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/science/logic/cryptoverif/default.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv, fetchurl, ocaml }:
+
+stdenv.mkDerivation rec {
+  pname = "cryptoverif";
+  version = "2.05";
+
+  src = fetchurl {
+    url    = "http://prosecco.gforge.inria.fr/personal/bblanche/cryptoverif/cryptoverif${version}.tar.gz";
+    sha256 = "sha256-F5eVN5ATYo9Ivpi2eYh96ktuTWUeoqgWMR4BqHu8EFs=";
+  };
+
+  buildInputs = [ ocaml ];
+
+  /* Fix up the frontend to load the 'default' cryptoverif library
+  ** from under $out/libexec. By default, it expects to find the files
+  ** in $CWD which doesn't work. */
+  patchPhase = ''
+    substituteInPlace ./src/syntax.ml \
+      --replace \"default\" \"$out/libexec/default\"
+  '';
+
+  buildPhase = "./build";
+  installPhase = ''
+    mkdir -p $out/bin $out/libexec
+    cp ./cryptoverif   $out/bin
+    cp ./default.cvl   $out/libexec
+    cp ./default.ocvl  $out/libexec
+  '';
+
+  meta = {
+    description = "Cryptographic protocol verifier in the computational model";
+    homepage    = "https://prosecco.gforge.inria.fr/personal/bblanche/cryptoverif/";
+    license     = lib.licenses.cecill-b;
+    platforms   = lib.platforms.unix;
+    maintainers = [ lib.maintainers.thoughtpolice ];
+  };
+}