From https://perldoc.perl.org/perl5380delta
"The underlying Perl_dowantarray function implementing the long-deprecated GIMME macro has been marked as deprecated, so that use of the macro emits a compile-time warning. GIMME has been documented as deprecated in favour of GIMME_V since Perl v5.6.0, but had not previously issued a warning."
https://github.com/perl5-dbi/dbi/blob/f6ba2bfc3beacab70fde801f5913b9d336336de4/Driver.xst#L231-L246
From https://perldoc.perl.org/perl5380delta "The underlying Perl_dowantarray function implementing the long-deprecated GIMME macro has been marked as deprecated, so that use of the macro emits a compile-time warning. GIMME has been documented as deprecated in favour of GIMME_V since Perl v5.6.0, but had not previously issued a warning."
https://github.com/perl5-dbi/DBD-mysql/issues/395