Can you please tell me How and where should I add PERL_USE_UNSAFE_INC=1; while compiling Perl version 5.34?

I am aware that the current directory (.) has been removed from @INC because of some security concerns but in my scenario I will have to change a lot of scripts in the application, hence I need to have a dot(.) back in the @INC.

Any help would be appreacited!

Thank you