I use 5.6.x so don't actually have bigint. This is called obfuscation after all :-) The reason it does not work is that => is just a synonym for , in Perl so it reads use, bigint Or it should. Actually that , syntax parses as an error, whereas => syntax is OK GOK?

C:\>type test.pl
use, strict

C:\>perl -MO=Deparse test.pl
syntax error at test.pl line 1, near "use,"
test.pl had compilation errors.

C:\>type test.pl
use => strict

C:\>perl -MO=Deparse test.pl
'???', '???';
test.pl syntax OK

C:\>
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