spf_template gnu &&
spf_template_gnu_src_ext gz &&
case ${spf_version?} in
  1.19.2)
    spf_template_gnu_do_before_configure() { mkdir "${spf_path_prefix?}"; };;
  *) :;;
esac &&
spf_tested_version 1.21 &&
spf_tested_version 1.20.1 &&
spf_tested_version 1.19.2