WIP: Add CLI-wrapper for Windows

Starting the console from a GUI application is not working very well - so let's just provide a 2nd executable for the CLI. It will be a simple console application that merely invokes the main application passing all standard I/O.
2023-05-06 22:48:27 +02:00
41 changed files with 401 additions and 1164 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 project(c++utilities)

@ -96,11 +96,17 @@ set(CMAKE_TEMPLATE_FILES
    cmake/templates/global.h.in
    cmake/templates/version.h.in
    cmake/templates/template.pc.in)
-if (WIN32)
-    list(APPEND CMAKE_TEMPLATE_FILES cmake/templates/windows.rc.in cmake/templates/windows-cli-wrapper.rc.in
-         cmake/templates/cli-wrapper.cpp)
+set(SCRIPT_FILES)
+if (MINGW)
+    list(APPEND CMAKE_TEMPLATE_FILES
+        cmake/templates/windows.rc.in
+        cmake/templates/windows-cli-wrapper.rc.in
+    )
+    list(APPEND SCRIPT_FILES scripts/wine.sh)
+endif ()
+if (WIN32)
+    list(APPEND CMAKE_TEMPLATE_FILES cmake/templates/cli-wrapper.cpp)
 endif ()
-set(EXCLUDED_FILES cmake/templates/cli-wrapper.cpp)

 set(DOC_FILES README.md doc/buildvariables.md doc/testapplication.md)
 set(EXTRA_FILES tests/calculateoverallcoverage.awk coding-style.clang-format)
@ -116,15 +122,14 @@ set(META_APP_AUTHOR "Martchus")
 set(META_APP_URL "https://github.com/${META_APP_AUTHOR}/${META_PROJECT_NAME}")
 set(META_APP_DESCRIPTION "Useful C++ classes and routines such as argument parser, IO and conversion utilities")
 set(META_VERSION_MAJOR 5)
-set(META_VERSION_MINOR 24)
-set(META_VERSION_PATCH 9)
+set(META_VERSION_MINOR 23)
+set(META_VERSION_PATCH 0)

 # find required 3rd party libraries
 include(3rdParty)
 use_iconv(AUTO_LINKAGE REQUIRED)

 # configure use of native file buffer and its backend implementation if enabled
-set(REQUIRED_BOOST_COMPONENTS "")
 set(USE_NATIVE_FILE_BUFFER_BY_DEFAULT OFF)
 if (WIN32
    OR ANDROID
@ -154,7 +159,7 @@ if (USE_NATIVE_FILE_BUFFER)
        endforeach ()
    else ()
        message(STATUS "Using boost::iostreams::stream_buffer<boost::iostreams::file_descriptor_sink> for NativeFileStream")
-        list(APPEND REQUIRED_BOOST_COMPONENTS iostreams)
+        use_package(TARGET_NAME Boost::iostreams PACKAGE_NAME Boost PACKAGE_ARGS "REQUIRED;COMPONENTS;iostreams")
        foreach (NATIVE_FILE_STREAM_IMPL_FILE ${NATIVE_FILE_STREAM_IMPL_FILES})
            set_property(
                SOURCE ${NATIVE_FILE_STREAM_IMPL_FILE}
@ -166,26 +171,6 @@ else ()
    message(STATUS "Using std::fstream for NativeFileStream")
 endif ()

