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-rw-r--r--arch/x86/lib/Makefile4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 965026472c71..a2d6472895fb 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -29,7 +29,9 @@ ifeq ($(CONFIG_X86_32),y)
lib-y += checksum_32.o
lib-y += strstr_32.o
lib-y += semaphore_32.o string_32.o
-
+ifneq ($(CONFIG_X86_CMPXCHG64),y)
+ lib-y += cmpxchg8b_emu.o
+endif
lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
else
obj-y += io_64.o iomap_copy_64.o