[Bug c/28141] thread-local ptr initialized to address of thread-local misclassified as non-constant initializer

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=28141

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This also requires support in glibc.  I don't think glibc folks want this thing
as it means you have to process runtime relocs when a thread is created, not a
good thing.