--- ./ssl/Config.in.orig	2011-06-25 06:12:07.000000000 +0900
+++ ./ssl/Config.in	2013-04-11 08:38:38.000000000 +0900
@@ -318,7 +318,7 @@
 config CONFIG_PERFORMANCE_TESTING
     bool "Build the bigint performance test tool"
     default n
-    depends on CONFIG_SSL_CERT_VERIFICATION
+    depends on CONFIG_SSL_CERT_VERIFICATION || CONFIG_SSL_ENABLE_CLIENT || CONFIG_SSL_FULL_MODE
     help
         Used for performance testing of bigint.