diff --git a/wii/app_booter/string.h b/libretro-sdk/crt/include/string.h
similarity index 62%
rename from wii/app_booter/string.h
rename to libretro-sdk/crt/include/string.h
index 4df2aed86c..25fbfc4926 100644
--- a/wii/app_booter/string.h
+++ b/libretro-sdk/crt/include/string.h
@@ -1,9 +1,10 @@
-#ifndef STRING_H_
-#define STRING_H_
+#ifndef __LIBRETRO_SDK_CRT_STRING_H_
+#define __LIBRETRO_SDK_CRT_STRING_H_
 
 #include <stdio.h>
 
 void *memcpy(void *dst, const void *src, size_t len);
+
 void *memset(void *b, int c, size_t len);
 
 #endif
diff --git a/libretro-sdk/crt/string.c b/libretro-sdk/crt/string.c
index d09e900da9..4114de11d9 100644
--- a/libretro-sdk/crt/string.c
+++ b/libretro-sdk/crt/string.c
@@ -23,16 +23,12 @@ void *memset(void *dst, int val, size_t count)
    return start;
 }
 
-void *memcpy(void *dst, const void *src, size_t count)
+void *memcpy(void *dst, const void *src, size_t len)
 {
-   void *ret = dst;
+   size_t i;
 
-   while (count--)
-   {
-      *(char *)dst = *(char *)src;
-      dst = (char*)dst + 1;
-      src = (char*)src + 1;
-   }
+   for (i = 0; i < len; i++)
+      ((unsigned char *)dst)[i] = ((unsigned char *)src)[i];
 
    return dst;
 }
diff --git a/wii/app_booter/Makefile b/wii/app_booter/Makefile
index 4b4e44c035..3e1596b893 100644
--- a/wii/app_booter/Makefile
+++ b/wii/app_booter/Makefile
@@ -21,7 +21,7 @@ OBJCOPY = $(DEVKITPPC)/bin/powerpc-eabi-objcopy$(EXE_EXT)
 BIN_TARGET := app_booter.bin
 ELF_TARGET := app_booter.elf
 
-INCLUDE := -I. -I$(DEVKITPRO)/libogc/include
+INCLUDE := -I. -I$(DEVKITPRO)/libogc/include -I../../libretro-sdk/crt/include
 LIBDIRS := -L$(DEVKITPRO)/libogc/lib/wii
 
 MACHDEP := -DHW_RVL -DGEKKO -mno-eabi -mno-sdata -mcpu=750