From 57d862fecf6f69aa1786fcab202dce798e3b380c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20Kemetm=C3=BCller?= <josef.kemetmueller@gmail.com>
Date: Sun, 11 Mar 2018 00:15:41 +0100
Subject: [PATCH] pythonPackages.discid: fix darwin build

---
 pkgs/development/python-modules/discid/default.nix | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/python-modules/discid/default.nix b/pkgs/development/python-modules/discid/default.nix
index d237f366fdf..f3d403d9f2c 100644
--- a/pkgs/development/python-modules/discid/default.nix
+++ b/pkgs/development/python-modules/discid/default.nix
@@ -10,15 +10,17 @@ buildPythonPackage rec {
     sha256 = "78a3bf6c8377fdbe3d85e914a209ff97aa43e35605779639847b510ced31f7b9";
   };
 
-  patchPhase = ''
-    substituteInPlace discid/libdiscid.py \
-      --replace '_open_library(_LIB_NAME)' "_open_library('${libdiscid}/lib/libdiscid.so.0')"
-  '';
+  patchPhase =
+    let extension = stdenv.hostPlatform.extensions.sharedLibrary; in
+    ''
+      substituteInPlace discid/libdiscid.py \
+        --replace "_open_library(_LIB_NAME)" \
+                  "_open_library('${libdiscid}/lib/libdiscid${extension}')"
+    '';
 
   meta = with stdenv.lib; {
     description = "Python binding of libdiscid";
     homepage    = "https://python-discid.readthedocs.org/";
     license     = licenses.lgpl3Plus;
-    platforms   = platforms.linux;
   };
 }