diff --git a/CHANGES b/CHANGES
index 02501a350c1a20..4b99f099c8145a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,6 +6,14 @@
 
                                   Changelog
 
+Yang Tse (4 June 2010)
+- Enabled OpenLDAP support for cygwin builds. This support was disabled back
+  in 2008 due to incompatibilities between OpenSSL and OpenLDAP headers.
+  cygwin's OpenSSL 0.9.8l and OpenLDAP 2.3.43 versions on cygwin 1.5.25
+  allow building an OpenLDAP enabled libcurl supporting back to Windows 95.
+
+  Removed the non-functional CURL_LDAP_HYBRID code and references.
+
 Daniel Stenberg (2 June 2010)
 - Jason McDonald posted bug report #3006786 when he found that the SFTP code
   didn't timeout properly in several places in the code even if a timeout was
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56c42785fcdbcd..a9bde719a403aa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,16 +120,11 @@ if(WIN32)
   if( NOT HAVE_WLDAP32)
     set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
     message(STATUS "wldap32 not found CURL_DISABLE_LDAP set ON")
-    option(CURL_LDAP_WIN "Use W$ LDAP implementation" OFF)
+    option(CURL_LDAP_WIN "Use Windows LDAP implementation" OFF)
   else()
-    option(CURL_LDAP_WIN "Use W$ LDAP implementation" ON)
+    option(CURL_LDAP_WIN "Use Windows LDAP implementation" ON)
   endif()
   mark_as_advanced(CURL_LDAP_WIN)
-  set(CURL_LDAP_HYBRID OFF)
-else()
-  option(CURL_LDAP_HYBRID "W$ LDAP with non-W$ compiler" OFF)
-  mark_as_advanced(CURL_LDAP_HYBRID)
-  set(CURL_LDAP_WIN OFF)
 endif()
 
 if(HTTP_ONLY)
diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 49beadeece739f..e9f5852e612c31 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -16,6 +16,7 @@ This release includes the following changes:
  o added support for FTP wildcard matching and downloads
  o added support for RTMP
  o introducing new LDAP code for new enough OpenLDAP
+ o OpenLDAP support enabled for cygwin builds
 
 This release includes the following bugfixes:
 
diff --git a/configure.ac b/configure.ac
index 9af5316cbe1ea0..af30b8a69fa69d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -371,28 +371,10 @@ AC_HELP_STRING([--disable-ldap],[Disable LDAP support]),
        AC_SUBST(CURL_DISABLE_LDAP, [1])
        ;;
   *)
-       case $host in
-         *-*-cygwin*)
-           # Force no ldap. config/build process is broken for cygwin
-           AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
-           AC_SUBST(CURL_DISABLE_LDAP, [1])
-           AC_MSG_RESULT(no)
-           ;;
-         *)
-           AC_MSG_RESULT(yes)
-       esac
+       AC_MSG_RESULT(yes)
        ;;
   esac ],[
-       case $host in
-         *-*-cygwin*)
-           # Force no ldap. config/build process is broken for cygwin
-           AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
-           AC_SUBST(CURL_DISABLE_LDAP, [1])
-           AC_MSG_RESULT(no)
-           ;;
-         *)
-           AC_MSG_RESULT(yes)
-       esac ]
+       AC_MSG_RESULT(yes) ]
 )
 AC_MSG_CHECKING([whether to support ldaps])
 AC_ARG_ENABLE(ldaps,
@@ -810,13 +792,11 @@ if test x$CURL_DISABLE_LDAP != x1 ; then
   CURL_CHECK_HEADER_LDAP_SSL
 
   if test -z "$LDAPLIBNAME" ; then
-    case $host in
-      *-*-cygwin* | *-*-mingw* | *-*-pw32*)
-        dnl Windows uses a single and unique OpenLDAP DLL name
-        LDAPLIBNAME="wldap32"
-        LBERLIBNAME="no"
-        ;;
-    esac
+    if test "$ac_cv_native_windows" = "yes"; then
+      dnl Windows uses a single and unique LDAP library name
+      LDAPLIBNAME="wldap32"
+      LBERLIBNAME="no"
+    fi
   fi
 
   if test "$LDAPLIBNAME" ; then
@@ -862,12 +842,7 @@ if test x$CURL_DISABLE_LDAP != x1 ; then
 
   if test "$LDAPLIBNAME" = "wldap32"; then
     curl_ldap_msg="enabled (winldap)"
-    AC_DEFINE(CURL_LDAP_WIN, 1, [Use W$ LDAP implementation])
-    case $host in
-      *-*-cygwin* | *-*-pw32*)
-        AC_DEFINE(CURL_LDAP_HYBRID, 1, [W$ LDAP with non-W$ compiler])
-        ;;
-    esac
+    AC_DEFINE(CURL_LDAP_WIN, 1, [Use Windows LDAP implementation])
   else
     curl_ldap_msg="enabled (OpenLDAP)"
     if test "x$ac_cv_func_ldap_init_fd" = "xyes"; then
diff --git a/lib/config-symbian.h b/lib/config-symbian.h
index f5589fe784ab45..9f8b74a5751082 100644
--- a/lib/config-symbian.h
+++ b/lib/config-symbian.h
@@ -48,10 +48,7 @@
 /* to enable hidden symbols */
 /*#define CURL_HIDDEN_SYMBOLS 1*/
 
