Windows: Suppress Visual Studio 2013 warnings about strtoull()
diff --git a/snmplib/strtoull.c b/snmplib/strtoull.c
index 6c98fc4..9ee53b4 100644
--- a/snmplib/strtoull.c
+++ b/snmplib/strtoull.c
@@ -20,6 +20,8 @@
 
 #include <net-snmp/net-snmp-config.h>
 
+#ifndef HAVE_STRTOULL
+
 #include <errno.h>
 #include <ctype.h>
 #include <limits.h>
@@ -156,3 +158,5 @@
         *endptr = (char *) nptr;
     return 0;
 }
+
+#endif /* HAVE_STRTOULL */
diff --git a/win32/net-snmp/net-snmp-config.h b/win32/net-snmp/net-snmp-config.h
index 131191b..1608563 100644
--- a/win32/net-snmp/net-snmp-config.h
+++ b/win32/net-snmp/net-snmp-config.h
@@ -5,12 +5,14 @@
 #define NET_SNMP_CONFIG_H
 
 /* _MSC_VER values
-   1600 = 10.0 (2010)
-   1500 =  9.0 (2008)
-   1400 =  8.0 (2005)
-   1310 =  7.1 (2003)
-   1300 =  7.0 (2002)
-   1200 =  6.0
+   1800 = MSVC++ 12.0 (Visual Studio 2013)
+   1700 = MSVC++ 11.0 (Visual Studio 2012)
+   1600 = MSVC++ 10.0 (Visual Studio 2010)
+   1500 = MSVC++  9.0 (Visual Studio 2008)
+   1400 = MSVC++  8.0 (Visual Studio 2005)
+   1310 = MSVC++  7.1 (Visual Studio 2003)
+   1300 = MSVC++  7.0 (Visual Studio 2002)
+   1200 = MSVC++  6.0
 */
 
 #ifdef _MSC_VER
@@ -1616,10 +1618,17 @@
 #endif
 
 #ifndef __cplusplus
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4804) // '-' : unsafe use of type 'bool' in operation
+#endif
 enum {
     netsnmp_compile_time_uintptr_t_size_check
         = sizeof(struct netsnmp_compile_time_uintptr_t_size_check_s { int:-!(sizeof(uintptr_t) == sizeof(void*)); })
 };
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
 #endif
 
 /* Define if you have the closesocket function.  */
@@ -1751,7 +1760,11 @@
 #endif
 
 /* Define to 1 if you have the `strtoull' function. */
+#if _MSC_VER >= 1800
+#define HAVE_STRTOULL 1
+#else
 /* #undef HAVE_STRTOULL */
+#endif
 
 /*
  * Module configuration and control starts here.
diff --git a/win32/net-snmp/net-snmp-config.h.in b/win32/net-snmp/net-snmp-config.h.in
index 2469c77..9693730 100644
--- a/win32/net-snmp/net-snmp-config.h.in
+++ b/win32/net-snmp/net-snmp-config.h.in
@@ -5,12 +5,14 @@
 #define NET_SNMP_CONFIG_H
 
 /* _MSC_VER values
-   1600 = 10.0 (2010)
-   1500 =  9.0 (2008)
-   1400 =  8.0 (2005)
-   1310 =  7.1 (2003)
-   1300 =  7.0 (2002)
-   1200 =  6.0
+   1800 = MSVC++ 12.0 (Visual Studio 2013)
+   1700 = MSVC++ 11.0 (Visual Studio 2012)
+   1600 = MSVC++ 10.0 (Visual Studio 2010)
+   1500 = MSVC++  9.0 (Visual Studio 2008)
+   1400 = MSVC++  8.0 (Visual Studio 2005)
+   1310 = MSVC++  7.1 (Visual Studio 2003)
+   1300 = MSVC++  7.0 (Visual Studio 2002)
+   1200 = MSVC++  6.0
 */
 
 #ifdef _MSC_VER
@@ -1758,7 +1760,11 @@
 #endif
 
 /* Define to 1 if you have the `strtoull' function. */
+#if _MSC_VER >= 1800
+#define HAVE_STRTOULL
+#else
 /* #undef HAVE_STRTOULL */
+#endif
 
 /*
  * Module configuration and control starts here.