Tweak Mac build system to make nsLDAPAutoCompleteSession.cpp and friends compile when "options ldap" is on (bug 70933). r=peterv@netscape.com, sr=smfr@netscape.com.

mailnews/addrbook/src/nsLDAPAutoCompleteSession.cpp

@@ -21,6 +21,16 @@
  *
  */
 
+
+// Work around lack of conditional build logic in codewarrior's
+// build system.  The MOZ_LDAP_XPCOM preprocessor symbol is only 
+// defined on Mac because noone else needs this weirdness; thus 
+// the XP_MAC check first.  This conditional encloses the entire
+// file, so that in the case where the ldap option is turned off
+// in the mac build, a dummy (empty) object will be generated.
+//
+#if !defined(XP_MAC) || defined(MOZ_LDAP_XPCOM)
+
 #include "nsLDAPAutoCompleteSession.h"
 #include "nsIComponentManager.h"
 #include "nsIConsoleService.h"
@@ -1017,3 +1027,5 @@ nsLDAPAutoCompleteSession::SetServerURL(nsILDAPURL * aServerURL)
 
     return NS_OK;
 }
+
+#endif