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-rw-r--r--base/atomicops_internals_x86_gcc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/base/atomicops_internals_x86_gcc.h b/base/atomicops_internals_x86_gcc.h
index 002734b2b..08dc5aa 100644
--- a/base/atomicops_internals_x86_gcc.h
+++ b/base/atomicops_internals_x86_gcc.h
@@ -6,6 +6,7 @@
#ifndef BASE_ATOMICOPS_INTERNALS_X86_GCC_H_
#define BASE_ATOMICOPS_INTERNALS_X86_GCC_H_
+#pragma once
// This struct is not part of the public API of this module; clients may not
// use it.