-# configure use of Boost.Process for launching test applications on Windows
-if (WIN32)
-    option(USE_BOOST_PROCESS "enables use of Boost.Process to launch test applications" ON)
-    if (USE_BOOST_PROCESS)
-        list(APPEND REQUIRED_BOOST_COMPONENTS filesystem)
-        list(APPEND META_PUBLIC_COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_BOOST_PROCESS)
-        list(APPEND PRIVATE_LIBRARIES ws2_32) # needed by Boost.Asio
-        use_package(TARGET_NAME Threads::Threads PACKAGE_NAME Threads PACKAGE_ARGS REQUIRED)
-    endif ()
-endif ()
-
-# configure usage of Boost
-if (REQUIRED_BOOST_COMPONENTS)
-    set(BOOST_ARGS REQUIRED COMPONENTS ${REQUIRED_BOOST_COMPONENTS})
-    use_package(TARGET_NAME Boost::boost PACKAGE_NAME Boost PACKAGE_ARGS "${BOOST_ARGS}")
-    foreach (COMPONENT ${REQUIRED_BOOST_COMPONENTS})
-        use_package(TARGET_NAME Boost::${COMPONENT} PACKAGE_NAME Boost PACKAGE_ARGS "${BOOST_ARGS}")
-    endforeach ()
-endif ()
-
 # configure required libraries for std::filesystem
 option(USE_STANDARD_FILESYSTEM "uses std::filesystem; if disabled Bash completion for files and directories is not working"
       ON)
--- a/CMakePresets.json
+++ b/CMakePresets.json
@ -21,27 +21,6 @@
        "WEBVIEW_PROVIDER": {"type": "STRING", "value": "none"}
      }
    },
-    {
-      "name": "clang",
-      "inherits": "default",
-      "displayName": "Use clang/clang++",
-      "description": "Enforces use of clang/clang++ even when it is not the system default",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/default-clang",
-      "cacheVariables": {
-        "CMAKE_C_COMPILER": {"type": "STRING", "value": "clang"},
-        "CMAKE_CXX_COMPILER": {"type": "STRING", "value": "clang++"}
-      }
-    },
-    {
-      "name": "libc++",
-      "inherits": "clang",
-      "displayName": "Use clang/clang++ and libc++",
-      "description": "Enforces use of clang/clang++ and libc++ even when it is not the system default",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/default-clang-libc++",
-      "cacheVariables": {
-        "CMAKE_CXX_FLAGS": {"type": "STRING", "value": "$env{CXXFLAGS} -stdlib=libc++"}
-      }
-    },
    {
      "name": "no-kde",
      "inherits": "default",
@ -90,23 +69,6 @@
        "CONFIGURATION_TARGET_SUFFIX": {"type": "STRING", "value": "devel"}
      }
    },
-    {
-      "name": "devel-clang",
-      "inherits": ["devel", "clang"],
-      "displayName": "Development config using clang",
-      "description": "Combination of devel and libc++",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-clang"
-    },
-    {
-      "name": "devel-libc++",
-      "inherits": ["devel", "libc++"],
-      "displayName": "Development config using libc++",
-      "description": "Combination of devel and libc++",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-libc++",
-      "cacheVariables": {
-        "ENABLE_CPP_UNIT": {"type": "BOOL", "value": "OFF"}
-      }
-    },
    {
      "name": "devel-qt6",
      "inherits": ["qt6", "devel"],
@ -115,37 +77,9 @@
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-qt6",
      "cacheVariables": {
        "QT_PACKAGE_PREFIX": {"type": "STRING", "value": "Qt6"},
-        "QT_MAJOR_VERSION": {"type": "STRING", "value": "6"},
-        "KF_PACKAGE_PREFIX": {"type": "STRING", "value": "KF6"},
-        "BUILD_WITH_QT6": {"type": "BOOL", "value": "ON"},
-        "NO_PLASMOID": {"type": "BOOL", "value": "ON"},
-        "NO_FILE_ITEM_ACTION_PLUGIN": {"type": "BOOL", "value": "ON"}
+        "BUILD_WITH_QT6": {"type": "BOOL", "value": "ON"}
      }
    },
-    {
-      "name": "devel-unity",
-      "inherits": ["devel-qt6"],
-      "displayName": "Development config creating a unity build using Qt 6",
-      "description": "Same as devel-qt6 but configures makes a unity build",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-unity",
-      "cacheVariables": {
-        "CMAKE_UNITY_BUILD": {"type": "BOOL", "value": "ON"}
-      }
-    },
-    {
-      "name": "devel-clang-qt6",
-      "inherits": ["qt6", "devel-clang"],
-      "displayName": "Development config using clang and Qt 6",
-      "description": "Combination of qt6 and devel-clang",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-clang-qt6"
-    },
-    {
-      "name": "devel-libc++-qt6",
-      "inherits": ["qt6", "devel-libc++"],
-      "displayName": "Development config using libc++ and Qt 6",
-      "description": "Combination of qt6 and devel-libc++",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/devel-libc++-qt6"
-    },
    {
      "name": "debug",
      "inherits": "devel",
@ -156,71 +90,9 @@
        "CMAKE_BUILD_TYPE": {"type": "STRING", "value": "Debug"}
      }
    },
-    {
-      "name": "debug-qt6",
-      "inherits": ["debug", "devel-qt6"],
-      "displayName": "Generic debug build with development config using Qt 6",
-      "description": "Same as devel-qt6 but creates a debug build",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/debug-qt6"
-    },
-    {
-      "name": "debug-kde",
-      "inherits": "debug-qt6",
-      "displayName": "Generic debug build with development config with KDE integrations enabled",
-      "description": "Same as debug-qt6 but with KDE integrations enabled",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/debug-kde",
-      "cacheVariables": {
-        "NO_PLASMOID": {"type": "BOOL", "value": "OFF"},
-        "NO_FILE_ITEM_ACTION_PLUGIN": {"type": "BOOL", "value": "OFF"}
-      }
-    },
-    {
-      "name": "debug-kde-custom",
-      "inherits": "debug-kde",
-      "displayName": "Generic debug build with development config using custom KDE build",
-      "description": "Same as debug-kde but with custom KDE installation from KDE_INSTALL_DIR",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/debug-kde-custom",
-      "cacheVariables": {
-        "CMAKE_FIND_ROOT_PATH": {"type": "PATH", "value": "$env{KDE_INSTALL_DIR}"},
-        "CMAKE_INSTALL_PREFIX": {"type": "PATH", "value": "$env{KDE_INSTALL_DIR}"}
-      }
-    },
-    {
-      "name": "arch-*-w64-mingw32",
-      "inherits": ["no-webview", "no-kde"],
-      "environment": {
-        "CPPFLAGS": "-D_FORTIFY_SOURCE=3 -D_GLIBCXX_ASSERTIONS",
-        "CFLAGS": "$env{CPPFLAGS} -O2 -pipe -fno-plt -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection",
-        "CXXFLAGS": "$env{CPPFLAGS} -O2 -pipe -fno-plt -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection",
-        "LDFLAGS": "-Wl,-O1,--sort-common,--as-needed -fstack-protector"
-      },
-      "cacheVariables": {
-        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "ON"},
-        "VERSIONED_MINGW_LIBRARIES": {"type": "BOOL", "value": "ON"},
-        "ENABLE_TARGETS_FOR_MINGW_CROSS_PACKAGING": {"type": "BOOL", "value": "ON"}
-      }
-    },
-    {
-      "name": "arch-i686-w64-mingw32",
-      "inherits": "arch-*-w64-mingw32",
-      "displayName": "Target i686-w64-mingw32 using Arch Linux's mingw-w64 packaging",
-      "description": "Build targeting i686-w64-mingw32, paths and flags are specific to Arch Linux's mingw-w64 packaging",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32",
-      "toolchainFile": "/usr/share/mingw/toolchain-i686-w64-mingw32.cmake",
-      "environment": {
-        "CROSS_TOOL_PREFIX": "i686-w64-mingw32-",
-        "CROSS_INSTALL_PREFIX": "/usr/i686-w64-mingw32",
-        "PATH": "$env{CROSS_INSTALL_PREFIX}/bin:$penv{PATH}"
-      },
-      "cacheVariables": {
-        "CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/include"},
-        "CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/include"},
-        "CMAKE_CROSSCOMPILING_EMULATOR": {"type": "PATH", "value": "/usr/bin/i686-w64-mingw32-wine"}
-      }
-    },
    {
      "name": "arch-x86_64-w64-mingw32",
-      "inherits": "arch-*-w64-mingw32",
+      "inherits": ["no-webview", "no-kde"],
      "displayName": "Target x86_64-w64-mingw32 using Arch Linux's mingw-w64 packaging",
      "description": "Build targeting x86_64-w64-mingw32, paths and flags are specific to Arch Linux's mingw-w64 packaging",
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32",
@ -228,28 +100,20 @@
      "environment": {
        "CROSS_TOOL_PREFIX": "x86_64-w64-mingw32-",
        "CROSS_INSTALL_PREFIX": "/usr/x86_64-w64-mingw32",
+        "CPPFLAGS": "-D_FORTIFY_SOURCE=2 -D_GLIBCXX_ASSERTIONS",
+        "CFLAGS": "$env{CPPFLAGS} -O2 -pipe -fno-plt -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection",
+        "CXXFLAGS": "$env{CPPFLAGS} -O2 -pipe -fno-plt -fexceptions --param=ssp-buffer-size=4 -Wformat -Werror=format-security -fcf-protection",
+        "LDFLAGS": "-Wl,-O1,--sort-common,--as-needed -fstack-protector",
        "PATH": "$env{CROSS_INSTALL_PREFIX}/bin:$penv{PATH}"
      },
      "cacheVariables": {
+        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "ON"},
+        "VERSIONED_MINGW_LIBRARIES": {"type": "BOOL", "value": "ON"},
        "CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/include"},
        "CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/include"},
        "CMAKE_CROSSCOMPILING_EMULATOR": {"type": "PATH", "value": "/usr/bin/x86_64-w64-mingw32-wine"}
      }
    },
-    {
-      "name": "arch-i686-w64-mingw32-static",
-      "inherits": "arch-i686-w64-mingw32",
-      "displayName": "Target i686-w64-mingw32 using Arch Linux's mingw-w64 packaging (static)",
-      "description": "Build targeting i686-w64-mingw32, paths and flags are specific to Arch Linux's mingw-w64 packaging",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-static",
-      "toolchainFile": "/usr/share/mingw/toolchain-i686-w64-mingw32-static.cmake",
-      "cacheVariables": {
-        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "OFF"},
-        "CMAKE_FIND_LIBRARY_SUFFIXES": {"type": "STRING", "value": ".a;.lib"},
-        "STATIC_LIBRARY_LINKAGE": {"type": "BOOL", "value": "ON"},
-        "STATIC_LINKAGE": {"type": "BOOL", "value": "ON"}
-      }
-    },
    {
      "name": "arch-x86_64-w64-mingw32-static",
      "inherits": "arch-x86_64-w64-mingw32",
@ -258,19 +122,9 @@
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-static",
      "toolchainFile": "/usr/share/mingw/toolchain-x86_64-w64-mingw32-static.cmake",
      "cacheVariables": {
-        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "OFF"},
-        "CMAKE_FIND_LIBRARY_SUFFIXES": {"type": "STRING", "value": ".a;.lib"},
-        "STATIC_LIBRARY_LINKAGE": {"type": "BOOL", "value": "ON"},
-        "STATIC_LINKAGE": {"type": "BOOL", "value": "ON"}
+        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "OFF"}
      }
    },
-    {
-      "name": "arch-i686-w64-mingw32-qt6",
-      "inherits": ["qt6", "arch-i686-w64-mingw32"],
-      "displayName": "Combination of qt6 and arch-i686-w64-mingw32",
-      "description": "See description of qt6 and arch-i686-w64-mingw32",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-qt6"
-    },
    {
      "name": "arch-x86_64-w64-mingw32-qt6",
      "inherits": ["qt6", "arch-x86_64-w64-mingw32"],
@ -278,13 +132,6 @@
      "description": "See description of qt6 and arch-x86_64-w64-mingw32",
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-qt6"
    },
-    {
-      "name": "arch-i686-w64-mingw32-static-qt6",
-      "inherits": ["qt6", "arch-i686-w64-mingw32-static"],
-      "displayName": "Combination of qt6 and arch-i686-w64-mingw32-static",
-      "description": "See description of qt6 and arch-i686-w64-mingw32-static",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-static-qt6"
-    },
    {
      "name": "arch-x86_64-w64-mingw32-static-qt6",
      "inherits": ["qt6", "arch-x86_64-w64-mingw32-static"],
@ -292,13 +139,6 @@
