__sync_-builtins cause undefined references on some sparc targets

Eric Botcazou ebotcazou@adacore.com
Fri Mar 3 12:23:00 GMT 2017

> Is libbacktrace excluded from the build, or is it build but broken?

Neither, it's presumably falls back to __atomic.  No big deal in any case, 
since you'll presumably never use libbacktrace in practice.

Eric Botcazou

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