diff --git a/bsp/simulator/drivers/sd_sim.c b/bsp/simulator/drivers/sd_sim.c
index ea2aa223ca5c5427d1d159cac296008a9e2a55ba..866acecd4fa7027c76080210f8ae85e1cbca5fef 100755
--- a/bsp/simulator/drivers/sd_sim.c
+++ b/bsp/simulator/drivers/sd_sim.c
@@ -1,6 +1,8 @@
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
+#ifdef _WIN32
+#include <stdlib.h>
+#endif
 
 #include <rtthread.h>
 #include <dfs_def.h>
diff --git a/components/libc/SConscript b/components/libc/SConscript
index 4ca00c5b8686ae13de5171c819f931448d7cf004..4ed1dde123372ce0cdcfae0103ecfb854f82d9b0 100644
--- a/components/libc/SConscript
+++ b/components/libc/SConscript
@@ -14,7 +14,7 @@ if GetDepend('RT_USING_LIBC'):
     elif rtconfig.PLATFORM == 'iar':
         objs = objs + SConscript('dlib/SConscript')
 else:
-    if rtconfig.PLATFORM == 'gcc':
+    if rtconfig.PLATFORM == 'gcc' and rtconfig.ARCH != 'sim':
         objs = objs + SConscript('minilibc/SConscript')
 
 Return('objs')