Build script fails on macOS 26.5.2 (M1 Pro) with make error

[Bittorn]

When attempting to run ./build.sh, the script gives this output:

user@System ~ % /Users/user/Documents/temp/libdragon/libdragon/build.sh
make: *** No rule to make target `install-mk'.  Stop.
make: *** No rule to make target `install-mk'.  Stop.

Been trying to install for the better part of a day now, stopped at the final hurdle. Trying to get the system to work for use with Pyrite64.
My N64_INST is set to /opt/libdragon, which is correctly picked up and parsed by Pyrite64.

[Bittorn]

Thinking this might be an issue with ./build-toolchain.sh? Attached the log in case that's true.
Also my user isn't called 'user', just replaced it since it's my real name.

build-toolchain.log