From d550bbb3c77a952f530c855e0f2745c2e7b09f9f Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Tue, 8 Feb 2022 12:39:45 +0100
Subject: [PATCH] haskellPackages.ihaskell: use enableSharedExecutable over
 adhoc flag

---
 pkgs/development/haskell-modules/configuration-nix.nix | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 035e8cda1ea6..032b2577c515 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -734,12 +734,9 @@ self: super: builtins.intersectAttrs super {
 
   # based on https://github.com/gibiansky/IHaskell/blob/aafeabef786154d81ab7d9d1882bbcd06fc8c6c4/release.nix
   ihaskell = overrideCabal (drv: {
-    configureFlags = (drv.configureFlags or []) ++ [
-      # ihaskell's cabal file forces building a shared executable,
-      # but without passing --enable-executable-dynamic, the RPATH
-      # contains /build/ and leads to a build failure with nix
-      "--enable-executable-dynamic"
-    ];
+    # ihaskell's cabal file forces building a shared executable, which we need
+    # to reflect here or RPATH will contain a reference to /build/.
+    enableSharedExecutables = true;
     preCheck = ''
       export HOME=$TMPDIR/home
       export PATH=$PWD/dist/build/ihaskell:$PATH