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-rw-r--r--absl/base/config.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/absl/base/config.h b/absl/base/config.h
index ae7a5a15..c29b206a 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -788,4 +788,12 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
#define ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION 1
#endif
+// `ABSL_INTERNAL_HAS_RTTI` determines whether abseil is being compiled with
+// RTTI support.
+#ifdef ABSL_INTERNAL_HAS_RTTI
+#error ABSL_INTERNAL_HAS_RTTI cannot be directly set
+#elif !defined(__GNUC__) || defined(__GXX_RTTI)
+#define ABSL_INTERNAL_HAS_RTTI 1
+#endif // !defined(__GNUC__) || defined(__GXX_RTTI)
+
#endif // ABSL_BASE_CONFIG_H_