cross-arm-none-gcc7-bootstrap from openSUSE:Leap:15.0 project
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Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Leap:15.0/standard/openSUSE:Leap:15.0.repo zypper refresh zypper install cross-arm-none-gcc7-bootstrap