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/botan/generic.nix

@@ -0,0 +1,57 @@
+{ lib, stdenv, fetchurl, python3, bzip2, zlib, gmp, openssl, boost
+# Passed by version specific builders
+, baseVersion, revision, sha256
+, sourceExtension ? "tar.xz"
+, extraConfigureFlags ? ""
+, extraPatches ? [ ]
+, postPatch ? null
+, knownVulnerabilities ? [ ]
+, CoreServices
+, Security
+, ...
+}:
+
+stdenv.mkDerivation rec {
+  pname = "botan";
+  version = "${baseVersion}.${revision}";
+
+  src = fetchurl {
+    name = "Botan-${version}.${sourceExtension}";
+    urls = [
+       "http://files.randombit.net/botan/v${baseVersion}/Botan-${version}.${sourceExtension}"
+       "http://botan.randombit.net/releases/Botan-${version}.${sourceExtension}"
+    ];
+    inherit sha256;
+  };
+  patches = extraPatches;
+  inherit postPatch;
+
+  buildInputs = [ python3 bzip2 zlib gmp openssl boost ]
+    ++ lib.optionals stdenv.isDarwin [ CoreServices Security ];
+
+  configurePhase = ''
+    python configure.py --prefix=$out --with-bzip2 --with-zlib ${if openssl != null then "--with-openssl" else ""} ${extraConfigureFlags}${if stdenv.cc.isClang then " --cc=clang" else "" }
+  '';
+
+  enableParallelBuilding = true;
+
+  preInstall = ''
+    if [ -d src/scripts ]; then
+      patchShebangs src/scripts
+    fi
+  '';
+
+  postInstall = ''
+    cd "$out"/lib/pkgconfig
+    ln -s botan-*.pc botan.pc || true
+  '';
+
+  meta = with lib; {
+    description = "Cryptographic algorithms library";
+    maintainers = with maintainers; [ raskin ];
+    platforms = platforms.unix;
+    license = licenses.bsd2;
+    inherit knownVulnerabilities;
+  };
+  passthru.updateInfo.downloadPage = "http://files.randombit.net/botan/";
+}