rubygem-rake-compiler from OBS:Server:2.8:Staging project

For openSUSE 42.3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.8:Staging/openSUSE_42.3/OBS:Server:2.8:Staging.repo
zypper refresh
zypper install rubygem-rake-compiler

For openSUSE 42.2 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.8:Staging/openSUSE_42.2/OBS:Server:2.8:Staging.repo
zypper refresh
zypper install rubygem-rake-compiler

For openSUSE 42.1 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.8:Staging/openSUSE_42.1/OBS:Server:2.8:Staging.repo
zypper refresh
zypper install rubygem-rake-compiler

For SLE 12 SP3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.8:Staging/SLE_12_SP3/OBS:Server:2.8:Staging.repo
zypper refresh
zypper install rubygem-rake-compiler

For SLE 12 SP2 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.8:Staging/SLE_12_SP2/OBS:Server:2.8:Staging.repo
zypper refresh
zypper install rubygem-rake-compiler