Hi,
your problem is that the paths are wrong. In particular, -l/fuzzylite-6.0/fuzzylite is pointing to root /, and same as -L/fuzzylite-6.0/fuzzylite/release/bin. They should be -l/home/yourname/fuzzylite-6.0/fuzzylite -L/home/yourname/fuzzylite-6.0/fuzzylite/release/bin`.
In any case, make sure that both paths are accessible from where you run. Just executing the path will tell you whether it is a directory or not in terminal:
juan@macbook:~$ /fuzzylite-6.0/fuzzylite
-bash: /fuzzylite-6.0/fuzzylite: No such file or directory
juan@macbook:~$ /Users/juan/dev/fuzzylite-6.0
-bash: /Users/juan/dev/fuzzylite-6.0/: is a directory