From 1a185c0b32fc76ad995cb013a4bc87a22595af13 Mon Sep 17 00:00:00 2001
From: Dominik Honnef <dominik@honnef.co>
Date: Thu, 3 Nov 2022 15:22:07 +0100
Subject: [PATCH] deskew: ensure libtiff can be found at runtime

---
 pkgs/applications/graphics/deskew/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/applications/graphics/deskew/default.nix b/pkgs/applications/graphics/deskew/default.nix
index c19b5de2b69c..ad3a20d2431c 100644
--- a/pkgs/applications/graphics/deskew/default.nix
+++ b/pkgs/applications/graphics/deskew/default.nix
@@ -18,6 +18,12 @@ stdenv.mkDerivation rec {
   buildPhase = ''
     runHook preBuild
     patchShebangs ./Scripts
+
+    # Deskew insists on using dlopen to load libtiff, we insist it links against it.
+    sed -i -e 's/{$DEFINE DYNAMIC_DLL_LOADING}//' Imaging/LibTiff/LibTiffDynLib.pas
+    sed -i -e 's/if LibTiffDynLib\.LoadTiffLibrary then//' Imaging/LibTiff/ImagingTiffLib.pas
+    # Make sure libtiff is in the RPATH, so that Nix can find and track the runtime dependency
+    export NIX_LDFLAGS="$NIX_LDFLAGS -rpath ${lib.getLib libtiff}/lib"
     pushd Scripts && ./compile.sh && popd
     runHook postBuild
   '';