[Bug c/65083] Can not indirectly call some C11 atomic library functions

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65083

--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
It's basically a matter of whether you consider adding a new symbol 
version to be appropriate in a backport.