      "description": "See description of qt6 and arch-x86_64-w64-mingw32-static",
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-static-qt6"
    },
-    {
-      "name": "arch-i686-w64-mingw32-devel",
-      "inherits": ["devel", "arch-i686-w64-mingw32"],
-      "displayName": "Combination of devel and arch-i686-w64-mingw32",
-      "description": "See descriptions of devel and arch-i686-w64-mingw32",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-devel"
-    },
    {
      "name": "arch-x86_64-w64-mingw32-devel",
      "inherits": ["devel", "arch-x86_64-w64-mingw32"],
@ -306,34 +146,6 @@
      "description": "See descriptions of devel and arch-x86_64-w64-mingw32",
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-devel"
    },
-    {
-      "name": "arch-i686-w64-mingw32-devel-qt6",
-      "inherits": ["qt6", "devel", "arch-i686-w64-mingw32"],
-      "displayName": "Combination of qt6, devel and arch-i686-w64-mingw32",
-      "description": "See descriptions of devel and arch-i686-w64-mingw32",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-devel"
-    },
-    {
-      "name": "arch-x86_64-w64-mingw32-devel-qt6",
-      "inherits": ["qt6", "devel", "arch-x86_64-w64-mingw32"],
-      "displayName": "Combination of qt6, devel and arch-x86_64-w64-mingw32",
-      "description": "See descriptions of devel and arch-x86_64-w64-mingw32",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-devel"
-    },
-    {
-      "name": "arch-i686-w64-mingw32-static-devel-qt6",
-      "inherits": ["qt6", "devel", "arch-i686-w64-mingw32-static"],
-      "displayName": "Combination of qt6, devel and arch-i686-w64-mingw32-static",
-      "description": "See descriptions of devel and arch-i686-w64-mingw32-static",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-i686-w64-mingw32-devel"
-    },
-    {
-      "name": "arch-x86_64-w64-mingw32-static-devel-qt6",
-      "inherits": ["qt6", "devel", "arch-x86_64-w64-mingw32-static"],
-      "displayName": "Combination of qt6, devel and arch-x86_64-w64-mingw32-static",
-      "description": "See descriptions of devel and arch-x86_64-w64-mingw32-static",
-      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/arch-x86_64-w64-mingw32-devel"
-    },
    {
      "name": "arch-static-compat",
      "inherits": ["no-webview", "no-kde", "qt6"],
@ -358,14 +170,10 @@
        "CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/include"},
        "CMAKE_INSTALL_PREFIX": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}"},
        "CMAKE_FIND_ROOT_PATH": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}"},
-        "CMAKE_SKIP_BUILD_RPATH": {"type": "BOOL", "value": "ON"},
-        "CMAKE_SKIP_INSTALL_RPATH": {"type": "BOOL", "value": "ON"},
        "CMAKE_DISABLE_FIND_PACKAGE_harfbuzz": {"type": "BOOL", "value": "ON"},
        "Boost_USE_STATIC_RUNTIME": {"type": "BOOL", "value": "ON"},
        "GLIB2_USE_PKG_CONFIG": {"type": "BOOL", "value": "ON"},
-        "WAYLAND_USE_PKG_CONFIG": {"type": "BOOL", "value": "ON"},
-        "OPENGL_glu_LIBRARY": {"type": "PATH", "value": "$env{CROSS_INSTALL_PREFIX}/lib/libGLU.a"},
-        "USE_BUNDLED_RTMIDI": {"type": "BOOL", "value": "ON"}
+        "WAYLAND_USE_PKG_CONFIG": {"type": "BOOL", "value": "ON"}
      }
    },
    {
@ -379,13 +187,12 @@
      "name": "win-x64-msvc-static",
      "inherits": ["no-webview", "no-kde", "qt6"],
      "displayName": "Target x64-windows-static on Windows",
-      "description": "Build on Windows targeting x64-windows-static using MSVC, Qt 6 (for Qt libs and CMake/Ninja), vcpkg (for other dependencies) and MSYS2 (for Perl, Go, ffmpeg and other tools)",
+      "description": "Build on Windows targeting x64-windows-static using MSVC, Qt 6 (for Qt libs and CMake/Ninja), vcpkg (for other dependencies) and MSYS2 (for Perl)",
      "binaryDir": "$env{BUILD_DIR}/${sourceDirName}/win-x64-msvc-static",
      "environment": {
-        "INCLUDE": "$env{MSVC_ROOT}/include;$env{MSVC_ROOT}/ATLMFC/include;$env{WIN_KITS_ROOT}/include/$env{WIN_KITS_VERSION}/ucrt;$env{WIN_KITS_ROOT}//include/$env{WIN_KITS_VERSION}//um;$env{WIN_KITS_ROOT}//include/$env{WIN_KITS_VERSION}//shared;$env{WIN_KITS_ROOT}/include/$env{WIN_KITS_VERSION}//winrt;$env{WIN_KITS_ROOT}/include/$env{WIN_KITS_VERSION}//cppwinrt",
-        "LIB": "$env{MSVC_ROOT}/ATLMFC/lib/x64;$env{MSVC_ROOT}/lib/x64;$env{WIN_KITS_ROOT}/lib/$env{WIN_KITS_VERSION}/ucrt/x64;$env{WIN_KITS_ROOT}/lib/$env{WIN_KITS_VERSION}//um/x64",
-        "LIBPATH": "$env{MSVC_ROOT}/ATLMFC/lib/x64;$env{MSVC_ROOT}/lib/x64;$env{WIN_KITS_ROOT}/lib/$env{WIN_KITS_VERSION}/ucrt/x64;$env{WIN_KITS_ROOT}/lib/$env{WIN_KITS_VERSION}/um/x64",
-        "GOROOT": "$env{MSYS2_ROOT}/mingw64/lib/go"
+        "INCLUDE": "$env{MSVC_ROOT}/include;$env{MSVC_ROOT}/ATLMFC/include;$env{WIN_KITS_ROOT}/include/10.0.22000.0/ucrt;$env{WIN_KITS_ROOT}//include/10.0.22000.0//um;$env{WIN_KITS_ROOT}//include/10.0.22000.0//shared;$env{WIN_KITS_ROOT}/include/10.0.22000.0//winrt;$env{WIN_KITS_ROOT}/include/10.0.22000.0//cppwinrt",
+        "LIB": "$env{MSVC_ROOT}/ATLMFC/lib/x64;$env{MSVC_ROOT}/lib/x64;$env{WIN_KITS_ROOT}/lib/10.0.22000.0/ucrt/x64;$env{WIN_KITS_ROOT}/lib/10.0.22000.0//um/x64",
+        "LIBPATH": "$env{MSVC_ROOT}/ATLMFC/lib/x64;$env{MSVC_ROOT}/lib/x64;$env{WIN_KITS_ROOT}/lib/10.0.22000.0/ucrt/x64;$env{WIN_KITS_ROOT}/lib/10.0.22000.0/um/x64"
      },
      "cacheVariables": {
        "BUILD_SHARED_LIBS": {"type": "BOOL", "value": "OFF"},
@ -397,9 +204,9 @@
        "CMAKE_AR_COMPILER": {"type": "FILEPATH", "value": "$env{MSVC_ROOT}/bin/Hostx64/x64/lib.exe"},
        "CMAKE_C_COMPILER": {"type": "FILEPATH", "value": "$env{MSVC_ROOT}/bin/HostX64/x64/cl.exe"},
        "CMAKE_CXX_COMPILER": {"type": "FILEPATH", "value": "$env{MSVC_ROOT}/bin/HostX64/x64/cl.exe"},
-        "CMAKE_RC_COMPILER": {"type": "FILEPATH", "value": "$env{WIN_KITS_ROOT}/bin/$env{WIN_KITS_VERSION}/x64/rc.exe"},
+        "CMAKE_RC_COMPILER": {"type": "FILEPATH", "value": "$env{WIN_KITS_ROOT}/bin/10.0.22000.0/x64/rc.exe"},
        "CMAKE_LINKER": {"type": "FILEPATH", "value": "$env{MSVC_ROOT}/bin/Hostx64/x64/link.exe"},
-        "CMAKE_MT": {"type": "FILEPATH", "value": "$env{WIN_KITS_ROOT}/bin/$env{WIN_KITS_VERSION}/x64/mt.exe"},
+        "CMAKE_MT": {"type": "FILEPATH", "value": "$env{WIN_KITS_ROOT}/bin/10.0.22000.0/x64/mt.exe"},
        "CMAKE_MSVC_RUNTIME_LIBRARY": {"type": "STRING", "value": "MultiThreaded$<$<CONFIG:Debug>:Debug>"},
        "CMAKE_CXX_FLAGS_DEBUG": {"type": "STRING", "value": "/MTd /Zi /Ob0 /Od /RTC1"},
        "CMAKE_CXX_FLAGS_RELEASE": {"type": "STRING", "value": "/MT /O2 /Ob2 /DNDEBUG"},
@ -409,13 +216,11 @@
        "PERL_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/usr/bin/perl.exe"},
        "DOXYGEN_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/mingw64/bin/doxygen.exe"},
        "CLANG_FORMAT_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/mingw64/bin/clang-format.exe"},
-        "GO_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/mingw64/bin/go.exe"},
        "FFMPEG_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/mingw64/bin/ffmpeg.exe"},
        "REALPATH_BIN": {"type": "FILEPATH", "value": "$env{MSYS2_ROOT}/usr/bin/realpath.exe"},
        "FORCE_EXTERNAL_ICONV": {"type": "BOOL", "value": "ON"},
        "CPP_UNIT_LIB": {"type": "FILEPATH", "value": "$env{VCPKG_ROOT}/installed/x64-windows-static/lib/cppunit.lib"},
        "CPP_UNIT_INCLUDE_DIR": {"type": "PATH", "value": "$env{VCPKG_ROOT}/installed/x64-windows-static/include"},
-        "Vulkan_INCLUDE_DIR": {"type": "PATH", "value": ""},
        "QUICK_GUI": {"type": "BOOL", "value": "OFF"}
      }
    },
@ -446,33 +251,15 @@
  ],
  "buildPresets": [
    {"name": "default", "configurePreset": "default"},
-    {"name": "libc++", "configurePreset": "libc++"},
    {"name": "qt6", "configurePreset": "qt6"},
    {"name": "devel", "configurePreset": "devel"},
-    {"name": "devel-clang", "configurePreset": "devel-clang"},
-    {"name": "devel-libc++", "configurePreset": "devel-libc++"},
    {"name": "devel-qt6", "configurePreset": "devel-qt6"},
-    {"name": "devel-unity", "configurePreset": "devel-unity"},
-    {"name": "devel-clang-qt6", "configurePreset": "devel-clang-qt6"},
-    {"name": "devel-libc++-qt6", "configurePreset": "devel-libc++-qt6"},
    {"name": "debug", "configurePreset": "debug"},
-    {"name": "debug-qt6", "configurePreset": "debug-qt6"},
-    {"name": "debug-kde", "configurePreset": "debug-kde"},
-    {"name": "debug-kde-custom", "configurePreset": "debug-kde-custom"},
-    {"name": "arch-i686-w64-mingw32", "configurePreset": "arch-i686-w64-mingw32"},
    {"name": "arch-x86_64-w64-mingw32", "configurePreset": "arch-x86_64-w64-mingw32"},
-    {"name": "arch-i686-w64-mingw32-static", "configurePreset": "arch-i686-w64-mingw32-static"},
    {"name": "arch-x86_64-w64-mingw32-static", "configurePreset": "arch-x86_64-w64-mingw32-static"},
-    {"name": "arch-i686-w64-mingw32-qt6", "configurePreset": "arch-i686-w64-mingw32-qt6"},
    {"name": "arch-x86_64-w64-mingw32-qt6", "configurePreset": "arch-x86_64-w64-mingw32-qt6"},
-    {"name": "arch-i686-w64-mingw32-static-qt6", "configurePreset": "arch-i686-w64-mingw32-static-qt6"},
    {"name": "arch-x86_64-w64-mingw32-static-qt6", "configurePreset": "arch-x86_64-w64-mingw32-static-qt6"},
-    {"name": "arch-i686-w64-mingw32-devel", "configurePreset": "arch-i686-w64-mingw32-devel"},
    {"name": "arch-x86_64-w64-mingw32-devel", "configurePreset": "arch-x86_64-w64-mingw32-devel"},
-    {"name": "arch-i686-w64-mingw32-devel-qt6", "configurePreset": "arch-i686-w64-mingw32-devel-qt6"},
-    {"name": "arch-x86_64-w64-mingw32-devel-qt6", "configurePreset": "arch-x86_64-w64-mingw32-devel-qt6"},
-    {"name": "arch-i686-w64-mingw32-static-devel-qt6", "configurePreset": "arch-i686-w64-mingw32-static-devel-qt6"},
-    {"name": "arch-x86_64-w64-mingw32-static-devel-qt6", "configurePreset": "arch-x86_64-w64-mingw32-static-devel-qt6"},
    {"name": "arch-static-compat", "configurePreset": "arch-static-compat"},
    {"name": "arch-static-compat-devel", "configurePreset": "arch-static-compat-devel"},
    {"name": "win-x64-msvc-static", "configurePreset": "win-x64-msvc-static"},
--- a/README.md
+++ b/README.md
@ -61,11 +61,11 @@ These build instructions apply to `c++utilities` but also to my other projects u
 * C++ compiler supporting C++17, tested with
    - g++ to compile for GNU/Linux and Windows
    - clang++ to compile for GNU/Linux and Android
-* CMake (at least 3.17.0) and Ninja or GNU Make
+* CMake (at least 3.3.0) and Ninja or GNU Make
 * cppunit for unit tests (optional)
 * Doxygen for API documentation (optional)
 * Graphviz for diagrams in the API documentation (optional)
-* clang-format and cmake-format for tidying (optional)
+* clang-format for tidying (optional)
 * llvm-profdata, llvm-cov and cppunit for source-based code coverage analysis (optional)
 * [appstreamcli](https://www.freedesktop.org/wiki/Distributions/AppStream/) for validation
  of generated AppStream files (optional)
@ -76,20 +76,19 @@ These build instructions apply to `c++utilities` but also to my other projects u
        - libstdc++ under GNU/Linux and Windows
        - libc++ under GNU/Linux and Android
    * glibc with iconv support or standalone iconv library
-    * libstdc++ or Boost.Iostreams for `NativeFileStream` (optional, use `USE_NATIVE_FILE_BUFFER=OFF` to disable)
-    * Boost.Process for `execApp()` test helper under Windows (optional, use `USE_BOOST_PROCESS=OFF` to disable)
+    * libstdc++ or Boost.Iostreams for `NativeFileStream` (optional)
 * My other projects have further dependencies such as Qt. Checkout the README of these
  projects for further details.

