fix add patch to build with gcc 12

de755097bd99999553f777a8ecfdc53e8ec705c9.patch

@@ -0,0 +1,25 @@
+From de755097bd99999553f777a8ecfdc53e8ec705c9 Mon Sep 17 00:00:00 2001
+From: Fabian Vogt <fabian@ritter-vogt.de>
+Date: Mon, 17 Jan 2022 16:12:41 +0100
+Subject: [PATCH] Fix build with GCC 12, missing include
+
+std::memcpy needs #include <cstring>
+---
+ processcore/plugins/network/helper/ConnectionMapping.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/processcore/plugins/network/helper/ConnectionMapping.cpp b/processcore/plugins/network/helper/ConnectionMapping.cpp
+index 3825b99..4bd5b64 100644
+--- a/processcore/plugins/network/helper/ConnectionMapping.cpp
++++ b/processcore/plugins/network/helper/ConnectionMapping.cpp
+@@ -7,6 +7,7 @@
+ 
+ #include "ConnectionMapping.h"
+ 
++#include <cstring>
+ #include <charconv>
+ #include <fstream>
+ #include <iostream>
+-- 
+GitLab
+

libksysguard.spec

@@ -17,6 +17,8 @@ Source0: http://download.kde.org/%{stable}/plasma/%{version}/%{name}-%{version}.
 
 # GCC 8 and older need stdc++fs link library set
 Patch1:            libksysguard-5.22.2.1_fix-processcore-on-gcc8.patch
+# GCC 12 fix (missing include)
+Patch100:       de755097bd99999553f777a8ecfdc53e8ec705c9.patch
 
 BuildRequires:  extra-cmake-modules
 BuildRequires:  kf5-rpm-macros