EAP-TTLS / LDAP

Hello, After reading the configuration file radiusd.conf, it explicitly says that one can't use LDAP as the authentication backend when you use EAP (in my case, i'm interested in EAP-TTLS). Nonetheless, I can read elsewhere on the web that some people seem to use both EAP and LDAP, so I wonder who is right ? I would use LDAP for storing all my users/password and EAP to protect my users credentials over insecure Wifi. Any advices ? Cheers, Joris