libglibmm-2_4-1 from home:gcomes.obs:Steam_Leap_16.0 project
Select Your Operating System
Add repository and install manually
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:gcomes.obs:Steam_Leap_16.0/16.0/home:gcomes.obs:Steam_Leap_16.0.repo zypper refresh zypper install libglibmm-2_4-1