diff --git a/example/c/lib_buffer_unpack.c b/example/c/lib_buffer_unpack.c
index 4a4c6a6b..4c7b69a9 100644
--- a/example/c/lib_buffer_unpack.c
+++ b/example/c/lib_buffer_unpack.c
@@ -71,7 +71,11 @@ void unpack(receiver* r) {
     while (true) {
         recv_len = receiver_to_unpacker(r, EACH_RECV_SIZE, unp);
         if (recv_len == 0) break; // (reached end of input)
+#if defined(_MSC_VER) || defined(__MINGW32__)
+        printf("receive count: %d %Id bytes received.\n", recv_count++, recv_len);
+#else // defined(_MSC_VER) || defined(__MINGW32__)
         printf("receive count: %d %zd bytes received.\n", recv_count++, recv_len);
+#endif // defined(_MSC_VER) || defined(__MINGW32__)
         ret = msgpack_unpacker_next(unp, &result);
         while (ret == MSGPACK_UNPACK_SUCCESS) {
             msgpack_object obj = result.data;
diff --git a/example/cpp03/stream.cpp b/example/cpp03/stream.cpp
index cc18a162..9b07c111 100644
--- a/example/cpp03/stream.cpp
+++ b/example/cpp03/stream.cpp
@@ -16,6 +16,12 @@
 #include <errno.h>
 #include <pthread.h>
 
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#include <io.h>
+#include <fcntl.h>
+#define pipe(fds) _pipe(fds, 4096, _O_BINARY)
+#endif // _MSC_VER || __MINGW32__
+
 class Server {
 public:
     Server(int sock) : m_sock(sock) { }
diff --git a/test/msgpack_basic.cpp b/test/msgpack_basic.cpp
index a50f7944..c191a03c 100644
--- a/test/msgpack_basic.cpp
+++ b/test/msgpack_basic.cpp
@@ -11,11 +11,11 @@
 
 #include <gtest/gtest.h>
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
 #define msgpack_rand() ((double)rand() / RAND_MAX)
-#else  // _MSC_VER
+#else  // _MSC_VER || __MINGW32__
 #define msgpack_rand() drand48()
-#endif // _MSC_VER
+#endif // _MSC_VER || __MINGW32__
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
diff --git a/test/msgpack_c.cpp b/test/msgpack_c.cpp
index 6eb05254..f6ba1713 100644
--- a/test/msgpack_c.cpp
+++ b/test/msgpack_c.cpp
@@ -6,11 +6,11 @@
 
 #include <gtest/gtest.h>
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
 #define msgpack_rand() ((double)rand() / RAND_MAX)
-#else  // _MSC_VER
+#else  // _MSC_VER || __MINGW32__
 #define msgpack_rand() drand48()
-#endif // _MSC_VER
+#endif // _MSC_VER || __MINGW32__
 
 using namespace std;