- lots of code cleanup from the cppcheck

source/shared_lib/include/platform/common/simple_threads.h

@@ -30,6 +30,7 @@ namespace Shared { namespace PlatformCommon {
 class FileCRCPreCacheThreadCallbackInterface {
 public:
 	virtual vector<Texture2D *> processTech(string techName) = 0;
+	virtual ~FileCRCPreCacheThreadCallbackInterface() {}
 };
 
 // =====================================================
@@ -74,6 +75,8 @@ public:
 
 	virtual void setupTask(BaseThread *callingThread) { }
 	virtual void shutdownTask(BaseThread *callingThread) { }
+
+	virtual ~SimpleTaskCallbackInterface() {}
 };
 
 class SimpleTaskThread : public BaseThread

source/shared_lib/include/platform/posix/ircclient.h

@@ -46,6 +46,8 @@ void normalizeNick(char *nick);
 class IRCCallbackInterface {
 public:
     virtual void IRC_CallbackEvent(IRCEventType evt, const char* origin, const char **params, unsigned int count) = 0;
+
+    virtual ~IRCCallbackInterface() {}
 };
 
 class IRCThread : public BaseThread

source/shared_lib/include/platform/posix/miniftpclient.h

@@ -44,7 +44,7 @@ enum FTP_Client_CallbackType {
 
 class FTPClientCallbackInterface {
 public:
-
+	virtual ~FTPClientCallbackInterface() {}
     struct FtpProgressStats {
       double download_total;
       double download_now;

source/shared_lib/include/platform/posix/socket.h

@@ -55,6 +55,8 @@ class FTPClientValidationInterface {
 public:
 	virtual int isValidClientType(uint32 clientIp) = 0;
 	virtual int isClientAllowedToGetFile(uint32 clientIp, const char *username, const char *filename) = 0;
+
+	virtual ~FTPClientValidationInterface() {}
 };
 
 
@@ -62,6 +64,8 @@ public:
 class UPNPInitInterface {
 public:
 	virtual void UPNPInitStatus(bool result) = 0;
+
+	virtual ~UPNPInitInterface() {}
 };
 
 //
@@ -71,6 +75,7 @@ public:
 class DiscoveredServersInterface {
 public:
 	virtual void DiscoveredServers(std::vector<string> serverList) = 0;
+	virtual ~DiscoveredServersInterface() {}
 };
 
 // =====================================================