For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:cabelo:intel/openSUSE_Tumbleweed/home:cabelo:intel.repo
zypper refresh
zypper install xmlrpc-c
For openSUSE Leap 15.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:cabelo:intel/openSUSE_Leap_15.2/home:cabelo:intel.repo
zypper refresh
zypper install xmlrpc-c
For openSUSE Leap 15.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:cabelo:intel/openSUSE_Leap_15.1/home:cabelo:intel.repo
zypper refresh
zypper install xmlrpc-c
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:cabelo:intel/15.4/home:cabelo:intel.repo
zypper refresh
zypper install xmlrpc-c