 ### How to build
-Generic example using Ninja:
+Example using Ninja:
 ```
 cmake -G Ninja \
      -S "path/to/source/directory" \
      -B "path/to/build/directory" \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX="/final/install/location"
-# build the binaries
+make # build the binaries
 cmake --build "path/to/build/directory"
 # format source files (optional, must be enabled via CLANG_FORMAT_ENABLED)
 cmake --build "path/to/build/directory" --target tidy
@ -104,11 +103,10 @@ DESTDIR="/temporary/install/location" \
  cmake --install "path/to/build/directory"
 ```

-This example is rather generic. For a development build I recommended using CMakePresets as
-documented in the "CMake presets" section below. It also contains more concrete instructions for
-building on Windows.
-
 #### General notes
+* ```LIB_SUFFIX```, ```LIB_SUFFIX_32``` and ```LIB_SUFFIX_64``` can be set to specify a suffix
+  for the library directory, eg. lib*64* or lib*32*. The 32/64 variants are only used when building
+  for 32/64-bit architecture.
 * By default the build system will *build* static libs. To *build* shared libraries *instead*, set
  `BUILD_SHARED_LIBS=ON`.
 * By default the build system will prefer *linking against* shared libraries. To force *linking against*
@ -117,15 +115,14 @@ building on Windows.
 * If thread local storage is not supported by your compiler/platform (might be the case on MacOS), you can
  disable making use of it via `ENABLE_THREAD_LOCAL=OFF`.
 * To disable use of `std::filesystem`, set `USE_STANDARD_FILESYSTEM=OFF`. Note that the Bash completion will
-  not be able to suggest files and directories with `USE_STANDARD_FILESYSTEM=OFF`. Note that this will only
-  help with `c++utilities` itself. My other projects might use `std::filesystem` unconditionally.
+  not be able to suggest files and directories with `USE_STANDARD_FILESYSTEM=OFF`.
 * To disable `NativeFileStream` (and make it just a regular `std::fstream`), set `USE_NATIVE_FILE_BUFFER=OFF`.
  Note that handling paths with non-ASCII characters will then cease to work on Windows.
 * The Qt-based applications support bundeling icon themes by specifying e.g.
  `BUILTIN_ICON_THEMES=breeze;breeze-dark`.
    * This variable must be set when building the application (not when building any of the libraries).
    * The specified icon themes need to be installed in the usual location. Otherwise, use e.g.
-      `BUILTIN_ICON_THEMES_SEARCH_PATH=D:/programming/misc/breeze-icons/usr/share/icons` to specify the
+      `DBUILTIN_ICON_THEMES_SEARCH_PATH=D:/programming/misc/breeze-icons/usr/share/icons` to specify the
      search path.
 * For more detailed documentation, see the documentation about build variables (in
  [directory doc](https://github.com/Martchus/cpp-utilities/blob/master/doc/buildvariables.md) and
@ -158,9 +155,7 @@ tagparser and tageditor) as one big project.
 This can be easily achieved by using CMake's `add_subdirectory()` function. For project files see the repository
 [subdirs](https://github.com/Martchus/subdirs). For an example, see
 [build instructions for Syncthing Tray](https://github.com/Martchus/syncthingtray#building-this-straight) or
-[build instructions for Tag Editor](https://github.com/Martchus/tageditor#building-this-straight). The `subdirs`
-repository also contains the script `sync-all.sh` to clone all possibly relevant repositories and keep them
-up-to-date later on.
+[build instructions for Tag Editor](https://github.com/Martchus/tageditor#building-this-straight).

