Index: lib/sanitizer_common/sanitizer_internal_defs.h
===================================================================
--- lib/sanitizer_common/sanitizer_internal_defs.h
+++ lib/sanitizer_common/sanitizer_internal_defs.h
@@ -22,7 +22,11 @@
 
 // Only use SANITIZER_*ATTRIBUTE* before the function return type!
 #if SANITIZER_WINDOWS
+#if SANITIZER_IMPORT_INTERFACE
+# define SANITIZER_INTERFACE_ATTRIBUTE __declspec(dllimport)
+#else
 # define SANITIZER_INTERFACE_ATTRIBUTE __declspec(dllexport)
+#endif
 # define SANITIZER_WEAK_ATTRIBUTE
 #elif SANITIZER_GO
 # define SANITIZER_INTERFACE_ATTRIBUTE
Index: lib/sanitizer_common/sanitizer_win_defs.h
===================================================================
--- lib/sanitizer_common/sanitizer_win_defs.h
+++ lib/sanitizer_common/sanitizer_win_defs.h
@@ -73,6 +73,12 @@
 // Name for exported implementation of weak function.
 # define WEAK_EXPORT_NAME(Name) Name##__dll
 
+#if SANITIZER_IMPORT_INTERFACE
+# define WIN_INTERFACE_ATTRIBUTE __declspec(dllimport)
+#else
+# define WIN_INTERFACE_ATTRIBUTE __declspec(dllexport)
+#endif
+
 // Use this macro when you need to define and export a weak function from a
 // library. For example:
 //   WIN_WEAK_EXPORT_DEF(bool, compare, int a, int b) { return a > b; }
@@ -87,7 +93,7 @@
 //   WIN_WEAK_EXPORT_DECL(bool, compare, int a, int b);
 # define WIN_WEAK_EXPORT_DECL(ReturnType, Name, ...)                           \
   extern "C" ReturnType Name(__VA_ARGS__);                                     \
-  extern "C" __declspec(dllexport)                                             \
+  extern "C" WIN_INTERFACE_ATTRIBUTE                                           \
   ReturnType WEAK_EXPORT_NAME(Name)(__VA_ARGS__)
 
 // Use this macro when you need to import a weak function from a library. It