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/text/popfile/default.nix

@@ -0,0 +1,60 @@
+{ lib, stdenv, fetchzip, makeWrapper, perlPackages,
+... }:
+
+stdenv.mkDerivation rec {
+  appname = "popfile";
+  version = "1.1.3";
+  name = "${appname}-${version}";
+
+  src = fetchzip {
+    url = "https://getpopfile.org/downloads/${appname}-${version}.zip";
+    sha256 = "0gcib9j7zxk8r2vb5dbdz836djnyfza36vi8215nxcdfx1xc7l63";
+    stripRoot = false;
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = (with perlPackages; [
+    ## These are all taken from the popfile documentation as applicable to Linux
+    ## https://getpopfile.org/docs/howtos:allplatformsrequireperl
+    perl
+    DBI
+    DBDSQLite
+    HTMLTagset
+    TimeDate # == DateParse
+    HTMLTemplate
+    # IO::Socket::Socks is not in nixpkgs
+    # IOSocketSocks
+    IOSocketSSL
+    NetSSLeay
+    SOAPLite
+  ]);
+
+  installPhase = ''
+    mkdir -p $out/bin
+    # I user `cd` rather than `cp $out/* ...` b/c the * breaks syntax
+    # highlighting in emacs for me.
+    cd $src
+    cp -r * $out/bin
+    cd $out/bin
+    chmod +x *.pl
+
+    find $out -name '*.pl' -executable | while read path; do
+      wrapProgram "$path" \
+        --prefix PERL5LIB : $PERL5LIB:$out/bin \
+        --set POPFILE_ROOT $out/bin \
+        --run 'export POPFILE_USER=''${POPFILE_USER:-$HOME/.popfile}' \
+        --run 'test -d "$POPFILE_USER" || mkdir -m 0700 -p "$POPFILE_USER"'
+    done
+  '';
+
+  meta = {
+    description = "An email classification system that automatically sorts messages and fights spam";
+    homepage = "https://getpopfile.org/";
+    license = lib.licenses.gpl2;
+
+    # Should work on macOS, but havent tested it.
+    # Windows support is more complicated.
+    # https://getpopfile.org/docs/faq:systemrequirements
+    platforms = lib.platforms.linux;
+  };
+}