Using `https://src.fedoraproject.org/rpms/innoextract/blob/master/f/innoextract.spec` to build innoextract version 1.8 for fedora 30. Gog installers need innoextract 1.8 while fedora 30 has version 1.7.
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/panagiotiss/innoextract/