Revert the last 3 commits

CMakeLists.txt

-cmake_minimum_required (VERSION 3.16 FATAL_ERROR)
+cmake_minimum_required (VERSION 3.5 FATAL_ERROR)
 
 # KDE Application Version, managed by release script
 set(RELEASE_SERVICE_VERSION_MAJOR "21")
@@ -8,8 +8,8 @@ set(RELEASE_SERVICE_VERSION "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_
 
 project(ktuberling VERSION ${RELEASE_SERVICE_VERSION})
 
-set (QT_MIN_VERSION "5.15.0")
-set (KF5_MIN_VERSION "5.83.0")
+set (QT_MIN_VERSION "5.12.0")
+set (KF5_MIN_VERSION "5.68.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED CONFIG)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} )
@@ -71,16 +71,16 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Android")
         main_mobile.cpp
     )
 
-    qt_add_resources(ktuberling_mobile_SRCS android_data/resources.qrc)
+    qt5_add_resources(ktuberling_mobile_SRCS android_data/resources.qrc)
 
     add_executable(ktuberling_mobile ${ktuberling_mobile_SRCS})
 
     target_link_libraries(ktuberling_mobile
-        Qt::Gui
-        Qt::Svg
-        Qt::Multimedia
-        Qt::Xml
-        Qt::Widgets
+        Qt5::Gui
+        Qt5::Svg
+        Qt5::Multimedia
+        Qt5::Xml
+        Qt5::Widgets
         KF5::ConfigCore )
 
     install(TARGETS ktuberling_mobile RUNTIME DESTINATION bin)
@@ -100,9 +100,9 @@ else()
     add_executable(ktuberling ${ktuberling_SRCS})
 
     target_link_libraries(ktuberling
-        Qt::PrintSupport
-        Qt::Svg
-        Qt::Multimedia
+        Qt5::PrintSupport
+        Qt5::Svg
+        Qt5::Multimedia
         KF5::ConfigWidgets
         KF5::Completion
         KF5::Crash

CMakePresets.json

-{
-    "version": 2,
-    "configurePresets": [
-        {
-            "name": "dev",
-            "displayName": "Build as debug",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "Debug",
-		"CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
-            }
-        },
-        {
-            "name": "asan",
-            "displayName": "Build with Asan support.",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build-asan",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "Debug",
-                "ECM_ENABLE_SANITIZERS" : "'address;undefined'",
-		"CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
-            }
-        },
-        {
-            "name": "unity",
-            "displayName": "Build with CMake unity support.",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build-unity",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "Debug",
-		"CMAKE_UNITY_BUILD": "ON",
-		"CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
-            }
-        },
-        {
-            "name": "release",
-            "displayName": "Build as release mode.",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build-release",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "Release"
-            }
-        },
-        {
-            "name": "profile",
-            "displayName": "profile",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build-profile",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "RelWithDebInfo",
-		"CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
-            }
-	},
-        {
-            "name": "clazy",
-            "displayName": "clazy",
-            "generator": "Ninja",
-            "binaryDir": "${sourceDir}/build-clazy",
-            "cacheVariables": {
-                "CMAKE_BUILD_TYPE": "Debug"
-            },
-            "environment": {
-                "CXX": "clazy",
-                "CCACHE_DISABLE": "ON"
-            }
-        }
-    ],
-    "buildPresets": [
-        {
-            "name": "dev",
-            "configurePreset": "dev"
-        },
-        {
-            "name": "clazy",
-            "configurePreset": "clazy",
-            "environment": {
-                "CLAZY_CHECKS" : "level0,level1,detaching-member,ifndef-define-typo,isempty-vs-count,qrequiredresult-candidates,reserve-candidates,signal-with-return-value,unneeded-cast,function-args-by-ref,function-args-by-value,returning-void-expression,no-ctor-missing-parent-argument,isempty-vs-count,qhash-with-char-pointer-key,raw-environment-function,qproperty-type-mismatch,old-style-connect,qstring-allocations,container-inside-loop,heap-allocated-small-trivial-type,inefficient-qlist,qstring-varargs,level2,detaching-member,heap-allocated-small-trivial-type,isempty-vs-count,qstring-varargs,qvariant-template-instantiation,raw-environment-function,reserve-candidates,signal-with-return-value,thread-with-slots,no-ctor-missing-parent-argument,no-missing-typeinfo",
-                "CCACHE_DISABLE" : "ON"
-            }
-        }
-    ]
-}