[Bug go/68562] morestack misaligns stack on x86_64

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68562

--- Comment #6 from Ian Lance Taylor <ian at airs dot com> ---
Your build is passing the option "-B/usr/local/x86_64-pc-linux-gnu/lib/"; why?

You have an old version of the Go libraries installed under that directory. 
Either remove the -B option or remove the old version of the Go libraries.