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Description of problem:
Postfix is not built with LDAP support by default.  I think it should be -
especially if Sendmail is build with LDAP support (it is).  If the user doesn't
want to use it then it is no more/less in the way then the SASL dependency.  In
fact, the current SRPM in 7.3.93 won't even build with LDAP enabled even though
there is a build toggle for it.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Obtain/Install Limbo 7.3.93
2. rpm -q --requires postfix | grep libldap
3. rpm -q --requires sendmail | grep libldap
3. See that sendmail is built with LDAP but Postfix isn't.  Be confused.
4. Try to build postfix with LDAP - see error.	

Actual Results:  
# rpm -q --requires postfix | grep libldap
# rpm -q --requires sendmail | grep libldap
libldap.so.2  

# rpmbuild -bb postfix.spec 
(watch lots of build stuff)
./../include -DLINUX2 -o error error.o ../../lib/libmaster.a
../../lib/libglobal.a ../../lib/libutil.a -L/usr/lib -lldap -llber -lpcre -lsasl
-lssl -lcrypto -ldb -lnsl -lresolv
../../lib/libutil.a(dict_ldap.o): In function `dict_ldap_get_values':
dict_ldap.o(.text+0x5d1): undefined reference to `ldap_url_search_st'
collect2: ld returned 1 exit status
make: *** [error] Error 1
make: *** [update] Error 1
error: Bad exit status from /var/tmp/rpm-tmp.95491 (%build)

Expected Results:  
# rpm -q --requires postfix | grep libldap
libldap.so.2
# rpm -q --requires sendmail | grep libldap
libldap.so.2 

and a package that will at least let you rebuild it with LDAP support.

Additional info:

It is very nice to have LDAP support for all the various options in Postfix and
if a site depends on LDAP support in Sendmail then the lack of it in Postfix
will keep them from considering it as an alternative.