Make sure to memset ios base on windows
diff --git a/src/main/include/log4cxx/private/log4cxx_private.h.in b/src/main/include/log4cxx/private/log4cxx_private.h.in
index 4726816..b1d5958 100644
--- a/src/main/include/log4cxx/private/log4cxx_private.h.in
+++ b/src/main/include/log4cxx/private/log4cxx_private.h.in
@@ -53,4 +53,8 @@
 #define LOG4CXX_WIN32_THREAD_FMTSPEC "0x%.8x"
 #define LOG4CXX_APR_THREAD_FMTSPEC "0x%pt"
 
+#if defined(_MSC_VER)
+#define LOG4CXX_MEMSET_IOS_BASE 1
+#endif
+
 #endif