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diff --git a/include/c++/stl/stl/config/_detect_dll_or_lib.h b/include/c++/stl/stl/config/_detect_dll_or_lib.h
new file mode 100644
index 0000000..39049fa
--- /dev/null
+++ b/include/c++/stl/stl/config/_detect_dll_or_lib.h
@@ -0,0 +1,70 @@
+/* File used to define macros:
+ * _STLP_USE_DYNAMIC_LIB: To signal use STLport as a dll or build of the
+ *                        STLport dlls.
+ * _STLP_USE_STATIC_LIB: To signal use of STLport as a static lib or build of
+ *                       the STLport static libs.
+ * _STLP_USING_CROSS_NATIVE_RUNTIME_LIB: Signal that we are using a native runtime
+ *                                       in a version different from the STLport one.
+ * If _STLP_USE_DYNAMIC_LIB or _STLP_USE_STATIC_LIB is alreday defined it means that
+ * user forces use of a specific version. In this case _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+ * will surely be defined otherwise there is no need to force macro defines.
+ *
+ * Before including this file the compiler must define:
+ * _STLP_DLL: If we are building a dll
+ * _STLP_RUNTIME_DLL: If we are using native runtime as a dll
+ */
+#if defined (__BUILDING_STLPORT)
+#  undef _STLP_USE_DYNAMIC_LIB
+#  undef _STLP_USE_STATIC_LIB
+#  if defined (_STLP_DLL)
+/* We are building the STLport dll */
+#    define _STLP_USE_DYNAMIC_LIB
+#    if !defined (_STLP_RUNTIME_DLL)
+#      define _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+#    endif
+#  else
+#    define _STLP_USE_STATIC_LIB
+#    if defined (_STLP_RUNTIME_DLL)
+#      define _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+#    endif
+#  endif
+#else
+#  if !defined (_STLP_NO_IOSTREAMS)
+/* STLport use only depend on _STLP_RUNTIME_DLL as we are replacing
+ * the native runtime.
+ */
+#    if defined (_STLP_RUNTIME_DLL)
+#      if !defined (_STLP_USE_STATIC_LIB)
+#        if !defined (_STLP_USE_DYNAMIC_LIB)
+#          define _STLP_USE_DYNAMIC_LIB
+#        endif
+#      else
+/* The user is forcing use of STLport as a dynamic library. We signal it so
+ * that the STLport namespace will be modify to report such a combination
+ * and force the user to link with the rebuilt STLport library.
+ */
+#        define _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+#      endif
+#    else
+#      if !defined(_STLP_USE_DYNAMIC_LIB)
+#        if !defined (_STLP_USE_STATIC_LIB)
+#          define _STLP_USE_STATIC_LIB
+#        endif
+#      else
+/* Idem previous remark but the user forces use of the static native runtime.
+ */
+#        define _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+#      endif
+#    endif
+#  else
+/* If we do not build and use STLport libs we consider that we are in a static lib
+ * mode as only dynamic lib needs additional export/import specifier.
+ */
+#    define _STLP_USE_STATIC_LIB
+#  endif
+#endif
+
+/* we don't have a static native runtime library on evc3/evc4 */
+#ifdef _STLP_WCE
+#  undef _STLP_USING_CROSS_NATIVE_RUNTIME_LIB
+#endif