-/* W$ LDAP with non-W$ compiler */
-/* #undef CURL_LDAP_HYBRID */
-
-/* Use W$ LDAP implementation */
+/* Use Windows LDAP implementation */
 /* #undef CURL_LDAP_WIN */
 
 /* when not building a shared library */
diff --git a/lib/config-vxworks.h b/lib/config-vxworks.h
index 3ad36d233df631..f7797fd0ed7e8c 100644
--- a/lib/config-vxworks.h
+++ b/lib/config-vxworks.h
@@ -59,10 +59,7 @@
 /* to enable hidden symbols */
 /* #undef CURL_HIDDEN_SYMBOLS */
 
-/* W$ LDAP with non-W$ compiler */
-/* #undef CURL_LDAP_HYBRID */
-
-/* Use W$ LDAP implementation */
+/* Use Windows LDAP implementation */
 /* #undef CURL_LDAP_WIN */
 
 /* when not building a shared library */
diff --git a/lib/config-win32.h b/lib/config-win32.h
index 43997faf1a4a44..0c254707aa06ef 100644
--- a/lib/config-win32.h
+++ b/lib/config-win32.h
@@ -535,16 +535,13 @@
 /* ---------------------------------------------------------------- */
 
 #if defined(CURL_HAS_NOVELL_LDAPSDK) || defined(CURL_HAS_MOZILLA_LDAPSDK)
-#undef CURL_LDAP_HYBRID
 #undef CURL_LDAP_WIN
 #define HAVE_LDAP_SSL_H 1
 #define HAVE_LDAP_URL_PARSE 1
 #elif defined(CURL_HAS_OPENLDAP_LDAPSDK)
-#undef CURL_LDAP_HYBRID
 #undef CURL_LDAP_WIN
 #define HAVE_LDAP_URL_PARSE 1
 #else
-#undef CURL_LDAP_HYBRID
 #undef HAVE_LDAP_URL_PARSE
 #define CURL_LDAP_WIN 1
 #endif
diff --git a/lib/config-win32ce.h b/lib/config-win32ce.h
index 058fcc0f0b7b39..1f417825ed140f 100644
--- a/lib/config-win32ce.h
+++ b/lib/config-win32ce.h
@@ -379,7 +379,6 @@
 /* ---------------------------------------------------------------- */
 
 #define CURL_LDAP_WIN 1
-#undef CURL_LDAP_HYBRID
 #undef HAVE_LDAP_URL_PARSE
 
 /* ---------------------------------------------------------------- */
diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index 14d2719d331ff6..deebe71dc38f51 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -58,10 +58,7 @@
 /* to enable hidden symbols */
 #cmakedefine CURL_HIDDEN_SYMBOLS ${CURL_HIDDEN_SYMBOLS}
 
-/* W$ LDAP with non-W$ compiler */
-#cmakedefine CURL_LDAP_HYBRID ${CURL_LDAP_HYBRID}
-
-/* Use W$ LDAP implementation */
+/* Use Windows LDAP implementation */
 #cmakedefine CURL_LDAP_WIN ${CURL_LDAP_WIN}
 
 /* when not building a shared library */
diff --git a/lib/ldap.c b/lib/ldap.c
index e837dbfddaa834..d6556c9054cee1 100644
--- a/lib/ldap.c
+++ b/lib/ldap.c
@@ -43,15 +43,7 @@
 #include <ctype.h>
 #include <errno.h>
 
-#ifdef CURL_LDAP_HYBRID         /* If W$ definitions are needed. */
-# include <windows.h>
-  /* Remember we are NOT in a W$ compiler! */
-# undef WIN32
-# undef _WIN32
-# undef __WIN32__
-#endif
-
-#ifdef CURL_LDAP_WIN            /* Use W$ LDAP implementation. */
+#ifdef CURL_LDAP_WIN            /* Use Windows LDAP implementation. */
 # include <winldap.h>
 # ifndef LDAP_VENDOR_NAME
 #  error Your Platform SDK is NOT sufficient for LDAP support! Update your Platform SDK, or disable LDAP support!
@@ -59,14 +51,14 @@
 #  include <winber.h>
 # endif
 #else
-#define LDAP_DEPRECATED 1       /* Be sure ldap_init() is defined. */
-#ifdef HAVE_LBER_H
-# include <lber.h>
-#endif
+# define LDAP_DEPRECATED 1      /* Be sure ldap_init() is defined. */
+# ifdef HAVE_LBER_H
+#  include <lber.h>
+# endif
 # include <ldap.h>
-#if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
-# include <ldap_ssl.h>
-#endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
+# if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
+#  include <ldap_ssl.h>
+# endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
 #endif
 
 #ifdef HAVE_UNISTD_H