sendmail Build error

[datadan_1]

While in
/opt/Src/sendmail-8.12.10/sendmail

I tried to build a sendmail.cf from an edited sendmail.mc file:
[root@mail sendmail]# ./Build sendmail.cf
Configuration: pfx=, os=Linux, rel=2.4.19, rbase=2, rroot=2.4, arch=i686, sfx=, variant=optimized
Making in /opt/Src/sendmail-8.12.10/obj.Linux.2.4.19.i686/sendmail
make: *** No rule to make target `sendmail.cf'. Stop.

I got the above error ----> What can I do to fix it?

Thanks,

[datadan_1]

Don't I feel dumb!

I was in: /opt/Src/sendmail-8.12.10/sendmail
and should have been in:
/opt/Src/sendmail-8.12.10/cf/cf

All is well.

Thanks,