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/tools/analysis/garcosim/tracefilegen/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+
+  pname = "tracefilegen";
+  version = "unstable-2017-05-13";
+
+  src = fetchFromGitHub {
+    owner = "GarCoSim";
+    repo = "TraceFileGen";
+    rev = "0ebfd1fdb54079d4bdeaa81fc9267ecb9f016d60";
+    sha256 = "1gsx18ksgz5gwl3v62vgrmhxc0wc99i74qwhpn0h57zllk41drjc";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  patches = [ ./gcc7.patch ];
+
+  installPhase = ''
+    install -Dm755 TraceFileGen $out/bin/TraceFileGen
+    mkdir -p $out/share/doc/${pname}-${version}/
+    cp -ar $src/Documentation/html $out/share/doc/${pname}-${version}/.
+  '';
+
+  meta = with lib; {
+    description = "Automatically generate all types of basic memory management operations and write into trace files";
+    homepage = "https://github.com/GarCoSim";
+    maintainers = [ maintainers.cmcdragonkai ];
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+
+}

pkgs/development/tools/analysis/garcosim/tracefilegen/gcc7.patch

@@ -0,0 +1,13 @@
+diff --git a/Utils/Logger.cpp b/Utils/Logger.cpp
+index 747cd63..e3efdf1 100644
+--- a/Utils/Logger.cpp
++++ b/Utils/Logger.cpp
+@@ -29,7 +29,7 @@ Logger::Logger(char* tracepath) {
+ 	trace = fopen(tracepath, "w");
+ 
+ 	// dot file is not used, set null as default value
+-	dot = '\0';
++	dot = nullptr;
+ 	//dot = fopen("gcKons.dot", "w");
+ 	//fprintf(dot,"digraph G {\n");
+ }