for _drop_dep in gobject-introspection vala; do
  if makedepends_i686+=(
    $(
      printf '%s\n' "${makedepends[@]}" \
      | grep -xF ${_drop_dep}
    )
  ); then
    makedepends_pentium4=("${makedepends_i686[@]}")
    makedepends=(
      $(
        printf '%s\n' "${makedepends[@]}" \
        | grep -vxF ${_drop_dep}
      )
    )
  fi
done
eval "$(
  declare -f build \
  | sed '
    /arch-meson/ {
      h
      s/^/[ "${CARCH}" = i486 ] || /
      p
      g
      s/^\(.*\);$/[ "${CARCH}" != i486 ] || \1 -D vapi=disabled -D introspection=disabled;/
    }
  '
)"