[Bug bootstrap/106472] No rule to make target '../libbacktrace/libbacktrace.la', needed by 'libgo.la'.

[sumbera at volny dot cz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106472

--- Comment #2 from Petr Sumbera <sumbera at volny dot cz> ---
(In reply to Andrew Pinski from comment #1)
> Are you building in the source tree?

No. I'm building it outside of source tree. GCC 11 and older don't seem to have
this problem.