$ rpmquery -pR inn-2.4.1-alt3.i586.rpm |fgrep libdb libdb-4.2.so libdb.so.3 libdb.so.3(GLIBC_2.0) It uses both libdb2 and libdb4 :(
Looks like fixed: $ rpmquery -pR inn-2.4.1-alt4.1.i586.rpm |fgrep db libdb-4.2.so