To build elilo-xcat RPM:
------------------------

 1. Login to RHEL7.6 x86 node
 2. yum install git
 3. git clone https://github.com/xcat2/xcat-dep
 4. cd xcat-dep/elilo
 5. yum install gcc
 6. yum install ./gnu-efi-3.0g-2.el6.x86_64.rpm
 7. cp elilo-xcat.spec /root/rpmbuild/SPECS
 8. cp elilo-3.14-source.tar.gz /root/rpmbuild/SOURCES
 9. cp *.patch /root/rpmbuild/SOURCES
10. rpmbuild -ba /root/rpmbuild/SPECS/elilo-xcat.spec
11. Verify contents with rpm -qlp /root/rpmbuild/RPMS/noarch/elilo-xcat-3.14-6.noarch.rpm

To build elilo-xcat DEB:
------------------------
1. Login to Ubuntu x86 node
2. git clone https://github.com/xcat2/xcat-dep
3. cd xcat-dep/elilo
4. apt install quilt
5. apt install ./gnu-efi_3.0v-5_amd64.deb
6. ./make_deb.sh
7. Verify contents with dpkg -c <deb file>