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/arpack/default.nix

@@ -0,0 +1,62 @@
+{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake
+, gfortran, blas, lapack, eigen }:
+
+stdenv.mkDerivation rec {
+  pname = "arpack";
+  version = "3.8.0";
+
+  src = fetchFromGitHub {
+    owner = "opencollab";
+    repo = "arpack-ng";
+    rev = version;
+    sha256 = "sha256-nc710iLRqy/p3EaVgbEoCRzNJ9GpKqqQp33tbn7R6lA=";
+  };
+
+  patches = [
+    # https://github.com/opencollab/arpack-ng/pull/301
+    (fetchpatch {
+      name = "pkg-config-paths.patch";
+      url = "https://github.com/opencollab/arpack-ng/commit/47fc83cb371a9cc8a8c058097de5e0298cd548f5.patch";
+      excludes = [ "CHANGES" ];
+      sha256 = "1aijvrfsxkgzqmkzq2dmaj8q3jdpg2hwlqpfl8ddk9scv17gh9m8";
+    })
+  ];
+
+  nativeBuildInputs = [ cmake gfortran ];
+  buildInputs = assert (blas.isILP64 == lapack.isILP64); [
+    blas
+    lapack
+    eigen
+  ];
+
+  doCheck = true;
+
+  cmakeFlags = [
+    "-DBUILD_SHARED_LIBS=ON"
+    "-DINTERFACE64=${if blas.isILP64 then "1" else "0"}"
+  ];
+
+  preCheck = if stdenv.isDarwin then ''
+    export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH''${DYLD_LIBRARY_PATH:+:}`pwd`/lib:${blas}/lib:${lapack}/lib
+  '' else ''
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}`pwd`/lib
+  '' + ''
+    # Prevent tests from using all cores
+    export OMP_NUM_THREADS=2
+  '';
+
+  postFixup = lib.optionalString stdenv.isDarwin ''
+    install_name_tool -change libblas.dylib ${blas}/lib/libblas.dylib $out/lib/libarpack.dylib
+  '';
+
+  meta = {
+    homepage = "https://github.com/opencollab/arpack-ng";
+    description = ''
+      A collection of Fortran77 subroutines to solve large scale eigenvalue
+      problems.
+    '';
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ ttuegel dotlambda ];
+    platforms = lib.platforms.unix;
+  };
+}