From 7bc2aaff0ed863308ed91b72226f8a2f49537d96 Mon Sep 17 00:00:00 2001
From: Profpatsch <mail@profpatsch.de>
Date: Fri, 21 Jun 2019 20:29:16 +0200
Subject: [PATCH] unp: improve file copying & fix manpage

---
 pkgs/tools/archivers/unp/default.nix | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/pkgs/tools/archivers/unp/default.nix b/pkgs/tools/archivers/unp/default.nix
index 79c8e2f20ecc..106f75ab3769 100644
--- a/pkgs/tools/archivers/unp/default.nix
+++ b/pkgs/tools/archivers/unp/default.nix
@@ -1,11 +1,12 @@
 { stdenv, lib, fetchurl, makeWrapper, perl, unrar, unzip, gzip, file, extraBackends ? [] }:
 
-stdenv.mkDerivation rec {
+let
+  runtime_bins =  [ file unrar unzip gzip ] ++ extraBackends;
+
+in stdenv.mkDerivation rec {
   name = "unp-${version}";
   version = "2.0-pre7";
-
-  runtime_bins =  [ file unrar unzip gzip ] ++ extraBackends;
-  buildInputs = [ perl makeWrapper ] ++ runtime_bins;
+  buildInputs = [ perl makeWrapper ];
 
   src = fetchurl {
     # url = "http://http.debian.net/debian/pool/main/u/unp/unp_2.0~pre7+nmu1.tar.bz2";
@@ -18,10 +19,10 @@ stdenv.mkDerivation rec {
   buildPhase = "true";
   installPhase = ''
   mkdir -p $out/bin
-  mkdir -p $out/share/man
-  cp unp $out/bin/
-  cp ucat $out/bin/
-  cp debian/unp.1 $out/share/man
+  mkdir -p $out/share/man/man1
+  install ./unp $out/bin/unp
+  install ./ucat $out/bin/ucat
+  cp debian/unp.1 $out/share/man/man1
 
   wrapProgram $out/bin/unp \
     --prefix PATH : ${lib.makeBinPath runtime_bins}