As part of installing the sendmail suite of programs, some symbolic links have to be established. The program to create those symbolic links is usually called ln(1), but it can be renamed with the confLN macro described in the previous section.

The default arguments given to the program are -f -s followed by the name of the file to symbolically link. You can change those arguments by using this confLNOPTS Build macro:

define(`confLNOPTS', `-s')

Here, we removed the -f switch which forces an unconditional link. Another use for this confLNOPTS Build macro would be to devise arguments for a different or custom linking program (see the previous section).