Login is an abject failure since mid February

[Pufferfish]

I tried to compile it, but it fails every time. Are there files missing from the download here? It seems to be looking for a file named "main.o"

This is the error I get:

cc -c -o build/main.o src/main.c -O2 -Wall -Wno-strict-aliasing
process_begin: CreateProcess(NUL, cc -c -o build/main.o src/main.c -O2 -Wall -Wno-strict-aliasing, ...) failed.
make (e=2): The system cannot find the file specified.
make: *** [build/main.o] Error 2

Any idea what's going wrong?