gcc7 from home:yukoff:openSUSE:Leap:42.1:Backports project
Select Your Operating System
Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:yukoff:openSUSE:Leap:42.1:Backports/standard/home:yukoff:openSUSE:Leap:42.1:Backports.repo zypper refresh zypper install gcc7
For ports run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:yukoff:openSUSE:Leap:42.1:Backports/ports/home:yukoff:openSUSE:Leap:42.1:Backports.repo zypper refresh zypper install gcc7