Tip: Solve problems with rpmbuild between RH5 and RH6

Recently I have been creating rpms from a Centos 6.4 to be installed into a RHEL 5.8, and due to diferent versions of rpm (4.4.2 vs 4.8.0) packages created weren't compatible. After searching a lot with google, no one give a solution to my problem, so I post here to share it.

I you ever found an rpm with these dependencies (rpm -qp package.rpm -R):
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1

You won't be able to install into a RH5.

To solve the problem, is as easy as erasing a package, redhat-rpm-config where rpmbuild is installed.
This is because configurations detailed by that package to build rpms are only compatible with 4.8.0 version, since functions FileDigests and PayloadIsXz are newer.