[Bug c++/92951] extern variable declaration doesn't behave properly for me

[fportera2 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92951

--- Comment #4 from Filippo Portera <fportera2 at gmail dot com> ---
Created attachment 47503
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47503&action=edit
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where training is defined