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/math/ginac/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchurl, cln, pkg-config, readline, gmp, python3 }:
+
+stdenv.mkDerivation rec {
+  pname = "ginac";
+  version = "1.8.2";
+
+  src = fetchurl {
+    url = "https://www.ginac.de/ginac-${version}.tar.bz2";
+    sha256 = "sha256-v811Gryviv3bg5WMKtInY6deokAyVT5QPumzjj6jtsM=";
+  };
+
+  propagatedBuildInputs = [ cln ];
+
+  buildInputs = [ readline ]
+    ++ lib.optional stdenv.isDarwin gmp;
+
+  nativeBuildInputs = [ pkg-config python3 ];
+
+  strictDeps = true;
+
+  preConfigure = ''
+    patchShebangs ginsh
+  '';
+
+  configureFlags = [ "--disable-rpath" ];
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "GiNaC is Not a CAS";
+    homepage = "https://www.ginac.de/";
+    maintainers = with maintainers; [ lovek323 ];
+    license = licenses.gpl2;
+    platforms = platforms.all;
+  };
+}