 For a debug build, use `-DCMAKE_BUILD_TYPE=Debug`. To tweak various settings (e.g. warnings) for development,
 use `-DENABLE_DEVEL_DEFAULTS=ON`.
@ -171,133 +166,46 @@ but also some specific to certain Arch Linux packaging found in the AUR and my P

 Use `cmake --list-presets` to list all presets. All `cmake` commands need to be executed within the source
 directory. Builds will be created within a sub-directory of the path specified via the environment variable
-`BUILD_DIR`.
+`BUILD_DIR`. Here is an example for creating a build with the `arch-static-compat-devel` preset and invoking
+tests:

-The most useful presets for development are likely `devel`, `devel-qt6` and `debug`. Note that the `devel`
-preset (and all presets inheriting from it) use `ccache` which therefore needs to be installed.
+```
+export BUILD_DIR=$HOME/builds                                   # set build directory via environment variable
+cmake --preset arch-static-compat-devel                         # configure build
+cmake --build --preset arch-static-compat-devel -- -v           # conduct build
+cmake --build --preset arch-static-compat-devel --target check  # run tests
+cmake --build --preset arch-static-compat-devel --target tidy   # apply formatting
+```

-Here is a simple example to build with the `devel-qt6` preset:
-```
-export BUILD_DIR=$HOME/builds                    # set build directory via environment variable
-cmake --preset devel-qt6                         # configure build
-cmake --build --preset devel-qt6 -- -v           # conduct build
-cmake --build --preset devel-qt6 --target check  # run tests
-cmake --build --preset devel-qt6 --target tidy   # apply formatting
-```
+This preset is quite special (see [PKGBUILDs](https://github.com/Martchus/PKGBUILDs#static-gnulinux-libraries)
+for details about it). The most useful presets for development are likely `devel`, `devel-qt6` and `debug`.

 Note that these presets are supposed to cover all of my projects (so some of them aren't really making a
 difference when just building `c++utilities` itself). To use presets in other projects, simply symlink the
-file `CMakePresets.json` into the source directory of those projects. This is also done by the "subdirs"
-projects mentioned in the previous section.
+file `CMakePresets.json` into the source directory of those projects which works with the "subdirs" projects
+mentioned in the previous section as well.

-After invoking the configuration via the command-line, you can also open the project in Qt Creator and import
-it as an existing build (instead of adding a new build configuration).
+Note that the `devel` preset (and all presets inheriting from it) use `ccache` which therefore needs to be
+installed.

-##### Remarks for building on Windows
-To create a development build on Windows, it is most straight forward to use the `devel-qt6` preset in a
-MSYS2 mingw64 shell. Set the `BUILD_DIR` environment variable to specify the directory to store build
-artefacts.
-
-Run the following commands to build one of my applications and its `c++utilities`/`qtutilities` dependencies
-in one go (in this example Syncthing Tray):
-```
-# install dependencies; you may strip down this list depending on the application and features to enable
-pacman -Syu git perl-YAML mingw-w64-x86_64-gcc mingw-w64-x86_64-ccache mingw-w64-x86_64-cmake mingw-w64-x86_64-boost mingw-w64-x86_64-cppunit mingw-w64-x86_64-qt6-base mingw-w64-x86_64-qt6-declarative mingw-w64-x86_64-qt6-tools mingw-w64-x86_64-qt6-svg mingw-w64-x86_64-clang-tools-extra mingw-w64-x86_64-doxygen mingw-w64-x86_64-ffmpeg mingw-w64-x86_64-go
-
-# clone repositories as mentioned under "Building this straight" in the application's README file
-cd /path/to/store/sources
-...
-git clone ...
-...
-
-# configure and invoke the build
-cd subdirs/syncthingtray
-cmake --preset devel-qt6
-cmake --build "$BUILD_DIR/syncthingtray/devel-qt6" devel-qt6 -- -v
-```
-
-Run the following commands to build libraries individually (in this example `tagparser`) and
-installing them in some directory (in this example `$BUILD_DIR/install`) for use in another
-project:
-```
-# install dependencies
-pacman -Syu git mingw-w64-x86_64-gcc mingw-w64-x86_64-ccache mingw-w64-x86_64-cmake mingw-w64-x86_64-boost mingw-w64-x86_64-cppunit
-
-# clone relevant repositories, e.g. here just tagparser and its dependency c++utilities
-cd /path/to/store/sources
-git config core.symlinks true
-git clone https://github.com/Martchus/cpp-utilities.git c++utilities
-git clone https://github.com/Martchus/tagparser.git
-
-# configure and invoke the build and installation of the projects individually
-cmake --preset devel-qt6 -S c++utilities -DCMAKE_INSTALL_PREFIX="$BUILD_DIR/install"
-cmake --build "$BUILD_DIR/c++utilities/devel-qt6" --target install -- -v
-ln -rs c++utilities/CMakePresets.json tagparser/CMakePresets.json
-cmake --preset devel-qt6 -S tagparser -DCMAKE_INSTALL_PREFIX="$BUILD_DIR/install"
-cmake --build "$BUILD_DIR/tagparser/devel-qt6" --target install -- -v
-```
-
-Note that:
-* Not all those dependencies are required by all my projects and some are just optional.
-    * The second example to just build `c++utilities` and `tagparser` already shows a stripped-down list
-      of dependencies.
-    * Especially `mingw-w64-x86_64-go` is only required when building Syncthing Tray with built-in
-      Syncthing-library enabled. To build in an MSYS2 shell one needs to invoke `export GOROOT=/mingw64/lib/go`
-      so Go can find its root.
-    * All Qt-related dependencies are generally only required for building with Qt GUI, e.g. Tag Editor
-      and Password Manager can be built without Qt GUI. The libraries `c++utilities` and `tagparser` don't
-      require Qt at all.
-* You can also easily install Qt Creator via MSYS2 using `pacman -S mingw-w64-x86_64-qt-creator`.
-* You must *not* use the presets containing `mingw-w64` in their name as those are only intended for cross-compilation
-  on Arch Linux.
-
-###### Building with MSVC
-To build with MSVC you can use the `win-x64-msvc-static` preset. This preset (and all presets inheriting from it) need
-various additional environment variables to be set and you need to install dependencies from various sources:
-* `MSYS2_ROOT`: for Perl (only used by `qtforkawesome` so far), `clang-format`, Doxygen, FFmpeg and Go (only
-  used by `libsyncthing`) provided via MSYS2 packages; install the following packages:
+The `win-x64-msvc-static` preset (and all presets inheriting from it) need various additional environment
+variables to be set:
+* `MSYS2_ROOT`: for Perl (only used by `qtforkawesome` so far), `clang-format`, Doxygen and FFmpeg provided
+  via MSYS2 packages; install the following packages:
  ```
-  pacman -Syu perl-YAML mingw-w64-x86_64-clang-tools-extra mingw-w64-x86_64-doxygen mingw-w64-x86_64-ffmpeg mingw-w64-x86_64-go
+  pacman -Syu perl mingw-w64-x86_64-clang-tools-extra mingw-w64-x86_64-doxygen mingw-w64-x86_64-ffmpeg
  ```
 * `MSVC_ROOT`: for compiler and stdlib usually installed as part of Visual Studio setup, e.g.
  `C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.34.31933`
 * `WIN_KITS_ROOT`: for Windows platform headers/libraries usually installed as part of Visual Studio setup,
  e.g. `C:/Program Files (x86)/Windows Kits/10`
-* `WIN_KITS_VERSION`: the relevant subdirectory within `WIN_KITS_ROOT`, usually a version number like `10.0.22621.0`
-* `QT_ROOT`: for Qt libraries provided by the official Qt installer, e.g. `D:/programming/qt/6.5.0/msvc2019_64`
-* `QT_TOOLS`:  for additional build tools provided by the official Qt installer, e.g. `D:/programming/qt/Tools`
+* `QT_ROOT`: for Qt libraries provided by official Qt installer, e.g. `D:/programming/qt/6.5.0/msvc2019_64`
+* `QT_TOOLS`:  for additional build tools provided by official Qt installer, e.g. `D:/programming/qt/Tools`
 * `VCPKG_ROOT`: directory of VCPKG checkout used for other dependencies; install the following packages:
  ```
  vcpkg install boost-system:x64-windows-static boost-iostreams:x64-windows-static boost-filesystem:x64-windows-static boost-hana:x64-windows-static boost-process:x64-windows-static boost-asio:x64-windows-static libiconv:x64-windows-static zlib:x64-windows-static openssl:x64-windows-static cppunit:x64-windows-static
  ```

