struct, and instead use the already stored string in the handler struct.

  CURLINFO_SIZE_DOWNLOAD (the -w variable size_download) didn't work when
  getting data from ldap!

setup_once.h.  Inclusion of each header file is based on the definition of
NEED_MALLOC_H and NEED_MEMORY_H respectively.

  now has an improved ability to do right when the multi interface (both
  "regular" and multi_socket) is used for SCP and SFTP transfers. This should
  result in (much) less busy-loop situations and thus less CPU usage with no
  speed loss.

inclusion by the curl tool without colliding with the curl_strequal functions.

used in strequal.c so now all test cases run fine for me again.

  (http://curl.haxx.se/bug/view.cgi?id=2154627) which pointed out that libcurl
  uses strcasecmp() in multiple places where it causes failures when the
  Turkish locale is used. This is because 'i' and 'I' isn't the same letter so
  strcasecmp() on those letters are different in Turkish than in English (or
  just about all other languages). I thus introduced a totally new internal
  function in libcurl (called Curl_ascii_equal) for doing case insentive
  comparisons for english-(ascii?) style strings that thus will make "file"
  and "FILE" match even if the Turkish locale is selected.

consistency

when assigning a NULL pointer to a function pointer var.

in the connectdata structure by a single handler table ptr.

added check for MSVC6 standard PSDK and bail out since insufficient for LDAP support with current code.

default now to verify cert unless data->set.ssl.verifypeer is 0.

removed now obsolete defines since we include now ldap headers which define these.

fixed ldaps section for OpenLDAP. Still not working, but at least it compiles now, and should serve as base to get it finally working. Also seems that the ifdefs can be arranged some better because the Solaris and Netscape/iPlanet/Mozilla LDAP SDKs seem to be closer to the Novell section than the OpenLDAP one.

added basic ldaps support; for now its ifdef'd with HAVE_LDAP_SSL unless we know its fully working, and available with all LDAP SDKs.
Win32 requires to have the trusted CA in local keystore - I've not found yet a way to disable the cert check.

indented some of the code to curl-style

the configure script checks for openldap and friends and we link with those
libs just like we link all other third party libraries, and we no longer
dlopen() those libraries. Our private header file lib/ldap.h was renamed to
lib/curl_ldap.h due to this. I set a tag in CVS (curl-7_17_0-preldapfix)
just before this commit, just in case.

libldap when available in liblber.

since they're already included through "setup.h".

  non-ASCII platforms.

compiler warning fix since it was Ok and actually
avoids the targeted compiler warning.

Assigning the const value zero to a pointer to function
results in a null pointer value assignment to the function
pointer.

Assignment of any nonzero value is what should result in a
implementation compiler dependent result.

Since what we want to do here is the first case, this should
not trigger compiler warnings related with conversions from
'pointer to data' to 'pointer to function'.

Our autobuild test suite will judge.