From 3dc650b7800a0aa2290535b1ea97eaccf143f858 Mon Sep 17 00:00:00 2001
From: Andrew Brooks <andrew.brooks@flightaware.com>
Date: Fri, 30 Apr 2021 17:49:16 -0500
Subject: [PATCH] tclx: Leverage tcl.mkTclDerivation

---
 pkgs/development/libraries/tclx/default.nix | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/pkgs/development/libraries/tclx/default.nix b/pkgs/development/libraries/tclx/default.nix
index 85eae730575f..9582aabf654a 100644
--- a/pkgs/development/libraries/tclx/default.nix
+++ b/pkgs/development/libraries/tclx/default.nix
@@ -1,6 +1,6 @@
-{ lib, stdenv, fetchurl, tcl }:
+{ lib, fetchurl, tcl }:
 
-stdenv.mkDerivation rec {
+tcl.mkTclDerivation rec {
   name = "tclx-${version}.${patch}";
   version = "8.4";
   patch = "1";
@@ -10,13 +10,11 @@ stdenv.mkDerivation rec {
     sha256 = "1v2qwzzidz0is58fd1p7wfdbscxm3ip2wlbqkj5jdhf6drh1zd59";
   };
 
-  passthru = {
-    libPrefix = ""; # Using tclx${version} did not work
-  };
-
-  buildInputs = [ tcl ];
-
-  configureFlags = [ "--with-tcl=${tcl}/lib" "--exec-prefix=\${prefix}" ];
+  # required in order for tclx to properly detect tclx.tcl at runtime
+  postInstall =
+    let tclXPkg = "tclx${version}";
+        tclXLib = "$prefix/lib/${tclXPkg}";
+     in "ln -s ${tclXLib} ${tclXLib}/${tclXPkg}";
 
   meta = {
     homepage = "http://tclx.sourceforge.net/";