-When building with MSVC, do *not* use any of the MSYS2 shells. The environment of those shells leads to
-build problems. You can however use CMake and Ninja from MSYS2's mingw-w64 packaging (instead of the CMake
-version from Qt's installer). Then you need to specify the Ninja executable manually so the CMake invocation
-would become something like this:
-```
-`& "$Env:MSYS2_ROOT\mingw64\bin\cmake.exe" --preset win-x64-msvc-static -DCMAKE_MAKE_PROGRAM="$Env:MSYS2_ROOT\mingw64\bin\ninja.exe" .
-```
-
-To run the resulting binaries, you'll need to make sure the Qt libraries are in the search path, e.g. using
-`$Env:PATH = "$Env:QT_ROOT\bin"`.
-
-Note that you don't need to install all Visual Studio has to offer. A customized installation with just
-C++ core features, MSVC x86/x64 build tools, Windows SDK and vpkg should be enough. In Qt's online installer
-you can also uncheck everything except the MSVC build of Qt itself.
-
-If the compilation of the resource file doesn't work you can use `-DWINDOWS_RC_FILE=OFF` to continue the
-build regardless.
-
-##### Remarks about special presets
-The presets starting with `arch-` are for use under Arch Linux. Do *not* use them unless you know what you
-are doing. When creating a normal build under Arch Linux it is recommended to still use e.g. `devel-qt6`.
-
-Use the presets starting with `arch-*-w64-mingw32` to cross-compile for Windows using `mingw-w64` packages.
-Use the presets starting with `arch-static-compat-devel` to create a self-contained executable that is also
-usable under older GNU/Linux distributions using `static-compat` packages (see
-[PKGBUILDs](https://github.com/Martchus/PKGBUILDs#static-gnulinux-libraries) for details about it).
-
 ### Packaging
 The mentioned repositories contain packages for `c++utilities` itself but also for my other projects.
 However, the README files of my other projects contain a more exhaustive list.
@ -321,6 +229,6 @@ Checkout [Case_Of's overlay](https://codeberg.org/Case_Of/gentoo-overlay)
 or [perfect7gentleman's overlay](https://gitlab.com/Perfect_Gentleman/PG_Overlay).

 ## Copyright notice and license
-Copyright © 2015-2024 Marius Kittler
+Copyright © 2015-2023 Marius Kittler

 All code is licensed under [GPL-2-or-later](LICENSE).
--- a/application/argumentparser.cpp
+++ b/application/argumentparser.cpp
@ -182,7 +182,7 @@ bool ArgumentReader::read(ArgumentVector &args)
    Argument *lastArgInLevel = nullptr;
    vector<const char *> *values = nullptr;

-    // iterate through all argument denotations; loop might exit earlier when a denotation is unknown
+    // iterate through all argument denotations; loop might exit earlier when an denotation is unknown
    while (argv != end) {
        // check whether there are still values to read
        if (values && ((lastArgInLevel->requiredValueCount() != Argument::varValueCount) || (lastArgInLevel->flags() & Argument::Flags::Greedy))
@ -361,9 +361,6 @@ bool ArgumentReader::read(ArgumentVector &args)
            ++parser.m_actualArgc;
            lastArg = lastArgInLevel = matchingArg;
            argDenotation = nullptr;
-            if ((values->size() < matchingArg->requiredValueCount()) && (matchingArg->flags() & Argument::Flags::Greedy)) {
-                continue;
-            }
            read(lastArg->m_subArgs);
            argDenotation = nullptr;
            continue;
@ -1323,25 +1320,6 @@ string ArgumentParser::findSuggestions(int argc, const char *const *argv, unsign
    return suggestionStr;
 }

-/*!
- * \brief Returns a copy of \a escaped with escaping characters removed.
- */
-static std::string unescape(std::string_view escaped)
-{
-    auto unescaped = std::string();
-    auto onEscaping = false;
-    unescaped.reserve(escaped.size());
-    for (const auto c : escaped) {
-        if (!onEscaping && c == '\\') {
-            onEscaping = true;
-        } else {
-            unescaped += c;
-            onEscaping = false;
-        }
-    }
-    return unescaped;
-}
-
 /*!
 * \brief Prints the bash completion for the specified arguments and the specified \a lastPath.
 * \remarks Arguments must have been parsed before with readSpecifiedArgs(). When calling this method, completionMode must
@ -1527,13 +1505,23 @@ void ArgumentParser::printBashCompletion(int argc, const char *const *argv, unsi
    }
    // -> completions for files and dirs
    // -> if there's already an "opening", determine the dir part and the file part
-    auto actualDir = std::string(), actualFile = std::string();
-    auto haveFileOrDirCompletions = false;
+    string actualDir, actualFile;
+    bool haveFileOrDirCompletions = false;
    if (argc && currentWordIndex == completionInfo.lastSpecifiedArgIndex && opening) {
-        // the "opening" might contain escaped characters which need to be unescaped first
-        const auto unescapedOpening = unescape(opening);
+        // the "opening" might contain escaped characters which need to be unescaped first (let's hope this covers all possible escapings)
+        string unescapedOpening(opening);
+        findAndReplace<string>(unescapedOpening, "\\ ", " ");
+        findAndReplace<string>(unescapedOpening, "\\,", ",");
+        findAndReplace<string>(unescapedOpening, "\\[", "[");
+        findAndReplace<string>(unescapedOpening, "\\]", "]");
+        findAndReplace<string>(unescapedOpening, "\\!", "!");
+        findAndReplace<string>(unescapedOpening, "\\#", "#");
+        findAndReplace<string>(unescapedOpening, "\\$", "$");
+        findAndReplace<string>(unescapedOpening, "\\'", "'");
+        findAndReplace<string>(unescapedOpening, "\\\"", "\"");
+        findAndReplace<string>(unescapedOpening, "\\\\", "\\");
        // determine the "directory" part
-        auto dir = directory(unescapedOpening);
+        string dir = directory(unescapedOpening);
        if (dir.empty()) {
            actualDir = ".";
        } else {
@ -1546,7 +1534,7 @@ void ArgumentParser::printBashCompletion(int argc, const char *const *argv, unsi
            actualDir = std::move(dir);
        }
        // determine the "file" part
-        auto file = fileName(unescapedOpening);
+        string file = fileName(unescapedOpening);
        if (file[0] == '\"' || file[0] == '\'') {
            file.erase(0, 1);
        }
@ -1799,7 +1787,7 @@ void ValueConversion::Helper::ArgumentValueConversionError::throwFailure(const s
    throw ParseError(argumentPath.empty()
            ? argsToString("Conversion of top-level value \"", valueToConvert, "\" to type \"", targetTypeName, "\" failed: ", errorMessage)
            : argsToString("Conversion of value \"", valueToConvert, "\" (for argument --", argumentPath.back()->name(), ") to type \"",
-                  targetTypeName, "\" failed: ", errorMessage));
+                targetTypeName, "\" failed: ", errorMessage));
 }

 /*!
@ -1810,7 +1798,7 @@ void ArgumentOccurrence::throwNumberOfValuesNotSufficient(unsigned long valuesTo
    throw ParseError(path.empty()
            ? argsToString("Expected ", valuesToConvert, " top-level values to be present but only ", values.size(), " have been specified.")
            : argsToString("Expected ", valuesToConvert, " values for argument --", path.back()->name(), " to be present but only ", values.size(),
-                  " have been specified."));
+                " have been specified."));
 }

 } // namespace CppUtilities
--- a/application/argumentparser.h
+++ b/application/argumentparser.h
@ -881,7 +881,7 @@ inline void Argument::setFlags(Argument::Flags flags, bool add)
 {
    m_flags = add ? (m_flags | flags)
                  : static_cast<Argument::Flags>(static_cast<std::underlying_type<Argument::Flags>::type>(m_flags)
-                        & ~static_cast<std::underlying_type<Argument::Flags>::type>(flags));
+                      & ~static_cast<std::underlying_type<Argument::Flags>::type>(flags));
 }

