Source RPMs and binary RPMs for Linux are occasionally provided. These are not official releases and have not been reviewed. They were produced by an individual APR contributor.
You can create your own RPM from the gzip version of the source tarball like this:
|Parent Directory||-||Binary Distributions|
|HEADER.html||18-Nov-2013 23:57||396||Binary Distributions|
|SRPMS/||04-May-2018 19:43||-||Binary Distributions|
|i386/||04-May-2018 19:43||-||Binary Distributions|
|ppc/||04-May-2018 19:43||-||Binary Distributions|
|x86_64/||04-May-2018 19:43||-||Binary Distributions|