diff --git a/bsp/at91sam9260/rtconfig.h b/bsp/at91sam9260/rtconfig.h
index 53ca53359d..62ceba4914 100755
--- a/bsp/at91sam9260/rtconfig.h
+++ b/bsp/at91sam9260/rtconfig.h
@@ -69,7 +69,6 @@
 
 /* Using Module System */
 #define RT_USING_MODULE
-#define RT_USING_LIBDL
 
 /* SECTION: Device System */
 /* Using Device System */
@@ -147,7 +146,7 @@
 #define RT_LWIP_DNS
 
 /* Trace LwIP protocol */
-// #define RT_LWIP_DEBUG 
+// #define RT_LWIP_DEBUG
 
 /* Enable ICMP protocol */
 #define RT_LWIP_ICMP
@@ -239,11 +238,11 @@
 
 /*
  * Note on FTK:
- * 
+ *
  * FTK depends :
  * #define RT_USING_NEWLIB
  * #define DFS_USING_WORKDIR
- * 
+ *
  * And the maximal length must great than 64
  * #define RT_DFS_ELM_MAX_LFN	128
  */
diff --git a/bsp/bf533/rtconfig.h b/bsp/bf533/rtconfig.h
index 10b5202811..788fa32299 100644
--- a/bsp/bf533/rtconfig.h
+++ b/bsp/bf533/rtconfig.h
@@ -68,7 +68,6 @@
 
 /* Using Module System */
 //#define RT_USING_MODULE
-#define RT_USING_LIBDL
 
 /* SECTION: Console options */
 #define RT_USING_CONSOLE
@@ -231,11 +230,11 @@
 
 /*
  * Note on FTK:
- * 
+ *
  * FTK depends :
  * #define RT_USING_NEWLIB
  * #define DFS_USING_WORKDIR
- * 
+ *
  * And the maximal length must great than 64
  * #define RT_DFS_ELM_MAX_LFN	128
  */
diff --git a/bsp/dm365/rtconfig.h b/bsp/dm365/rtconfig.h
index 2a8cbdb22a..00bf770ae8 100644
--- a/bsp/dm365/rtconfig.h
+++ b/bsp/dm365/rtconfig.h
@@ -70,7 +70,6 @@
 
 /* Using Module System */
 #define RT_USING_MODULE
-#define RT_USING_LIBDL
 
 /* Interrupt debug */
 #define RT_USING_INTERRUPT_INFO
@@ -249,11 +248,11 @@
 
 /*
  * Note on FTK:
- * 
+ *
  * FTK depends :
  * #define RT_USING_NEWLIB
  * #define DFS_USING_WORKDIR
- * 
+ *
  * And the maximal length must great than 64
  * #define RT_DFS_ELM_MAX_LFN	128
  */
diff --git a/bsp/ls1bdev/rtconfig.h b/bsp/ls1bdev/rtconfig.h
index bb73a21f82..67bba7fc68 100644
--- a/bsp/ls1bdev/rtconfig.h
+++ b/bsp/ls1bdev/rtconfig.h
@@ -185,8 +185,6 @@
 
 // <section name="RT_USING_MODULE" description="Application module" default="true" >
 // #define RT_USING_MODULE
-// <bool name="RT_USING_LIBDL" description="Using dynamic library" default="true" />
-// #define RT_USING_LIBDL
 // </section>
 
 // <section name="RT_USING_RTGUI" description="RTGUI, a graphic user interface" default="true" >
diff --git a/bsp/x86/rtconfig.h b/bsp/x86/rtconfig.h
index 4ca8423a66..2878f811d0 100644
--- a/bsp/x86/rtconfig.h
+++ b/bsp/x86/rtconfig.h
@@ -175,7 +175,5 @@
 /* #define RTGUI_IMAGE_XPM */
 /* #define RTGUI_IMAGE_BMP */
 
-#define RT_USING_LIBDL
-#define RT_USING_MODULE
-#define MODULE_USING_386
+// #define RT_USING_MODULE
 #endif