 /*!
--- a/application/commandlineutils.cpp
+++ b/application/commandlineutils.cpp
@ -10,7 +10,6 @@
 #ifdef PLATFORM_WINDOWS
 #include <cstring>
 #include <io.h>
-#include <tchar.h>
 #include <windows.h>
 #else
 #include <sys/ioctl.h>
@ -91,19 +90,6 @@ TerminalSize determineTerminalSize()
 }

 #ifdef PLATFORM_WINDOWS
-/*!
- * \brief Returns whether Mintty is used.
- */
-static bool isMintty()
-{
-    static const auto mintty = [] {
-        const char *const msyscon = std::getenv("MSYSCON");
-        const char *const termprog = std::getenv("TERM_PROGRAM");
-        return (msyscon && std::strstr(msyscon, "mintty")) || (termprog && std::strstr(termprog, "mintty"));
-    }();
-    return mintty;
-}
-
 /*!
 * \brief Enables virtual terminal processing (and thus processing of ANSI escape codes) of the console
 *        determined by the specified \a nStdHandle.
@ -133,11 +119,13 @@ bool handleVirtualTerminalProcessing()
    if (enableVirtualTerminalProcessing(STD_OUTPUT_HANDLE) && enableVirtualTerminalProcessing(STD_ERROR_HANDLE)) {
        return true;
    }
-    // disable use of ANSI escape codes otherwise if it makes sense
-    if (isMintty()) {
+    // disable use on ANSI escape codes otherwise if it makes sense
+    const char *const msyscon = std::getenv("MSYSCON");
+    if (msyscon && std::strstr(msyscon, "mintty")) {
        return false; // no need to disable escape codes if it is just mintty
    }
-    if (const char *const term = std::getenv("TERM"); term && std::strstr(term, "xterm")) {
+    const char *const term = std::getenv("TERM");
+    if (term && std::strstr(term, "xterm")) {
        return false; // no need to disable escape codes if it is some xterm-like terminal
    }
    return EscapeCodes::enabled = false;
@ -153,26 +141,20 @@ void stopConsole()
    fclose(stdin);
    fclose(stderr);
    if (auto *const consoleWindow = GetConsoleWindow()) {
+        PostMessage(consoleWindow, WM_KEYUP, VK_RETURN, 0);
        FreeConsole();
    }
 }

 /*!
- * \brief Ensure the process has a console attached and properly setup.
+ * \brief Ensure the process has a console attached and sets its output code page to UTF-8.
 * \remarks
- * - Only available (and required) under Windows where otherwise standard I/O is not possible via the console (unless
- *   when using Mintty).
- * - Attaching a console breaks redirections/pipes so this needs to be opted-in by setting the environment variable
- *   `ENABLE_CONSOLE=1`.
- * - Note that this is only useful to start a console from a GUI application. It is not necassary to call this function
- *   from a console application.
- * - The console is automatically closed when the application exits.
- * - This function alone does not provide good results. It still breaks redirections in PowerShell and other shells and
- *   after the application exists the command prompt is not displayed. A CLI-wrapper is required for proper behavior. The
- *   build system automatically generates one when the CMake variable BUILD_CLI_WRAPPER is set. Note that this CLI-wrapper
- *   still relies on this function (and thus sets `ENABLE_CONSOLE=1`). Without this standard I/O would still not be
- *   possible via the console. The part for skipping in case there's a redirection is still required. Otherwise
- *   redirections/pipes are broken when using the CLI-wrapper as well.
+ * - Only available (and required) under Windows where otherwise stdout/stderr is not printed to the console (at
+ *   least when using `cmd.exe`).
+ * - Used to start a console from a GUI application. Does *not* create a new console if the process already has one.
+ * - Closes the console automatically when the application exits.
+ * - It breaks redirecting stdout/stderr so this can be opted-out by setting the environment
+ *   variable `ENABLE_CONSOLE=0` and/or `ENABLE_CP_UTF8=0`.
 * \sa
 * - https://docs.microsoft.com/en-us/windows/console/AttachConsole
 * - https://docs.microsoft.com/en-us/windows/console/AllocConsole
@ -181,101 +163,42 @@ void stopConsole()
 */
 void startConsole()
 {
-    // skip if ENABLE_CONSOLE is set to 0 or not set at all
-    if (const auto e = isEnvVariableSet("ENABLE_CONSOLE"); !e.has_value() || !e.value()) {
-        return;
-    }
-
-    // check whether there's a redirection; skip messing with any streams then to not break redirections/pipes
-    auto pos = std::fpos_t();
-    std::fgetpos(stdout, &pos);
-    const auto skipstdout = pos >= 0;
-    std::fgetpos(stderr, &pos);
-    const auto skipstderr = pos >= 0;
-    std::fgetpos(stdin, &pos);
-    const auto skipstdin = pos >= 0;
-    const auto skip = skipstdout || skipstderr || skipstdin;
-
    // attach to the parent process' console or allocate a new console if that's not possible
-    if (!skip && (AttachConsole(ATTACH_PARENT_PROCESS) || AllocConsole())) {
-        FILE *fp;
-#ifdef _MSC_VER
-        // take care of normal streams
-        if (!skipstdout) {
-            freopen_s(&fp, "CONOUT$", "w", stdout);
-            std::cout.clear();
-            std::clog.clear();
-        }
-        if (!skipstderr) {
-            freopen_s(&fp, "CONOUT$", "w", stderr);
-            std::cerr.clear();
-        }
-        if (!skipstdin) {
-            freopen_s(&fp, "CONIN$", "r", stdin);
-            std::cin.clear();
-        }
-        // take care of wide streams
-        auto hConOut = CreateFile(
-            _T("CONOUT$"), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-        auto hConIn = CreateFile(
-            _T("CONIN$"), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-        if (!skipstdout) {
-            SetStdHandle(STD_OUTPUT_HANDLE, hConOut);
-            std::wcout.clear();
-            std::wclog.clear();
-        }
-        if (!skipstderr) {
-            SetStdHandle(STD_ERROR_HANDLE, hConOut);
-            std::wcerr.clear();
-        }
-        if (!skipstdin) {
-            SetStdHandle(STD_INPUT_HANDLE, hConIn);
-            std::wcin.clear();
-        }
-#else
+    const auto consoleEnabled = isEnvVariableSet("ENABLE_CONSOLE");
+    if ((!consoleEnabled.has_value() || consoleEnabled.value()) && (AttachConsole(ATTACH_PARENT_PROCESS) || AllocConsole())) {
        // redirect stdout
-        auto stdHandle = std::intptr_t();
-        auto conHandle = int();
-        if (!skipstdout) {
-            stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_OUTPUT_HANDLE));
-            conHandle = _open_osfhandle(stdHandle, _O_TEXT);
-            fp = _fdopen(conHandle, "w");
-            *stdout = *fp;
-            setvbuf(stdout, nullptr, _IONBF, 0);
-        }
+        auto stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_OUTPUT_HANDLE));
+        auto conHandle = _open_osfhandle(stdHandle, _O_TEXT);
+        auto fp = _fdopen(conHandle, "w");
+        *stdout = *fp;
+        setvbuf(stdout, nullptr, _IONBF, 0);
        // redirect stdin
-        if (!skipstdin) {
-            stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_INPUT_HANDLE));
-            conHandle = _open_osfhandle(stdHandle, _O_TEXT);
-            fp = _fdopen(conHandle, "r");
-            *stdin = *fp;
-            setvbuf(stdin, nullptr, _IONBF, 0);
-        }
+        stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_INPUT_HANDLE));
+        conHandle = _open_osfhandle(stdHandle, _O_TEXT);
+        fp = _fdopen(conHandle, "r");
+        *stdin = *fp;
+        setvbuf(stdin, nullptr, _IONBF, 0);
        // redirect stderr
-        if (!skipstderr) {
-            stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_ERROR_HANDLE));
-            conHandle = _open_osfhandle(stdHandle, _O_TEXT);
-            fp = _fdopen(conHandle, "w");
-            *stderr = *fp;
-            setvbuf(stderr, nullptr, _IONBF, 0);
-        }
+        stdHandle = reinterpret_cast<intptr_t>(GetStdHandle(STD_ERROR_HANDLE));
+        conHandle = _open_osfhandle(stdHandle, _O_TEXT);
+        fp = _fdopen(conHandle, "w");
+        *stderr = *fp;
+        setvbuf(stderr, nullptr, _IONBF, 0);
        // sync
        ios::sync_with_stdio(true);
-#endif
        // ensure the console prompt is shown again when app terminates
-        std::atexit(stopConsole);
+        atexit(stopConsole);
    }

