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-rw-r--r--pkgs/os-specific/linux/alsa-plugins/default.nix20
1 files changed, 10 insertions, 10 deletions
diff --git a/pkgs/os-specific/linux/alsa-plugins/default.nix b/pkgs/os-specific/linux/alsa-plugins/default.nix
index dc36757e020e..2ae39d4cf16d 100644
--- a/pkgs/os-specific/linux/alsa-plugins/default.nix
+++ b/pkgs/os-specific/linux/alsa-plugins/default.nix
@@ -1,21 +1,21 @@
-{stdenv, fetchurl, lib, pkgconfig, alsaLib, pulseaudio, jackaudio}:
-stdenv.mkDerivation {
+{ stdenv, fetchurl, lib, pkgconfig, alsaLib, pulseaudio ? null, jackaudio ? null }:
+
+stdenv.mkDerivation rec {
   name = "alsa-plugins-1.0.23";
 
   src = fetchurl {
-    url = ftp://ftp.alsa-project.org/pub/plugins/alsa-plugins-1.0.23.tar.bz2;
+    url = "ftp://ftp.alsa-project.org/pub/plugins/${name}.tar.bz2";
     sha256 = "10ri5dpmhk028r0qvajswh2xl40kjd600h7hykq03vrkmn8jf6sw";
   };
 
-  # TODO make backends such as jack, pulseaudio optional
-  buildInputs = [pkgconfig alsaLib pulseaudio jackaudio];
+  buildInputs =
+    [ pkgconfig alsaLib ]
+    ++ stdenv.lib.optional (pulseaudio != null) pulseaudio
+    ++ stdenv.lib.optional (jackaudio != null) jackaudio;
 
   meta = { 
-    description = "plugins for alsa eg conneckt jack, pluseaudio applications easily to the daemons using alsa devices";
-    longDescription = "
-      use it like this: export ALSA_PLUGIN_DIRS=$(nix-build -A alsaPlugins)/lib/alsa-lib
-    ";
-    homepage = http://alsa-project.org;
+    description = "Various plugins for ALSA";
+    homepage = http://alsa-project.org/;
     license = "GPL2.1";
     maintainers = [lib.maintainers.marcweber];
     platforms = lib.platforms.linux;