EXTUTILS::MM_CYGWIN(3perl)

💖 ExtUtils::MM_Cygwin(3perl) 💖

okay bestie, so this is a page from the Perl Programmers Reference Guide, and it's literally all about ExtUtils::MM_Cygwin — the little module that goes "bestie, Cygwin is Not Like Other Unixes" and quietly patches the vibe. 🦋

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✨ NAME ✨

ExtUtils::MM_Cygwin — methods to override UN*X behaviour in ExtUtils::MakeMaker

yes you read that right, it's giving "UN*X but make it Cygwin" 💅

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🌸 SYNOPSIS 🌸

use ExtUtils::MM_Cygwin; # Done internally by ExtUtils::MakeMaker if needed

and that comment is not a joke, the load-bearing tea here is that you basically never do this yourself. ExtUtils::MakeMaker pulls it in on its own when it needs it. it's giving "I don't need to be invited, I just show up when the party needs me" 👑

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🎀 DESCRIPTION 🎀

for the actual docs on the methods that live here, go read ExtUtils::MM_Unix. this page is just the receipts for the stuff that Cygwin needed to override. ✨

so here's the rundown, method by method, no cap:

🧚 os_flavor

We're Unix and Cygwin. that's it. that's the whole vibe check. both. at once. iconic. 🌈

🍓 cflags

if it's configured for dynamic loading, this triggers #define EXT in EXTERN.h. dramatic? maybe. necessary? fr fr. 🔥

💜 replace_manpage_separator

replaces the string '::' with '.' in MAN*POD man page names. so basically it's the friend who fixes your group chat name formatting, except for manpages. 🎀

🫶 init_linker

points to libperl.a. simple, clean, slay. 💅

🌸 maybe_command

this one's a whole personality. it figures out whether a file is native to Cygwin by checking whether it lives inside the Cygwin installation, using Windows paths. if it does, it hands things off to ExtUtils::MM_Unix to decide if it might be a command. if it doesn't, it rolls with the tests from ExtUtils::MM_Win32. two worlds, one method, main character energy. 👑

🦋 dynamic_lib

uses the default to produce the *.dll's, obviously. but — and this is the tea — for new archdir dll's it uses the same rebase address if the old one exists. consistency bestie, we love to see it. ✨

⭐ install

rebase dll's with the global rebase database after installation. that's the whole job. show up, rebase, leave. periodt. 💖

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💡 friendly reminder: this module is all about overriding UN*X behaviour specifically for Cygwin. don't go expecting it to do anything on your regular Linux box, okay? iykyk.

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okay that's the whole page babes! this was ExtUti..._Cygwin(3perl) for perl v5.44.0, dated 2026-10-17, brought to you by the Perl Programmers Reference Guide. go forth and rebase responsibly. 💅✨🦋🍓