--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -44,6 +44,9 @@ void error(char *x)
 #define STATIC static
 
 #ifdef CONFIG_KERNEL_GZIP
+#ifdef memcpy
+#undef memcpy
+#endif
 void *memcpy(void *dest, const void *src, size_t n)
 {
 	int i;