I'm trying to build an RPM package, from source.

I'm following the suggestions of several tutorials online, but I keep getting errors when checking the build.

I'm still generally confused about the install section.  If I'm building it from source, how should I know what files will be installed, and in what directories?

Is the "files" section required or just a courtesy so "rpm -ql" would work?

Im trying to build GNU Nettle 3.4.1 into an RPM, as the CentOS repo only has v2.7.1 built.

I really appreciate the help!