[Bug go/56431] -lpthread should be added to -lgo

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56431

--- Comment #5 from Ian Lance Taylor <ian at airs dot com> 2013-02-27 21:07:59 UTC ---
I see.  Interesting.  I wonder if that is a bug in gold.  I wonder what other
ELF linkers do.