pam_propperpwnam.so: pam_propperpwnam.c $(CC) -shared -fPIC -o pam_propperpwnam.so pam_propperpwnam.c -lpam .PHONY: clean clean: rm *.o *.so install: pam_propperpwnam.so install -o root -g root -m 644 pam_propperpwnam.so /lib/security/