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/petsc/default.nix

@@ -0,0 +1,84 @@
+{ lib
+, stdenv
+, fetchurl
+, darwin
+, gfortran
+, python3
+, blas
+, lapack
+, mpi                   # generic mpi dependency
+, openssh               # required for openmpi tests
+, petsc-withp4est ? true
+, p4est
+, zlib                  # propagated by p4est but required by petsc
+}:
+
+# This version of PETSc does not support a non-MPI p4est build
+assert petsc-withp4est -> p4est.mpiSupport;
+
+stdenv.mkDerivation rec {
+  pname = "petsc";
+  version = "3.17.0";
+
+  src = fetchurl {
+    url = "http://ftp.mcs.anl.gov/pub/petsc/release-snapshots/petsc-${version}.tar.gz";
+    sha256 = "sha256-ltWspoThzhQliRpiDSeHc8JWEcsUQWWpOxdTEjjqr4o=";
+  };
+
+  mpiSupport = !withp4est || p4est.mpiSupport;
+  withp4est = petsc-withp4est;
+
+  strictDeps = true;
+  nativeBuildInputs = [ python3 gfortran ]
+    ++ lib.optional mpiSupport mpi
+    ++ lib.optional (mpiSupport && mpi.pname == "openmpi") openssh
+  ;
+  buildInputs = [ blas lapack ]
+    ++ lib.optional withp4est p4est
+  ;
+
+  prePatch = lib.optionalString stdenv.isDarwin ''
+    substituteInPlace config/install.py \
+      --replace /usr/bin/install_name_tool ${darwin.cctools}/bin/install_name_tool
+  '';
+
+  preConfigure = ''
+    export FC="${gfortran}/bin/gfortran" F77="${gfortran}/bin/gfortran"
+    patchShebangs ./lib/petsc/bin
+    configureFlagsArray=(
+      $configureFlagsArray
+      ${if !mpiSupport then ''
+        "--with-mpi=0"
+      '' else ''
+        "--CC=mpicc"
+        "--with-cxx=mpicxx"
+        "--with-fc=mpif90"
+        "--with-mpi=1"
+      ''}
+      ${if withp4est then ''
+        "--with-p4est=1"
+        "--with-zlib-include=${zlib.dev}/include"
+        "--with-zlib-lib=-L${zlib}/lib -lz"
+      '' else ""}
+      "--with-blas=1"
+      "--with-lapack=1"
+    )
+  '';
+
+  configureScript = "python ./configure";
+
+  # disable stackprotector on aarch64-darwin for now
+  # https://github.com/NixOS/nixpkgs/issues/158730
+  # see https://github.com/NixOS/nixpkgs/issues/127608 for a similar issue
+  hardeningDisable = lib.optionals (stdenv.isAarch64 && stdenv.isDarwin) [ "stackprotector" ];
+
+  enableParallelBuilding = true;
+  doCheck = stdenv.hostPlatform == stdenv.buildPlatform;
+
+  meta = with lib; {
+    description = "Portable Extensible Toolkit for Scientific computation";
+    homepage = "https://www.mcs.anl.gov/petsc/index.html";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ cburstedde ];
+  };
+}