User config `PREFIX` rather than system bin

[CharlesChiuGit]

https://github.com/NikitaIvanovV/ctpv/blob/6d5c14d279a71d676270151d218efef067733921/Makefile#L1

Is there a reason fixing prefix to /usr/bin, or it's possible to be a pass-in option? I would really like it to be a local only program, cause people don't have sudo privilege all the time.

Thanks for the great work!

[NikitaIvanovV]

Yep, it's not necessary to install it, you can just type make and out the put the compiled binary wherever you want.

[CharlesChiuGit]

ys, that's what I had done. 😂 Sorry, not quite familiar with makefiles.