This change updates the Makefile.PL version guard to evaluate ExtUtils::MakeMaker::VERSION explicitly before comparing it. That avoids brittle behavior when the version is stored in a form that doesn't compare cleanly as-is, which can affect whether LICENSE metadata gets written during packaging. It's a small compatibility fix, but it helps installs behave more consistently in older or unusual Perl setups.

Adjusted the ExtUtils::MakeMaker version check in Makefile.PL so LICENSE metadata is added reliably across Perl environments. - zhengqunkoo/git-cal