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/development/libraries/gstreamer/core/default.nix

@@ -0,0 +1,118 @@
+{ stdenv
+, fetchurl
+, meson
+, ninja
+, pkg-config
+, gettext
+, bison
+, flex
+, python3
+, glib
+, makeWrapper
+, libcap
+, libunwind
+, darwin
+, elfutils # for libdw
+, bash-completion
+, lib
+, CoreServices
+, withIntrospection ? stdenv.buildPlatform == stdenv.hostPlatform
+, gobject-introspection
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gstreamer";
+  version = "1.20.1";
+
+  outputs = [
+    "bin"
+    "out"
+    "dev"
+    # "devdoc" # disabled until `hotdoc` is packaged in nixpkgs, see:
+    # - https://github.com/NixOS/nixpkgs/pull/98767
+    # - https://github.com/NixOS/nixpkgs/issues/98769#issuecomment-702296551
+  ];
+
+  src = fetchurl {
+    url = "https://gstreamer.freedesktop.org/src/${pname}/${pname}-${version}.tar.xz";
+    sha256 = "0cghi6n4nhdbajz3wqcgbh5xm94myvnqgsi9g2bz9n1s9904l2fy";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    gettext
+    bison
+    flex
+    python3
+    makeWrapper
+    glib
+    bash-completion
+
+    # documentation
+    # TODO add hotdoc here
+  ] ++ lib.optionals stdenv.isLinux [
+    libcap # for setcap binary
+  ] ++ lib.optionals withIntrospection [
+    gobject-introspection
+  ];
+
+  buildInputs = [
+    bash-completion
+  ] ++ lib.optionals stdenv.isLinux [
+    libcap
+    libunwind
+    elfutils
+  ] ++ lib.optionals withIntrospection [
+    gobject-introspection
+  ] ++ lib.optionals stdenv.isDarwin [
+    CoreServices
+  ];
+
+  propagatedBuildInputs = [
+    glib
+  ];
+
+  mesonFlags = [
+    "-Ddbghelp=disabled" # not needed as we already provide libunwind and libdw, and dbghelp is a fallback to those
+    "-Dexamples=disabled" # requires many dependencies and probably not useful for our users
+    "-Ddoc=disabled" # `hotdoc` not packaged in nixpkgs as of writing
+    "-Dintrospection=${if withIntrospection then "enabled" else "disabled"}"
+  ] ++ lib.optionals stdenv.isDarwin [
+    # darwin.libunwind doesn't have pkg-config definitions so meson doesn't detect it.
+    "-Dlibunwind=disabled"
+    "-Dlibdw=disabled"
+  ];
+
+  postPatch = ''
+    patchShebangs \
+      gst/parse/get_flex_version.py \
+      gst/parse/gen_grammar.py.in \
+      gst/parse/gen_lex.py.in \
+      libs/gst/helpers/ptp_helper_post_install.sh \
+      scripts/extract-release-date-from-doap-file.py
+  '';
+
+  postInstall = ''
+    for prog in "$bin/bin/"*; do
+        # We can't use --suffix here due to quoting so we craft the export command by hand
+        wrapProgram "$prog" --run 'export GST_PLUGIN_SYSTEM_PATH_1_0=$GST_PLUGIN_SYSTEM_PATH_1_0''${GST_PLUGIN_SYSTEM_PATH_1_0:+:}$(unset _tmp; for profile in $NIX_PROFILES; do _tmp="$profile/lib/gstreamer-1.0''${_tmp:+:}$_tmp"; done; printf '%s' "$_tmp")'
+    done
+  '';
+
+  preFixup = ''
+    moveToOutput "share/bash-completion" "$bin"
+  '';
+
+  setupHook = ./setup-hook.sh;
+
+  meta = with lib ;{
+    description = "Open source multimedia framework";
+    homepage = "https://gstreamer.freedesktop.org";
+    license = licenses.lgpl2Plus;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ ttuegel matthewbauer ];
+  };
+}

pkgs/development/libraries/gstreamer/core/setup-hook.sh

@@ -0,0 +1,9 @@
+addGstreamer1LibPath () {
+    if test -d "$1/lib/gstreamer-1.0"
+    then
+        export GST_PLUGIN_SYSTEM_PATH_1_0="${GST_PLUGIN_SYSTEM_PATH_1_0-}${GST_PLUGIN_SYSTEM_PATH_1_0:+:}$1/lib/gstreamer-1.0"
+    fi
+}
+
+addEnvHooks "$hostOffset" addGstreamer1LibPath
+