I need to write an XS module for Perl. It is my understanding that h2xs is pretty much deprecated today, what is the preferred method for starting an XS module today? I looked at Module::Starter, but it only handles pure Perl modules.
No, h2xs is not deprecated. Module::Starter is certainly more convenient if you create many pure Perl modules, but there's no reason to avoid h2xs. I would recommend reading all the way through its doc before using it, though, so that you know what all you might want it to do or not do.
Personally I just use Module::Starter and add the .xs file myself. It depends on what your aim is: if you're making a one-on-one mapping to a C api then h2xs can do a lot of boilerplate for you, but if you're making a completely new interface, or when you're only doing things with perl itself (and not some external library) it doesn't add much but trouble IMHO.
Personally, whenever I start making a new module I just do it by cping and editing files from another module of mine that's similar to it, and editing as appropriate. Of course, nothing in that approach says it has to be one of mine. There's plenty of code on CPAN you can take copies of and be inspired by...
You should also look at using Inline::C
来源：https://stackoverflow.com/questions/725963/what-is-the-modern-way-of-creating-an-xs-module-from-scratch