diff -urN ../busybox-1.23.2.orig/include/platform.h ./include/platform.h
--- ../busybox-1.23.2.orig/include/platform.h	2015-03-23 06:07:19.000000000 +0300
+++ ./include/platform.h	2015-09-24 14:59:10.703201495 +0300
@@ -384,6 +384,7 @@
 #define HAVE_MNTENT_H 1
 #define HAVE_NET_ETHERNET_H 1
 #define HAVE_SYS_STATFS_H 1
+#define HAVE_MEMPCPY 1
 
 #if defined(__UCLIBC__)
 # if UCLIBC_VERSION < KERNEL_VERSION(0, 9, 32)
@@ -481,6 +482,7 @@
 # undef HAVE_STRVERSCMP
 # undef HAVE_UNLOCKED_LINE_OPS
 # undef HAVE_NET_ETHERNET_H
+# undef HAVE_MEMPCPY
 #endif
 
 /*
@@ -544,4 +546,9 @@
 extern ssize_t getline(char **lineptr, size_t *n, FILE *stream) FAST_FUNC;
 #endif
 
+#ifndef HAVE_MEMPCPY
+# include <sys/types.h> /* size_t */
+extern void *mempcpy(void *dest, const void *src, size_t n);
+#endif
+
 #endif
diff -urN ../busybox-1.23.2.orig/libbb/platform.c ./libbb/platform.c
--- ../busybox-1.23.2.orig/libbb/platform.c	2015-03-23 06:06:55.000000000 +0300
+++ ./libbb/platform.c	2015-09-24 14:59:15.423263724 +0300
@@ -194,3 +194,12 @@
 	return len;
 }
 #endif
+
+#ifndef HAVE_MEMPCPY
+void *mempcpy(void *dest, const void *src, size_t n)
+{
+  memcpy(dest, src, n);
+  dest += n;
+  return dest;
+}
+#endif
\ В конце файла нет новой строки