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/tools/X11/virtualgl/default.nix

@@ -0,0 +1,25 @@
+{ stdenv, lib
+, virtualglLib
+, virtualglLib_i686 ? null
+}:
+
+stdenv.mkDerivation {
+  pname = "virtualgl";
+  version = lib.getVersion virtualglLib;
+
+  paths = [ virtualglLib ];
+
+  buildCommand = ''
+    mkdir -p $out/bin
+    for i in ${virtualglLib}/bin/* ${virtualglLib}/bin/.vglrun*; do
+      ln -s "$i" $out/bin
+    done
+  '' + lib.optionalString (virtualglLib_i686 != null) ''
+    ln -sf ${virtualglLib_i686}/bin/.vglrun.vars32 $out/bin
+  '';
+
+  meta = {
+    platforms = lib.platforms.linux;
+    inherit (virtualglLib.meta) license;
+  };
+}

pkgs/tools/X11/virtualgl/lib.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchurl, cmake
+, libGL, libGLU, libXv, libXtst, libXi, libjpeg_turbo, fltk
+, xorg
+, opencl-headers, opencl-clhpp, ocl-icd
+}:
+
+stdenv.mkDerivation rec {
+  pname = "virtualgl-lib";
+  version = "2.6.5";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/virtualgl/VirtualGL-${version}.tar.gz";
+    sha256 = "1giin3jmcs6y616bb44bpz30frsmj9f8pz2vg7jvb9vcfc9456rr";
+  };
+
+  cmakeFlags = [ "-DVGL_SYSTEMFLTK=1" "-DTJPEG_LIBRARY=${libjpeg_turbo.out}/lib/libturbojpeg.so" ];
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  nativeBuildInputs = [ cmake ];
+
+  buildInputs = [ libjpeg_turbo libGL libGLU fltk
+    libXv libXtst libXi xorg.xcbutilkeysyms
+    opencl-headers opencl-clhpp ocl-icd
+  ];
+
+  fixupPhase = ''
+    substituteInPlace $out/bin/vglrun \
+      --replace "LD_PRELOAD=libvglfaker" "LD_PRELOAD=$out/lib/libvglfaker" \
+      --replace "LD_PRELOAD=libdlfaker" "LD_PRELOAD=$out/lib/libdlfaker" \
+      --replace "LD_PRELOAD=libgefaker" "LD_PRELOAD=$out/lib/libgefaker"
+  '';
+
+  meta = with lib; {
+    homepage = "http://www.virtualgl.org/";
+    description = "X11 GL rendering in a remote computer with full 3D hw acceleration";
+    license = licenses.wxWindows;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ abbradar ];
+  };
+}