From 8f92eff7311864d5bd909e6a07f7e3be47beaeb2 Mon Sep 17 00:00:00 2001
From: Robin Gloster <mail@glob.in>
Date: Fri, 11 Jan 2019 04:10:05 +0100
Subject: [PATCH] hoppet: fix sandboxed build

---
 pkgs/development/libraries/physics/hoppet/default.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/physics/hoppet/default.nix b/pkgs/development/libraries/physics/hoppet/default.nix
index 55714afbdce..9c379f6a347 100644
--- a/pkgs/development/libraries/physics/hoppet/default.nix
+++ b/pkgs/development/libraries/physics/hoppet/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, gfortran }:
+{ stdenv, fetchurl, gfortran, perl }:
 
 stdenv.mkDerivation rec {
   name = "hoppet-${version}";
@@ -10,9 +10,14 @@ stdenv.mkDerivation rec {
   };
 
   buildInputs = [ gfortran ];
+  nativeBuildInputs = [ perl ];
 
   enableParallelBuilding = true;
 
+  preConfigure = ''
+    patchShebangs .
+  '';
+
   meta = with stdenv.lib; {
     description = "Higher Order Perturbative Parton Evolution Toolkit";
     license     = licenses.gpl2;