultMainWithDoctests)
+
+main :: IO ()
+main = defaultMainWithDoctests "doctests"
--- a/doctests.hs
+++ b/doctests.hs
@@ -1,4 +1,18 @@
 import Test.DocTest
+import GHC.IO.Encoding (setLocaleEncoding)
+import System.Directory (getCurrentDirectory, makeAbsolute)
+import System.FilePath.Posix ((</>))
+import System.IO (utf8)
+import Build_doctests (flags, pkgs)
 
 main :: IO ()
-main = doctest ["-isrc", "src"]
+main = do
+  setLocaleEncoding utf8
+  pwd <- getCurrentDirectory
+  prefix <- makeAbsolute pwd
+
+  let modules = ["-isrc", "src"]
+
+  let args = flags ++ pkgs ++ modules
+  
+  doctest args
--- a/jwt.cabal
+++ b/jwt.cabal
@@ -11,7 +11,7 @@ maintainer:          brian@brianmckenna.org
 homepage:            https://bitbucket.org/puffnfresh/haskell-jwt
 bug-reports:         https://bitbucket.org/puffnfresh/haskell-jwt/issues
 category:            Web
-build-type:          Simple
+build-type:          Custom 
 cabal-version:       >=1.16
 description:
 
@@ -29,6 +29,11 @@ source-repository head
     type: git
     location: https://bitbucket.org/puffnfresh/haskell-jwt.git
 
+custom-setup
+    setup-depends:
+        base
+      , Cabal
+      , cabal-doctest
 library
   exposed-modules:     Web.JWT
   other-modules:       Data.Text.Extended, Data.ByteString.Extended
@@ -106,5 +111,8 @@ test-suite doctests
   main-is:             doctests.hs
   ghc-options:         -threaded
   build-depends:       base < 5 && >= 4.8
+                     , directory
+                     , filepath
+                     , base-compat
                      , jwt
                      , doctest     >= 0.20
-- 
2.48.1