Just find out where the start-script of apache is isntalled, look in your makefile where the bindir is ..
The start-script is called apachectl, on slackware it resides in /usr/sbin/apachectl on redhat9 it is in /sbin/apachectl. Just type in prompt:
apachectl start , then u have it as service, to stop it type: apachectl stop
That all ..