From 684f13f83b1a3cba86797ff241cf92958a1fb5c0 Mon Sep 17 00:00:00 2001
From: hololeap <hololeap@protonmail.com>
Date: Sat, 7 Feb 2026 14:05:29 -0700
Subject: [PATCH 1/1] Migrate to cabal-doctest

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.

Bug: https://github.com/gentoo-haskell/gentoo-haskell/issues/1231
Signed-off-by: hololeap <hololeap@protonmail.com>
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,23 @@
+{-# LANGUAGE CPP #-}
+
+module Main (main) where
+
+#ifndef MIN_VERSION_cabal_doctest
+#define MIN_VERSION_cabal_doctest(x,y,z) 0
+#endif
+
+#if MIN_VERSION_cabal_doctest(1,0,9)
+
+import Distribution.Extra.Doctest ( defaultMainWithDoctests )
+
+main :: IO ()
+main = defaultMainWithDoctests "statistics-doctests"
+
+#else
+
+import Distribution.Simple
+
+main :: IO ()
+main = defaultMain
+
+#endif
--- a/statistics.cabal
+++ b/statistics.cabal
@@ -1,5 +1,5 @@
 cabal-version:  3.0
-build-type:     Simple
+build-type:     Custom
 
 name:           statistics
 version:        0.16.5.0
@@ -34,6 +34,11 @@ maintainer:     Alexey Khudaykov <alexey.skladnoy@gmail.com>
 copyright:      2009-2014 Bryan O'Sullivan
 category:       Math, Statistics
 
+custom-setup
+  setup-depends:
+    , base
+    , cabal-doctest >=1.0.9 && <1.1
+
 extra-source-files:
   README.markdown
   examples/kde/KDE.hs
@@ -207,7 +212,6 @@ test-suite statistics-doctests
     buildable: False
   build-depends:
             base       -any
-          , statistics -any
           , doctest    >=0.15 && <0.25
 
 -- We want to be able to build benchmarks using both tasty-bench and tasty-papi.
--- a/tests/doctest.hs
+++ b/tests/doctest.hs
@@ -1,5 +1,11 @@
 import Test.DocTest (doctest)
+import Build_doctests (flags, pkgs, module_sources)
+import GHC.IO.Encoding (setLocaleEncoding)
+import System.IO (utf8)
 
 main :: IO ()
-main = doctest ["-XHaskell2010", "Statistics"]
+main = do
+    setLocaleEncoding utf8
+    let oldFlags = ["-XHaskell2010"]
+    doctest $ flags ++ oldFlags ++ pkgs ++ module_sources
 
-- 
2.52.0