rpmbuild on different linux?
 

If the binary rpm aren't available and I have source rpm files. I'm wondering is it safe to rpmbuild from different linux version when installing the binary built on new servers?

example:
#1 rpmbuild source rpm (from fedora 3 or enterprise) on redhat 9
(note I'm not installing rpm on redhat 9, just rebuilt to binary)

#2 then install binary rpm on fedora 3 or enterprise by downloading the binary rpm from redhat 9 server(#1)

well yes it's ok, but the dependencies are going to be just as strict as a binary rpm, so you'll have to deal with those first.

moreover, if it's NOT ok, it won't compile in the first place, so you'll know about it before even trying it out.