Newlib error with pkgs.pkgsCross.armv7l-hf-multiplatform

1

I’m trying to build fsbl with pkgs.pkgsCross.armv7l-hf-multiplatform but I’m getting the following error about arm/nano.specs. Anyone with idea why is this happening or how to fix it?
Error log:

make[4]: Circular arm/nano.specs <- arm/nano.specs dependency dropped.
  GEN      arm/nano.specs
cp: missing destination file operand after 'arm/nano.specs'
Try 'cp --help' for more information.
make[4]: *** [Makefile:4504: arm/nano.specs] Error 1
make[4]: Leaving directory '/build/newlib-4.3.0.20230120/armv7l-unknown-linux-gnueabihf/libgloss'
make[3]: *** [Makefile:4071: all-recursive] Error 1
make[3]: Leaving directory '/build/newlib-4.3.0.20230120/armv7l-unknown-linux-gnueabihf/libgloss'
make[2]: *** [Makefile:1096: all] Error 2
make[2]: Leaving directory '/build/newlib-4.3.0.20230120/armv7l-unknown-linux-gnueabihf/libgloss'
make[1]: *** [Makefile:9529: all-target-libgloss] Error 2
make[1]: Leaving directory '/build/newlib-4.3.0.20230120'
make: *** [Makefile:880: all] Error 2

Here’s the snippet of the related part of the flake with the unstable branch. Also there’s a different error in nixos-23.05 branch. I guess there’s a problem in my dependencies here.

 inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;

 outputs = { self, nixpkgs  }:
    let
      pkgs = import nixpkgs { system = "x86_64-linux"; };
      pkgs-armv7l = pkgs.pkgsCross.armv7l-hf-multiplatform;
 
     ...

      fsbl = { board ? "zc706" }: pkgs-armv7l.stdenv.mkDerivation {
        name = "${board}-fsbl";
        src = pkgs-armv7l.fetchFromGitHub {
          owner = "Xilinx";
          repo = "embeddedsw";
          rev = "65c849ed46c88c67457e1fc742744f96db968ff1";
          sha256 = "1rvl06ha40dzd6s9aa4sylmksh4xb9dqaxq462lffv1fdk342pda";
        };
        patches = [ ./fsbl.patch ];
        nativeBuildInputs = with pkgs-armv7l; [
          gnumake
          binutils
          gcc
        ];
        patchPhase = ''
          patch -p1 -i ${./fsbl.patch}
          patchShebangs lib/sw_apps/zynq_fsbl/misc/copy_bsp.sh
          echo 'SEARCH_DIR("${pkgs-armv7l.newlib-nanoCross}/arm-none-eabi/lib");' >> lib/sw_apps/zynq_fsbl/src/lscript.ld
        '';
        buildPhase = ''
          cd lib/sw_apps/zynq_fsbl/src
          make BOARD=${board} "CFLAGS=-DFSBL_DEBUG_INFO -g"
        '';
        installPhase = ''
          mkdir $out
          cp fsbl.elf $out
        '';
        doCheck = false;
        dontFixup = true;
      };

   ...

 in {
      packages.armv7l-linux = {
        zc706-fsbl = fsbl { board = "zc706"; };
      };
    };