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

[matoro_gcc_bugzilla at matoro dot tk via Gcc-bugs]

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

--- Comment #22 from matoro <matoro_gcc_bugzilla at matoro dot tk> ---
This is still a problem on the gcc-12 branch, at least as of 20221008. 
Attaching a complete log from a -j1 build.