On Sunday, 25 June 2023 08:18:12 PDT Frederick Virchanza Gotham via Std-
Proposals wrote:
> I think it might be permissible to have __STL_OPTIONAL_SAFETY defined
> differently in different translation units.

It's not.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
   Software Architect - Intel DCAI Cloud Engineering