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-rw-r--r--libcxx/include/__config6
1 files changed, 5 insertions, 1 deletions
diff --git a/libcxx/include/__config b/libcxx/include/__config
index 88c207c7244..b5e7b763210 100644
--- a/libcxx/include/__config
+++ b/libcxx/include/__config
@@ -715,7 +715,11 @@ typedef __char32_t char32_t;
#endif
#ifndef _LIBCPP_EXPORTED_FROM_ABI
-# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default")))
+# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
+# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default")))
+# else
+# define _LIBCPP_EXPORTED_FROM_ABI
+# endif
#endif
#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
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