sold is a fork of mold that supports not only Linux but also macOS/iOS. Originally, sold was available under a commercial license. Now, it has been relicensed under the MIT license.
The build instruction for sold is the same as for mold except that you check
out https://github.com/bluewhalesystems/sold.git instead of
https://github.com/rui314/mold.git. For the details, please see
https://github.com/rui314/mold#how-to-build.
sold is installed under several different executable names as follows:
ld.sold: GNU ld-compatible linker for Linux and other ELF-based systems.
The instructions to use sold on Linux is the same as the mold linker.
For the details, see the mold's README.
ld64.sold: Apple's ld-compatible mode for macOS/iOS. You can use the
linker on macOS by adding --ld-path=path/to/ld64.sold to the linker flags.
ld.mold and ld64.mold: They are just aliases for ld.sold and
ld64.sold, respectively.