C set executable permissions through Makefile

Question

I am using a Makefile to compile my C program and want to make the executable setuid. How can I set the permissions using the Makefile?

Answer 1

The same way you would from the command line ( chmod u+s ..... ) - just have it be the line after you've created the executable

note too that that you could, in addition, do a sudo chown root:root .....

Answer 2

If your environment has install utility you can do it like:

install: program
    install -m 4755 -o root program /usr/local/bin

.PHONY: install