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/servers/sql/postgresql/ext/plv8.nix

@@ -0,0 +1,87 @@
+{ lib, stdenv, fetchFromGitHub, v8, perl, postgresql
+# For test
+, runCommand, coreutils, gnugrep }:
+
+let self = stdenv.mkDerivation rec {
+  pname = "plv8";
+  version = "3.0.0";
+
+  nativeBuildInputs = [ perl ];
+  buildInputs = [ v8 postgresql ];
+
+  src = fetchFromGitHub {
+    owner = "plv8";
+    repo = "plv8";
+    rev = "v${version}";
+    sha256 = "KJz8wnGcTXnVn6umpP+UquuJTtQrkBTJ33rB/JIH4kU=";
+  };
+
+  makefile = "Makefile.shared";
+
+  buildFlags = [ "all" ];
+
+  makeFlags = [
+    # Nixpkgs build a v8 monolith instead of separate v8_libplatform.
+    "V8_OUTDIR=${v8}/lib"
+  ];
+
+  installFlags = [
+    # PGXS only supports installing to postgresql prefix so we need to redirect this
+    "DESTDIR=${placeholder "out"}"
+  ];
+
+  preConfigure = ''
+    # We build V8 as a monolith, so this is unnecessary.
+    substituteInPlace Makefile.shared --replace "-lv8_libplatform" ""
+    patchShebangs ./generate_upgrade.sh
+    substituteInPlace generate_upgrade.sh \
+      --replace " 2.3.10)" " 2.3.10 2.3.11 2.3.12 2.3.13 2.3.14 2.3.15)"
+  '';
+
+  postInstall = ''
+    # Move the redirected to proper directory.
+    # There appear to be no references to the install directories
+    # so changing them does not cause issues.
+    mv "$out/nix/store"/*/* "$out"
+    rmdir "$out/nix/store"/* "$out/nix/store" "$out/nix"
+  '';
+
+  NIX_CFLAGS_COMPILE = [
+    # V8 depends on C++14.
+    "-std=c++14"
+    # Without this, PostgreSQL will crash at runtime.
+    # The flags are only included in Makefile, not Makefile.shared.
+    # https://github.com/plv8/plv8/pull/469
+    "-DJSONB_DIRECT_CONVERSION" "-DV8_COMPRESS_POINTERS=1" "-DV8_31BIT_SMIS_ON_64BIT_ARCH=1"
+  ];
+
+  passthru.tests.smoke = runCommand "${pname}-test" {} ''
+    export PATH=${lib.makeBinPath [ (postgresql.withPackages (_: [self])) coreutils gnugrep ]}
+    db="$PWD/testdb"
+    initdb "$db"
+    postgres -k "$db" -D "$db" &
+    pid="$!"
+
+    for i in $(seq 1 100); do
+      if psql -h "$db" -d postgres -c "" 2>/dev/null; then
+        break
+      elif ! kill -0 "$pid"; then
+        exit 1
+      else
+        sleep 0.1
+      fi
+    done
+
+    psql -h "$db" -d postgres -c 'CREATE EXTENSION plv8; DO $$ plv8.elog(NOTICE, plv8.version); $$ LANGUAGE plv8;' 2> "$out"
+    grep -q "${version}" "$out"
+    kill -0 "$pid"
+  '';
+
+  meta = with lib; {
+    description = "V8 Engine Javascript Procedural Language add-on for PostgreSQL";
+    homepage = "https://plv8.github.io/";
+    maintainers = with maintainers; [ volth marsam ];
+    platforms = [ "x86_64-linux" ];
+    license = licenses.postgresql;
+  };
+}; in self