add cyrussasl, iconv, openssl to libs for optional usage (if system does not provide)

libs/cyrussasl/plugins/passdss_init.c

@@ -0,0 +1,43 @@
+
+#include <config.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#ifndef macintosh
+#include <sys/stat.h>
+#endif
+#include <fcntl.h>
+#include <assert.h>
+
+#include <sasl.h>
+#include <saslplug.h>
+#include <saslutil.h>
+
+#include "plugin_common.h"
+
+#ifdef macintosh
+#include <sasl_passdss_plugin_decl.h>
+#endif
+
+#ifdef WIN32
+BOOL APIENTRY DllMain( HANDLE hModule, 
+                       DWORD  ul_reason_for_call, 
+                       LPVOID lpReserved
+					 )
+{
+    switch (ul_reason_for_call)
+	{
+		case DLL_PROCESS_ATTACH:
+		case DLL_THREAD_ATTACH:
+		case DLL_THREAD_DETACH:
+		case DLL_PROCESS_DETACH:
+			break;
+    }
+    return TRUE;
+}
+#endif
+
+SASL_CLIENT_PLUG_INIT( passdss )
+SASL_SERVER_PLUG_INIT( passdss )
+