From 0ed9de25468515928415ac1bd9c7cceaa6bba6fa Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas@tuxera.com>
Date: Mon, 15 Jan 2018 00:03:38 +0200
Subject: [PATCH] gnuplot: Use quoting syntax that's compatible with old and
 new Nix versions

There is probably a way to have it work with substituteInPlace, but
using sed is a cheap solution to not having to figure out how to escape
"'$'" in Nix that works in both versions.

Issue #31179.
Fixes #33833.
---
 pkgs/tools/graphics/gnuplot/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/tools/graphics/gnuplot/default.nix b/pkgs/tools/graphics/gnuplot/default.nix
index 8aa14220250..a177f33bb37 100644
--- a/pkgs/tools/graphics/gnuplot/default.nix
+++ b/pkgs/tools/graphics/gnuplot/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
 
   postPatch = ''
     # lrelease is in qttools, not in qtbase.
-    substituteInPlace configure --replace '$'{QT5LOC}/lrelease lrelease
+    sed -i configure -e 's|''${QT5LOC}/lrelease|lrelease|'
   '';
 
   configureFlags = [