Fixed incorrect __declspec(dllexport) definition

contrib/server_side/sessions/berkeley_db/bdb.cpp

@@ -242,9 +242,14 @@ private:
 	booster::shared_ptr<bdb_storage> storage_;
 };
 
+#if defined(CPPCMS_WIN32)
+# define STORAGE_API __declspec(dllexport)
+#else
+# define STORAGE_API
+#endif
 
 extern "C" {
-	cppcms::sessions::session_storage_factory *session_factory(cppcms::json::value const &v)
+	STORAGE_API cppcms::sessions::session_storage_factory *session_factory(cppcms::json::value const &v)
 	{
 		std::string dir = v.get<std::string>("directory");
 		return new bdb_factory(dir);

contrib/server_side/sessions/cppdb/cppdb_storage.cpp

@@ -259,7 +259,7 @@ private:
 
 } // anon
 #if defined(CPPCMS_WIN32)
-# define STORAGE_API declspec(__dllexport)
+# define STORAGE_API __declspec(dllexport)
 #else
 # define STORAGE_API
 #endif

contrib/server_side/sessions/sqlite3/session_sqlite_storage.cpp

@@ -364,7 +364,7 @@ private:
 } // anon
 
 #if defined(CPPCMS_WIN32)
-# define STORAGE_API declspec(__dllexport)
+# define STORAGE_API __declspec(dllexport)
 #else
 # define STORAGE_API
 #endif

tests/loadable_storage.cpp

@@ -104,7 +104,7 @@ private:
 } // anon
 
 #if defined(CPPCMS_WIN32)
-# define STORAGE_API declspec(__dllexport)
+# define STORAGE_API __declspec(dllexport)
 #else
 # define STORAGE_API
 #endif