The config.guess file contained in the source code is too old that it failed to recognized RISC-V platform. This can be fixed by rerun the autoreconf.
Normally, I run autoupdate and published a new version. So I closed this ticket, but feel free to reopen it if there are still problems.
Anonymous
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Normally, I run autoupdate and published a new version. So I closed this ticket, but feel free to reopen it if there are still problems.