test-lock and weak symbol bugs

[Bruno Haible]

Has anyone reproduced a test-lock crash due to broken weak symbol support
in binutils or gcc in the last two years?

Just to make sure there's no TODO item left for [1], [2], [3].

Bruno

[1] https://lists.gnu.org/archive/html/bug-gnulib/2013-10/msg00017.html
[2] https://lists.gnu.org/archive/html/bug-gnulib/2014-07/msg00061.html
[3] https://lists.gnu.org/archive/html/bug-gnulib/2014-09/msg00023.html