uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/kde/kdenlive/default.nix

@@ -0,0 +1,109 @@
+{ mkDerivation
+, lib
+, extra-cmake-modules
+, breeze-icons
+, breeze-qt5
+, kdoctools
+, kconfig
+, kcrash
+, kguiaddons
+, kiconthemes
+, ki18n
+, kinit
+, kdbusaddons
+, knotifications
+, knewstuff
+, karchive
+, knotifyconfig
+, kplotting
+, ktextwidgets
+, mlt
+, shared-mime-info
+, libv4l
+, kfilemetadata
+, ffmpeg-full
+, frei0r
+, phonon-backend-gstreamer
+, qtdeclarative
+, qtmultimedia
+, qtnetworkauth
+, qtquickcontrols2
+, qtscript
+, rttr
+, kpurpose
+, kdeclarative
+, wrapGAppsHook
+}:
+
+mkDerivation {
+  pname = "kdenlive";
+  nativeBuildInputs = [
+    extra-cmake-modules
+    kdoctools
+  ];
+  buildInputs = [
+    breeze-icons
+    breeze-qt5
+    kconfig
+    kcrash
+    kdbusaddons
+    kfilemetadata
+    kguiaddons
+    ki18n
+    kiconthemes
+    kinit
+    knotifications
+    knewstuff
+    karchive
+    knotifyconfig
+    kplotting
+    ktextwidgets
+    mlt
+    phonon-backend-gstreamer
+    qtdeclarative
+    qtmultimedia
+    qtnetworkauth
+    qtquickcontrols2
+    qtscript
+    shared-mime-info
+    libv4l
+    ffmpeg-full
+    frei0r
+    rttr
+    kpurpose
+    kdeclarative
+    wrapGAppsHook
+  ];
+  # Both MLT and FFMpeg paths must be set or Kdenlive will complain that it
+  # doesn't find them. See:
+  # https://github.com/NixOS/nixpkgs/issues/83885
+  patches = [ ./mlt-path.patch ./ffmpeg-path.patch ];
+  inherit mlt;
+  ffmpeg = ffmpeg-full;
+  postPatch =
+    # Module Qt5::Concurrent must be included in `find_package` before it is used.
+    ''
+      sed -i CMakeLists.txt -e '/find_package(Qt5 REQUIRED/ s|)| Concurrent)|'
+      substituteAllInPlace src/kdenlivesettings.kcfg
+    '';
+
+  dontWrapGApps = true;
+
+  # Frei0r path needs to be set too or Kdenlive will complain. See:
+  # https://github.com/NixOS/nixpkgs/issues/83885
+  # https://github.com/NixOS/nixpkgs/issues/29614#issuecomment-488849325
+  qtWrapperArgs = [
+    "--set FREI0R_PATH ${frei0r}/lib/frei0r-1"
+  ];
+
+  preFixup = ''
+    qtWrapperArgs+=("''${gappsWrapperArgs[@]}")
+  '';
+
+  meta = {
+    homepage = "https://apps.kde.org/kdenlive/";
+    description = "Video editor";
+    license = with lib.licenses; [ gpl2Plus ];
+    maintainers = with lib.maintainers; [ turion ];
+  };
+}

pkgs/applications/kde/kdenlive/ffmpeg-path.patch

@@ -0,0 +1,25 @@
+diff --git a/src/kdenlivesettings.kcfg b/src/kdenlivesettings.kcfg
+index 5edad5ae7..d35347a40 100644
+--- a/src/kdenlivesettings.kcfg
++++ b/src/kdenlivesettings.kcfg
+@@ -403,17 +403,17 @@
+ 
+     <entry name="ffmpegpath" type="Path">
+       <label>FFmpeg / Libav binary path.</label>
+-      <default></default>
++      <default>@ffmpeg@/bin/ffmpeg</default>
+     </entry>
+ 
+     <entry name="ffplaypath" type="Path">
+       <label>FFplay / avplay binary path.</label>
+-      <default></default>
++      <default>@ffmpeg@/bin/ffplay</default>
+     </entry>
+ 
+     <entry name="ffprobepath" type="Path">
+       <label>FFprobe / avprobe binary path.</label>
+-      <default></default>
++      <default>@ffmpeg@/bin/ffprobe</default>
+     </entry>
+ 
+     <entry name="mltthreads" type="Int">

pkgs/applications/kde/kdenlive/mlt-path.patch

@@ -0,0 +1,22 @@
+diff -ruN old/src/kdenlivesettings.kcfg new/src/kdenlivesettings.kcfg
+--- old/src/kdenlivesettings.kcfg	2019-09-10 23:20:27.555392353 -0400
++++ new/src/kdenlivesettings.kcfg	2019-09-10 23:25:47.533964155 -0400
+@@ -378,14 +378,14 @@
+ </group>
+ 
+   <group name="env">
+-    <entry name="mltpath" type="Path">
++    <entry name="mltpath" type="Path" hidden="true">
+       <label>Mlt framework install path.</label>
+-      <default></default>
++      <default>@mlt@/share/mlt/profiles</default>
+     </entry>
+ 
+-    <entry name="rendererpath" type="Path">
++    <entry name="rendererpath" type="Path" hidden="true">
+       <label>Mlt melt renderer install path.</label>
+-      <default></default>
++      <default>@mlt@/bin/melt</default>
+     </entry>
+ 
+     <entry name="ffmpegpath" type="Path">