libldap_r

[Howard Chu <hyc@symas.com>]

It seems the dichotomy between libldap and libldap_r is a relic from the bad 
old days of dcethreads / cmathreads when linking a threaded library into an 
otherwise non-threaded program would cause all sorts of strange and wonderful 
failures. Unless anyone knows of any current platform where this is unsafe, I 
think it's time we dropped this distinction, and just use libldap_r (until we 
get to writing a completely new C API).

libldap_r is still missing some thread-specific features though - we should 
wrap all library initialization in a pthread_once() call, and we should be 
using thread-specific data for the LDAP* errno value.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/