From 8b5e6b7711b19baded1e972f98386d1dd4bb7b14 Mon Sep 17 00:00:00 2001
From: Austin Seipp <aseipp@pobox.com>
Date: Sat, 12 Jan 2019 15:29:35 -0600
Subject: [PATCH] icestorm: minor cleanup with pythonPkg.interpreter [NFC]

Suggested cleanup by @dotlambda. See:

  https://github.com/NixOS/nixpkgs/commit/18839e1cc1a0c2ee787a8990809141cf43e1848c#commitcomment-31917295

Signed-off-by: Austin Seipp <aseipp@pobox.com>
---
 pkgs/development/tools/icestorm/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/tools/icestorm/default.nix b/pkgs/development/tools/icestorm/default.nix
index 0d96ec02c4ca..5cec122950f0 100644
--- a/pkgs/development/tools/icestorm/default.nix
+++ b/pkgs/development/tools/icestorm/default.nix
@@ -6,7 +6,7 @@
 let
   pypyCompatible = stdenv.isx86_64; /* pypy3 seems broken on i686 */
   pythonPkg      = if pypyCompatible then pypy3 else python3;
-  pythonInterp   = if pypyCompatible then "pypy3" else "python3";
+  pythonInterp   = pythonPkg.interpreter;
 in
 
 stdenv.mkDerivation rec {
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
     for x in $(find . -type f -iname '*.py'); do
       substituteInPlace "$x" \
-        --replace '/usr/bin/env python3' '${pythonPkg}/bin/${pythonInterp}'
+        --replace '/usr/bin/env python3' '${pythonInterp}'
     done
   '';