virtualbox-guest-tools from home:simotek:cmake4macro project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:simotek:cmake4macro/openSUSE_Tumbleweed/home:simotek:cmake4macro.repo
zypper refresh
zypper install virtualbox-guest-tools