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zig
General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
"So, a clang wrapper?" is a common thought. Here's how Zig differs from clang out of the box:
* Links MachO binaries for Apple Silicon via the custom zld linker it ships. LLVM cannot do this currently.
* Provides (deduplicated) libc headers for pretty much every platform, including macOS and glibc/musl. https://github.com/ziglang/zig/tree/master/lib/libc/include
* Provides a libc implementation (libSystem for macOS, musl and glibc, mingw for Windows, and WASI)
* Deals with lots of the deep depths of hell, like enabling you to target any version of glibc out of the box by building symbol mappings: https://github.com/ziglang/glibc-abi-tool/
And that doesn't mention the most important part, IMO, which is that it lets you cross compile _out of the box_. No fiddling with sysroots, system packages, etc. to get a cross compiling toolchain working.
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glibc-abi-tool
A repository that collects glibc .abilist files for every version and a tool to combine them into one dataset.
"So, a clang wrapper?" is a common thought. Here's how Zig differs from clang out of the box:
* Links MachO binaries for Apple Silicon via the custom zld linker it ships. LLVM cannot do this currently.
* Provides (deduplicated) libc headers for pretty much every platform, including macOS and glibc/musl. https://github.com/ziglang/zig/tree/master/lib/libc/include
* Provides a libc implementation (libSystem for macOS, musl and glibc, mingw for Windows, and WASI)
* Deals with lots of the deep depths of hell, like enabling you to target any version of glibc out of the box by building symbol mappings: https://github.com/ziglang/glibc-abi-tool/
And that doesn't mention the most important part, IMO, which is that it lets you cross compile _out of the box_. No fiddling with sysroots, system packages, etc. to get a cross compiling toolchain working.
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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I recently learned that Clang supports this kind of cross-compiling out of the box. https://mcilloni.ovh/2021/02/09/cxx-cross-clang/
The main difference is that Clang does not ship with headers/libraries for different platforms, as Zig appears to do. You need to give Clang a "sysroot" -- a path that has the headers/libraries for the platform you want to compile for.
If you create a bunch of sysroots for various architectures, you can do some pretty "easy" cross-compiling with just a single compiler binary. Docker can be a nice way of packaging up these sysroots (especially combined with Docker images like manylinux: https://github.com/pypa/manylinux). Gone are the days when you had to build a separate GCC cross-compiler for each platform you want to target.
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llvm-project
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
VS community edition is free (but not an option for commercial work).
Another Clang-specific way to handle the case insensitivity is by making use of a virtual file system (VFS) overlay. https://github.com/llvm/llvm-project/blob/4976d1fe58f89169ef... demonstrates how that works. (There's no linker equivalent that I'm aware of, so you do have to use the symlinks or something like ciopfs for that; https://github.com/llvm/llvm-project/blob/4976d1fe58f89169ef... is an example of symlink generation.)
