[Issue 21980] importC: _Thread_local allowed as storage class for return type

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21980

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla at digitalmars.com

--- Comment #1 from Walter Bright <bugzilla at digitalmars.com> ---
ImportC is C11, not C99, but the same restriction applies.

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