cross-epiphany-gcc7-bootstrap from Kernel:tools:SLE-15-SP2 project
Select Your Operating System
Add repository and install manually
For SLE 15 SP2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Kernel:tools:SLE-15-SP2/SLE_15_SP2/Kernel:tools:SLE-15-SP2.repo zypper refresh zypper install cross-epiphany-gcc7-bootstrap