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/audio/espeak/default.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv, fetchurl, unzip, portaudio }:
+
+stdenv.mkDerivation rec {
+  pname = "espeak";
+  version = "1.48.04";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/espeak/espeak-${version}-source.zip";
+    sha256 = "0n86gwh9pw0jqqpdz7mxggllfr8k0r7pc67ayy7w5z6z79kig6mz";
+  };
+
+  nativeBuildInputs = [ unzip ];
+  buildInputs = [ portaudio ];
+
+  patches = [
+    ./gcc6.patch
+  ];
+
+  prePatch = ''
+    sed -e s,/bin/ln,ln,g -i src/Makefile
+    sed -e 's,^CXXFLAGS=-O2,CXXFLAGS=-O2 -D PATH_ESPEAK_DATA=\\\"$(DATADIR)\\\",' -i src/Makefile
+  '' + (if portaudio.api_version == 19 then ''
+    cp src/portaudio19.h src/portaudio.h
+  '' else "");
+
+  configurePhase = ''
+    cd src
+    makeFlags="PREFIX=$out DATADIR=$out/share/espeak-data"
+  '';
+
+  meta = with lib; {
+    description = "Compact open source software speech synthesizer";
+    homepage = "http://espeak.sourceforge.net/";
+    license = licenses.gpl3Plus;
+    platforms = platforms.linux;
+  };
+}