[Bug c++/106435] constructor of thread_local static member is not called

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106435

--- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> ---
Created attachment 53358
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53358&action=edit
Patch under test

This works without regression on x86_64 Darwin, now doing wider testing.
The basic approach should be applicable to open (and supported closed)
branches.