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-rw-r--r--libstdc++-v3/include/bits/c++config6
1 files changed, 6 insertions, 0 deletions
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 04ae4cb7c3a..aca8484e222 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -84,6 +84,12 @@
# define _GLIBCXX_DEPRECATED
#endif
+// Macros for ABI tag attributes.
+#ifndef _GLIBCXX_ABI_TAG_CXX11
+# define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
+#endif
+
+
#if __cplusplus
// Macro for constexpr, to support in mixed 03/0x mode.