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-rw-r--r--library/cpp/threading/light_rw_lock/lightrwlock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/cpp/threading/light_rw_lock/lightrwlock.h b/library/cpp/threading/light_rw_lock/lightrwlock.h
index 931a1817bce..bfe4e9b00cd 100644
--- a/library/cpp/threading/light_rw_lock/lightrwlock.h
+++ b/library/cpp/threading/light_rw_lock/lightrwlock.h
@@ -85,7 +85,7 @@ namespace NS_LightRWLock {
}
#endif
-#if defined(_x86_64_) || defined(_i386_) || defined (__aarch64__) || defined (__powerpc64__)
+#if defined(_x86_64_) || defined(_i386_) || defined (__aarch64__) || defined (__arm__) || defined (__powerpc64__)
static bool AtomicLockHighByte(volatile int& item) {
union TA {
int x;