[Dovecot] configure performs checks for not needed sasl headers

Hi,

I'm always surprised when I see output from configure like checking for really_not_needed.h... no The configure script is always 'checking sasl.h usability' even when the --without-ldap option was specified.

The attached patch checks the presence of sasl.h / sasl/sasl.h only when using the --with-ldap option && all required LDAP headers and libs are available.

Regards, Pascal

The trapper recommends today: 5e1f1e55.0920700@localdomain.org