1. Edit the makefile.include header
2. make
3. edit your httpd.conf, eg:
   <Directory "/var/www/secure">
      Options Indexes FollowSymLinks
      AuthType Kerberos
      KrbAuthRealms ICS.MUNI.CZ
      Krb5Keytab /etc/httpd/keytab
      KrbMethodNegotiate On
      KrbMethodK5Pass On
      require valid-user
   </Directory>
4. start httpd