Fix compilation issue with Microsoft Visual Studio 2008

Reported by Allan Cornet.

README.rst

@@ -26,6 +26,9 @@ Installation
 
 The shell commands are ``./autogen.sh; ./configure; make; make install``.
 
+If you want to compile with Microsoft Visual Studio, you need to install
+http://code.google.com/p/msinttypes/ to fill the absence of stdint.h.
+
 Testing
 -------
 

src/modbus-data.c

@@ -16,7 +16,11 @@
  */
 
 #include <stdlib.h>
+#ifndef _MSC_VER
 #include <stdint.h>
+#else
+#include "stdint.h"
+#endif
 #include <string.h>
 #include <assert.h>
 #include <netinet/in.h>

src/modbus-private.h

@@ -18,11 +18,16 @@
 #ifndef _MODBUS_PRIVATE_H_
 #define _MODBUS_PRIVATE_H_
 
-#include <sys/time.h>
+#ifndef _MSC_VER
+# include <stdint.h>
+# include <sys/time.h>
+#else
+# include "stdint.h"
+# include <time.h>
+#endif
 #include <sys/types.h>
-#include <stdint.h>
-
 #include <config.h>
+
 #include "modbus.h"
 
 MODBUS_BEGIN_DECLS

src/modbus-rtu-private.h

@@ -18,7 +18,11 @@
 #ifndef _MODBUS_RTU_PRIVATE_H_
 #define _MODBUS_RTU_PRIVATE_H_
 
+#ifndef _MSC_VER
 #include <stdint.h>
+#else
+#include "stdint.h"
+#endif
 
 #if defined(_WIN32)
 #include <windows.h>

src/modbus-rtu.c

@@ -20,7 +20,9 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
+#ifndef _MSC_VER
 #include <unistd.h>
+#endif
 #include <assert.h>
 
 #include "modbus-private.h"

src/modbus-tcp.c

@@ -19,7 +19,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#ifndef _MSC_VER
 #include <unistd.h>
+#endif
 #include <signal.h>
 #include <sys/types.h>
 

src/modbus.c

@@ -22,7 +22,9 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#ifndef _MSC_VER
 #include <unistd.h>
+#endif
 #include <errno.h>
 #include <limits.h>
 

src/modbus.h

@@ -23,8 +23,13 @@
 #include <sys/param.h>
 #endif
 
+#ifndef _MSC_VER
 #include <stdint.h>
 #include <sys/time.h>
+#else
+#include "stdint.h"
+#include <time.h>
+#endif
 
 #include "modbus-version.h"
 

tests/unit-test.h

@@ -24,7 +24,11 @@
 #include <inttypes.h>
 #endif
 #ifdef HAVE_STDINT_H
-#include <stdint.h>
+# ifndef _MSC_VER
+# include <stdint.h>
+# else
+# include "stdint.h"
+# endif
 #endif
 
 #define SERVER_ID 17