libgtkgl-2_0-1 from home:garloff project

For CentOS7 run the following as root:

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:garloff/CentOS7/home:garloff.repo
yum install libgtkgl-2_0-1

For openSUSE Leap 42.3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/openSUSE_Leap_42.3/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1

For openSUSE Leap 15.1 ARM run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/openSUSE_Leap_15.1_ARM/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1

For 15.5 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/15.5/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1

For SLE 12 SP5 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/SLE_12_SP5/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1

For SLE 12 SP4 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/SLE_12_SP4/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1

For SLE 11 SP4 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:garloff/SLE_11_SP4/home:garloff.repo
zypper refresh
zypper install libgtkgl-2_0-1