diff --git a/libcxx/include/__verbose_abort b/libcxx/include/__verbose_abort
--- a/libcxx/include/__verbose_abort
+++ b/libcxx/include/__verbose_abort
@@ -47,7 +47,7 @@
 
 #  if defined(_LIBCPP_AVAILABILITY_HAS_NO_VERBOSE_ABORT)
 // The decltype is there to suppress -Wunused warnings in this configuration.
-_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR void __use(const char*, ...) { }
+void __use(const char*, ...);
 #    define _LIBCPP_VERBOSE_ABORT(...) (decltype(::std::__use(__VA_ARGS__))(), __builtin_abort())
 #  else
 #    define _LIBCPP_VERBOSE_ABORT(...) ::std::__libcpp_verbose_abort(__VA_ARGS__)