Fixing some build errors

ICommand/ICommand.cpp

@@ -10,6 +10,11 @@
 #include "ICommandPriv.h"
 #include <algorithm>
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+    #define QT_SPLIT_SKIP_EMPTY_PARTS QString::SkipEmptyParts
+#else
+    #define QT_SPLIT_SKIP_EMPTY_PARTS Qt::SkipEmptyParts
+#endif
 
 ICommand::ICommand(IRC& connection_)
 	: mp(new ICommandPriv(*this, connection_, connection_.getStatus()))
@@ -519,7 +524,7 @@ bool ICommand::tryParseInternal(QString cmdLine)
 	}
 
 	else if (command == MUTERESP) {
-		QStringList list = cmdLine.split(' ', Qt::SkipEmptyParts);
+		QStringList list = cmdLine.split(' ', QT_SPLIT_SKIP_EMPTY_PARTS);
 		if (list.isEmpty()) {
 			print_notEnoughParameters(command);
 			return true;
@@ -529,7 +534,7 @@ bool ICommand::tryParseInternal(QString cmdLine)
 	}
 
 	else if (command == UNMUTERESP) {
-		QStringList list = cmdLine.split(' ', Qt::SkipEmptyParts);
+		QStringList list = cmdLine.split(' ', QT_SPLIT_SKIP_EMPTY_PARTS);
 		if (list.isEmpty()) {
 			print_notEnoughParameters(command);
 			return true;

IRCClient/Utilities.h

@@ -1,6 +1,7 @@
 #ifndef IRCUTILITIES_H
 #define IRCUTILITIES_H
 
+#include <unordered_map>
 #include <string>
 #include <algorithm>