anchor.diff:      libxml2
       ostree
       pcre
  +    pcre2
       python3
       sysprof
       template-glib
  
positive.code: { gcc8Stdenv
  , ctags
  , appstream-glib
  , desktop-file-utils
  
negative.code:   prePatch = ''
      patchShebangs build-aux/meson/post_install.py
    '';
  
    NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/gio-unix-2.0";
  
    mesonFlags = [
      "-Dpython_libprefix=${python3.libPrefix}"
  