xmake-repo VS cxx20-modules-examples

xmake [1] gives you something like this via `xrepo env shell`.

[1] https://xrepo.xmake.io/

This project should also soon be available on xrepo, right now you can copy the headers or use the package in `package.lua` to install.

Yes, although the documentation seems bare-bones, the code looks clean.

The xmake package repository files might be useful also for people interested in making their own package manager, or even installing by hand.

Here is the package information for autoconf, for instance:

https://github.com/xmake-io/xmake-repo/blob/master/packages/...

It has download links, checksums for specific versions, and the Lua syntax seems easy to parse.

The package for NanoVG however, does not indicate anywhere that you need the GLEW and GLFW libraries:

https://github.com/xmake-io/xmake-repo/blob/master/packages/...

Therefore, if the official xmake-repo repository already provides the required package, you can use it directly without specifying the package namespace.

I written a c/c++ package manager https://xrepo.xmake.io/#/

Currently, we have included the following toolchain packages in the xmake-repo repository, allowing xmake to pull and integrate remotely:

Here's the github page for xrepo: https://github.com/xmake-io/xmake-repo

build2 use the module mapper API which was available long before 2021: https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Module-Mapper... You can try the examples here https://github.com/build2/cxx20-modules-examples/ with GCC 13 or 12 to confirm, if you wish.

> given communication APIs for GCC just landed in its main branch a month ago

Can you elaborate on what are these "communication APIs"?

It you are looking for news on C++20 modules support, then sadly, there is not much progress since GCC 11. I've re-tested my modules examples[1] a few days ago with the GCC 12 snapshot, and while a few bugs have been fixed, the majority remain unfixed[2].

[1] https://github.com/build2/cxx20-modules-examples

[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103524

I used a build2 repository containing C++20 Modules hello-world projects setup in different scenario with module partitions, without partitions, libraries or not etc. They all just print hello world but the point is to check and show very basic modules usage.

If anyone is looking for a build system to try C++20 modules with GCC, there is build2: https://build2.org/blog/build2-cxx20-modules-gcc.xhtml

There is also a repository of module examples (some trying to imitate real-world usage like distributing modules as part of a library): https://github.com/build2/cxx20-modules-examples/

Here is a set of examples that exercises major modules features: https://github.com/build2/cxx20-modules-examples