ndi: update src and fix lib symlink

{ lib, stdenv, requireFile, avahi, obs-studio-plugins }:

{ lib, stdenv, fetchurl, avahi, obs-studio-plugins }:

let

  versionJSON = lib.importJSON ./version.json;

  majorVersion = builtins.head (builtins.splitVersion version);

  installerName = "Install_NDI_SDK_v${majorVersion}_Linux";

  src = requireFile rec {

    name    = "${installerName}.tar.gz";

    sha256  = versionJSON.hash;

    message = ''

      In order to use NDI SDK version ${version}, you need to comply with

      NewTek's license and download the appropriate Linux tarball from:

        ${meta.homepage}

      Once you have downloaded the file, please use the following command and

      re-run the installation:

        \$ nix-prefetch-url file://\$PWD/${name}

    '';

  src = fetchurl {

    name = "${pname}-${version}.tar.gz";

    url = "https://downloads.ndi.tv/SDK/NDI_SDK_Linux/${installerName}.tar.gz";

    hash = versionJSON.hash;

  };

  buildInputs = [ avahi ];

      if [ -L "$i" ]; then continue; fi

      patchelf --set-rpath "${avahi}/lib:${stdenv.cc.libc}/lib" "$i"

    done

    rm $out/bin/libndi.so.${majorVersion}

    ln -s $out/lib/libndi.so.${version} $out/bin/libndi.so.${majorVersion}

    mv include examples $out/

    mkdir -p $out/share/doc/${pname}-${version}

    mv licenses $out/share/doc/${pname}-${version}/licenses