libnice: clean up

* format withn nixpkgs-fmt
* drop unnecessary flags
* do not propagate gupnp-igd (it is only in Requires.private)

pkgs/development/libraries/libnice/default.nix

@@ -1,4 +1,19 @@
-{ stdenv, fetchurl, fetchpatch, meson, ninja, pkgconfig, python3, gobject-introspection, gtk-doc, docbook_xsl, docbook_xml_dtd_412, glib, gupnp-igd, gst_all_1, gnutls }:
+{ stdenv
+, fetchurl
+, fetchpatch
+, meson
+, ninja
+, pkgconfig
+, python3
+, gobject-introspection
+, gtk-doc
+, docbook_xsl
+, docbook_xml_dtd_412
+, glib
+, gupnp-igd
+, gst_all_1
+, gnutls
+}:
 
 stdenv.mkDerivation rec {
   name = "libnice-0.1.16";
@@ -21,27 +36,40 @@ stdenv.mkDerivation rec {
   ];
 
   nativeBuildInputs = [
-    meson ninja pkgconfig python3 gobject-introspection
+    meson
+    ninja
+    pkgconfig
+    python3
+    gobject-introspection
+
+    # documentation
     gtk-doc
-    # Without these, enabling the 'gtk_doc' gives us `FAILED: meson-install`
+    docbook_xsl
-    docbook_xsl docbook_xml_dtd_412
+    docbook_xml_dtd_412
+  ];
+
+  buildInputs = [
+    gst_all_1.gstreamer
+    gst_all_1.gst-plugins-base
+    gnutls
+    gupnp-igd
+  ];
+
+  propagatedBuildInputs = [
+    glib
   ];
-  buildInputs = [ gst_all_1.gstreamer gst_all_1.gst-plugins-base gnutls ];
-  propagatedBuildInputs = [ glib gupnp-igd ];
 
   mesonFlags = [
-    # Enables all features, so that we know when new dependencies are necessary.
-    "-Dauto_features=enabled"
     "-Dgtk_doc=enabled" # Disabled by default as of libnice-0.1.15
     "-Dexamples=disabled" # requires many dependencies and probably not useful for our users
   ];
 
-  # TODO; see #53293 etc.
+  # Tests are flaky
-  #doCheck = true;
+  # see https://github.com/NixOS/nixpkgs/pull/53293#issuecomment-453739295
+  doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://nice.freedesktop.org/wiki/;
+    description = "GLib ICE implementation";
-    description = "The GLib ICE implementation";
     longDescription = ''
       Libnice is an implementation of the IETF's Interactice Connectivity
       Establishment (ICE) standard (RFC 5245) and the Session Traversal
@@ -49,6 +77,7 @@ stdenv.mkDerivation rec {
 
       It provides a GLib-based library, libnice and a Glib-free library,
       libstun as well as GStreamer elements.'';
+    homepage = "https://nice.freedesktop.org/wiki/";
     platforms = platforms.linux;
     license = with licenses; [ lgpl21 mpl11 ];
   };