I recommend that 'make install' install libft8.a in /usr/local/lib rather than /usr/lib. I think this is the convention for locally built packages; /usr/lib is reserved for packages controlled by a distribution manager (e.g., 'apt' in Debian Linux). Also, on MacOS, /usr/lib is not writable by default even by a local root user.
I recommend that 'make install' install libft8.a in /usr/local/lib rather than /usr/lib. I think this is the convention for locally built packages; /usr/lib is reserved for packages controlled by a distribution manager (e.g., 'apt' in Debian Linux). Also, on MacOS, /usr/lib is not writable by default even by a local root user.