We are seeing the same issue. This is what we're using:
nagios version: 2.9
nagios plugin: 1.4.8
I think I followed the above logic, so I did this:
cp sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
It copied the file over.
I then did this:
and it came back with the error:
*** No rule to make target `install-webconf
Did I copy the file to the wrong place? Any help offered would be greatly appreciated. Thanks!