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/science/math/sympow/default.nix

@@ -0,0 +1,76 @@
+{ lib, stdenv
+, fetchFromGitLab
+, makeWrapper
+, which
+, autoconf
+, help2man
+, file
+, pari
+}:
+
+stdenv.mkDerivation rec {
+  version = "2.023.6";
+  pname = "sympow";
+
+  src = fetchFromGitLab {
+    group = "rezozer";
+    owner = "forks";
+    repo = "sympow";
+    rev = "v${version}";
+    sha256 = "132l0xv00ld1svvv9wh99wfra4zzjv2885h2sq0dsl98wiyvi5zl";
+  };
+
+  patches = [ ./clean-extra-logfile-output-from-pari.patch ];
+
+  postUnpack = ''
+    patchShebangs .
+  '';
+
+  nativeBuildInputs = [
+    makeWrapper
+    which
+    autoconf
+    help2man
+    file
+    pari
+  ];
+
+  configurePhase = ''
+    runHook preConfigure
+    export PREFIX="$out"
+    export VARPREFIX="$out" # see comment on postInstall
+    ./Configure # doesn't take any options
+    runHook postConfigure
+  '';
+
+  # Usually, sympow has 3 levels of caching: statically distributed in /usr/,
+  # shared in /var and per-user in ~/.sympow. The shared cache assumes trust in
+  # other users and a shared /var is not compatible with nix's approach, so we
+  # set VARPREFIX to the read-only $out. This effectively disables shared
+  # caching. See https://trac.sagemath.org/ticket/3360#comment:36 and sympow's
+  # README for more details on caching.
+  # sympow will complain at runtime about the lack of write-permissions on the
+  # shared cache. We pass the `-quiet` flag by default to disable this.
+  postInstall = ''
+    wrapProgram "$out/bin/sympow" --add-flags '-quiet'
+  '';
+
+  # Example from the README as a sanity check.
+  doInstallCheck = true;
+  installCheckPhase = ''
+    export HOME="$TMP/home"
+    mkdir -p "$HOME"
+    "$out/bin/sympow" -sp 2p16 -curve "[1,2,3,4,5]" | grep '8.3705'
+  '';
+
+  meta = with lib; {
+    description = "Compute special values of symmetric power elliptic curve L-functions";
+    license = {
+      shortName = "sympow";
+      fullName = "Custom, BSD-like. See COPYING file.";
+      free = true;
+    };
+    maintainers = teams.sage.members;
+    platforms = platforms.linux;
+  };
+}