From 5ba76e94ec8d4d90f1f38b2ac9a2f5800fee0173 Mon Sep 17 00:00:00 2001
From: Aaron Lindsay <aerialx@users.noreply.github.com>
Date: Sat, 30 Mar 2019 15:54:39 -0700
Subject: [PATCH] mspdebug: optional runtime dependency on TI libmsp430

---
 pkgs/development/misc/msp430/mspdebug.nix | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/misc/msp430/mspdebug.nix b/pkgs/development/misc/msp430/mspdebug.nix
index 181907a55441..471dd5b31229 100644
--- a/pkgs/development/misc/msp430/mspdebug.nix
+++ b/pkgs/development/misc/msp430/mspdebug.nix
@@ -1,14 +1,18 @@
 { stdenv
 , fetchFromGitHub
+, autoPatchelfHook
 , libusb-compat-0_1
 , readline ? null
 , enableReadline ? true
 , hidapi ? null
 , pkg-config ? null
+, mspds ? null
+, enableMspds ? false
 }:
 
 assert stdenv.isDarwin -> hidapi != null && pkg-config != null;
 assert enableReadline -> readline != null;
+assert enableMspds -> mspds != null;
 
 stdenv.mkDerivation rec {
   version = "0.25";
@@ -21,7 +25,8 @@ stdenv.mkDerivation rec {
   };
 
   enableParallelBuilding = true;
-  nativeBuildInputs = stdenv.lib.optional stdenv.isDarwin pkg-config;
+  nativeBuildInputs = stdenv.lib.optional stdenv.isDarwin pkg-config
+  ++ stdenv.lib.optional (enableMspds && stdenv.isLinux) autoPatchelfHook;
   buildInputs = [ libusb-compat-0_1 ]
   ++ stdenv.lib.optional stdenv.isDarwin hidapi
   ++ stdenv.lib.optional enableReadline readline;
@@ -34,6 +39,15 @@ stdenv.mkDerivation rec {
     substituteInPlace Makefile --replace brew true
   '';
 
+  # TODO: wrap with MSPDEBUG_TILIB_PATH env var instead of these rpath fixups in 0.26+
+  runtimeDependencies = stdenv.lib.optional enableMspds mspds;
+  postFixup = stdenv.lib.optionalString (enableMspds && stdenv.isDarwin) ''
+    # autoPatchelfHook only works on linux so...
+    for dep in $runtimeDependencies; do
+      install_name_tool -add_rpath $dep/lib $out/bin/$pname
+    done
+  '';
+
   installFlags = [ "PREFIX=$(out)" "INSTALL=install" ];
   makeFlags = [ "UNAME_S=$(unameS)" ] ++
     stdenv.lib.optional (!enableReadline) "WITHOUT_READLINE=1";