make GUI compile on MSVC

3rdparty/python-console/modified/pyconsole.cc

@@ -95,7 +95,7 @@ void PythonConsole::parseEvent( const ParseMessage& message )
     }
 
     // interpret valid user input
-    int errorCode;
+    int errorCode = 0;
     std::string res;
     if ( message.message.size() )
         res = pyinterpreter_execute( message.message, &errorCode );

3rdparty/python-console/modified/pyinterpreter.cc

@@ -38,9 +38,9 @@ static std::list<std::string> m_suggestions;
 
 template <typename... Args> std::string string_format(const std::string &format, Args... args)
 {
-    size_t size = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; // Extra space for '\0'
+    size_t size = snprintf(nullptr, 0, format.c_str(), args...) + 1; // Extra space for '\0'
     std::unique_ptr<char[]> buf(new char[size]);
-    std::snprintf(buf.get(), size, format.c_str(), args...);
+    snprintf(buf.get(), size, format.c_str(), args...);
     return std::string(buf.get(), buf.get() + size - 1); // We don't want the '\0' inside
 }