Index: libcxx/include/streambuf
===================================================================
--- libcxx/include/streambuf
+++ libcxx/include/streambuf
@@ -258,7 +258,7 @@
     inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
     void pbump(int __n) { __nout_ += __n; }
 
-    _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
+    _LIBCPP_INLINE_VISIBILITY
     void __pbump(streamsize __n) { __nout_ += __n; }
 
     inline _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY