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-rw-r--r--tools/ioemu/target-i386-dm/exec-dm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/ioemu/target-i386-dm/exec-dm.c b/tools/ioemu/target-i386-dm/exec-dm.c
index 50df679873..dc4c227355 100644
--- a/tools/ioemu/target-i386-dm/exec-dm.c
+++ b/tools/ioemu/target-i386-dm/exec-dm.c
@@ -448,7 +448,7 @@ static void memcpy_words(void *dst, void *src, size_t n)
{
asm (
" movl %%edx,%%ecx \n"
-#ifdef __x86_64
+#ifdef __x86_64__
" shrl $3,%%ecx \n"
" andl $7,%%edx \n"
" rep movsq \n"