diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 45cb788..61b6451 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -2,7 +2,9 @@
 
 romstage-y += memset.c
 romstage-y += memchr.c
+ifneq ($(CONFIG_HAVE_ARCH_MEMCPY),y)
 romstage-y += memcpy.c
+endif
 romstage-y += memcmp.c
 romstage-y += cbfs.c
 romstage-y += lzma.c
@@ -19,7 +21,9 @@
 
 ramstage-y += memset.c
 ramstage-y += memchr.c
+ifneq ($(CONFIG_HAVE_ARCH_MEMCPY),y)
 ramstage-y += memcpy.c
+endif
 ramstage-y += memcmp.c
 ramstage-y += memmove.c
 ramstage-y += malloc.c
@@ -43,7 +47,10 @@
 
 driver-$(CONFIG_CONSOLE_NE2K) += ne2k.c
 
-smm-y += memcpy.c cbfs.c memset.c memcmp.c
+ifneq ($(CONFIG_HAVE_ARCH_MEMCPY),y)
+smm-y += memcpy.c
+endif
+smm-y += cbfs.c memset.c memcmp.c
 smm-$(CONFIG_CONSOLE_SERIAL8250) += uart8250.c
 smm-$(CONFIG_CONSOLE_SERIAL8250MEM) += uart8250mem.c
 smm-$(CONFIG_USBDEBUG) += usbdebug.c