    // set console character set to UTF-8
-    if (const auto e = isEnvVariableSet("ENABLE_CP_UTF8"); !e.has_value() || e.value()) {
+    const auto utf8Enabled = isEnvVariableSet("ENABLE_CP_UTF8");
+    if (!utf8Enabled.has_value() || utf8Enabled.value()) {
        SetConsoleCP(CP_UTF8);
        SetConsoleOutputCP(CP_UTF8);
    }

    // enable virtual terminal processing or disable ANSI-escape if that's not possible
-    if (const auto e = isEnvVariableSet("ENABLE_HANDLING_VIRTUAL_TERMINAL_PROCESSING"); !e.has_value() || e.value()) {
-        handleVirtualTerminalProcessing();
-    }
+    handleVirtualTerminalProcessing();
 }

 /*!
@ -307,7 +230,7 @@ pair<vector<unique_ptr<char[]>>, vector<char *>> convertArgsToUtf8()
        }

        res.second.emplace_back(argv.get());
-        res.first.emplace_back(std::move(argv));
+        res.first.emplace_back(move(argv));
    }

    LocalFree(argv_w);
--- a/application/fakeqtconfigarguments.cpp
+++ b/application/fakeqtconfigarguments.cpp
@ -14,7 +14,7 @@ namespace CppUtilities {
 */
 FakeQtConfigArguments::FakeQtConfigArguments()
    : m_qtWidgetsGuiArg(
-          "qt-widgets-gui", 'g', "shows a Qt widgets based graphical user interface (the application has not been built with Qt widgets support)")
+        "qt-widgets-gui", 'g', "shows a Qt widgets based graphical user interface (the application has not been built with Qt widgets support)")
    , m_qtQuickGuiArg(
          "qt-quick-gui", 'q', "shows a Qt quick based graphical user interface (the application has not been built with Qt quick support)")
 {
--- a/chrono/datetime.cpp
+++ b/chrono/datetime.cpp
@ -47,6 +47,8 @@ template <typename num1, typename num2, typename num3> constexpr bool inRangeExc
 *    the time zone deltas are "baked into" the DateTime instance. For instance, the expression (DateTime::now() - DateTime::gmtNow())
 *    returns one hour in Germany during winter time (and *not* zero although both instances represent the current time).
 * \todo
+ * - Add method for parsing custom string formats.
+ * - Add method for printing to custom string formats.
 * - Allow to determine the date part for each component at once to prevent multiple
 *   invocations of getDatePart().
 */
--- a/chrono/timespan.cpp
+++ b/chrono/timespan.cpp
@ -2,52 +2,17 @@

 #include "./timespan.h"

-#include "../conversion/stringbuilder.h"
 #include "../conversion/stringconversion.h"

-#include <array>
-#include <charconv>
 #include <cmath>
-#include <cstdlib>
 #include <iomanip>
 #include <sstream>
+#include <vector>

 using namespace std;

 namespace CppUtilities {

-/// \cond
-
-#if defined(__GLIBCXX__) && _GLIBCXX_RELEASE < 10
-enum class chars_format { scientific = 1, fixed = 2, hex = 4, general = fixed | scientific };
-#else
-using char_format = std::chars_format;
-#endif
-
-inline std::from_chars_result from_chars(const char *first, const char *last, double &value, chars_format fmt = chars_format::general) noexcept
-{
-#if defined(_LIBCPP_VERSION) || (defined(__GLIBCXX__) && _GLIBCXX_RELEASE < 11)
-    // workaround std::from_chars() not being implemented for floating point numbers in libc++ and older libstdc++ versions
-    CPP_UTILITIES_UNUSED(fmt)
-    auto r = std::from_chars_result{ nullptr, std::errc() };
-    auto s = std::string(first, last);
-    auto l = s.data() + s.size();
-    auto d = std::strtod(s.data(), &l);
-    if (errno == ERANGE) {
-        r.ec = std::errc::result_out_of_range;
-    } else if (s.data() == l) {
-        r.ec = std::errc::invalid_argument;
-    } else {
-        value = d;
-        r.ptr = first + (l - s.data());
-    }
-    return r;
-#else
-    return std::from_chars(first, last, value, fmt);
-#endif
-}
-/// \endcond
-
 /*!
 * \class TimeSpan
 * \brief Represents a time interval.
@ -57,19 +22,18 @@ inline std::from_chars_result from_chars(const char *first, const char *last, do
 * and month. For that use case, use the Period class instead.
 *
 * \remarks Time values are measured in 100-nanosecond units called ticks.
+ * \todo
+ * - Add method for parsing custom string formats.
+ * - Add method for printing to custom string formats.
 */

 /*!
 * \brief Parses the given C-style string as TimeSpan.
 * \throws Throws a ConversionException if the specified \a str does not match the expected format.
 *
- * The expected format is "days:hours:minutes:seconds", e.g. "5:31:4.521" for 5 hours, 31 minutes
+ * The expected format is "days:hours:minutes:seconds", eg. "5:31:4.521" for 5 hours, 31 minutes
 * and 4.521 seconds. So parts at the front can be omitted and the parts can be fractions. The
- * colon can be changed by specifying another \a separator. White-spaces before and after parts
- * are ignored.
- *
- * It is also possible to specify one or more values with a unit, e.g. "2w 1d 5h 1m 0.5s".
- * The units "w" (weeks), "d" (days), "h" (hours), "m" (minutes) and "s" (seconds) are supported.
+ * colon can be changed by specifying another \a separator.
 */
 TimeSpan TimeSpan::fromString(const char *str, char separator)
 {
@ -77,100 +41,34 @@ TimeSpan TimeSpan::fromString(const char *str, char separator)
        return TimeSpan();
    }

-    auto parts = std::array<double, 4>();
-    auto partsPresent = std::size_t();
-    auto specificationsWithUnits = TimeSpan();
+    vector<double> parts;
+    size_t partsSize = 1;
+    for (const char *i = str; *i; ++i) {
+        *i == separator && ++partsSize;
+    }
+    parts.reserve(partsSize);

-    for (const char *i = str;; ++i) {
-        // skip over white-spaces
-        if (*i == ' ' && i == str) {
-            str = i + 1;
-            continue;
-        }
-
-        // consider non-separator and non-terminator characters as part to be interpreted as number
-        if (*i != separator && *i != '\0') {
-            continue;
-        }
-
-        // allow only up to 4 parts (days, hours, minutes and seconds)
-        if (partsPresent == 4) {
-            throw ConversionException("too many separators/parts");
-        }
-
-        // parse value of the part
-        auto valuePart = 0.0;
-        auto valueWithUnit = TimeSpan();
-        if (str != i) {
-            // parse value of the part as double
-            const auto res = from_chars(str, i, valuePart);
-            if (res.ec != std::errc()) {
-                const auto part = std::string_view(str, static_cast<std::string_view::size_type>(i - str));
-                if (res.ec == std::errc::result_out_of_range) {
-                    throw ConversionException(argsToString("part \"", part, "\" is too large"));
-                } else {
-                    throw ConversionException(argsToString("part \"", part, "\" cannot be interpreted as floating point number"));
-                }
-            }
-            // handle remaining characters; detect a possibly present unit suffix
-            for (const char *suffix = res.ptr; suffix != i; ++suffix) {
-                if (*suffix == ' ') {
-                    continue;
-                }
-                if (valueWithUnit.isNull()) {
-                    switch (*suffix) {
-                    case 'w':
-                        valueWithUnit = TimeSpan::fromDays(7.0 * valuePart);
-                        continue;
-                    case 'd':
-                        valueWithUnit = TimeSpan::fromDays(valuePart);
-                        continue;
-                    case 'h':
-                        valueWithUnit = TimeSpan::fromHours(valuePart);
-                        continue;
-                    case 'm':
-                        valueWithUnit = TimeSpan::fromMinutes(valuePart);
-                        continue;
-                    case 's':
-                        valueWithUnit = TimeSpan::fromSeconds(valuePart);
-                        continue;
-                    default:;
-                    }
-                }
-                if (*suffix >= '0' && *suffix <= '9') {
-                    str = i = suffix;
-                    break;
-                }
-                throw ConversionException(argsToString("unexpected character \"", *suffix, '\"'));
-            }
-        }
-
-        // set part value; add value with unit
-        if (valueWithUnit.isNull()) {
-            parts[partsPresent++] = valuePart;
-        } else {
-            specificationsWithUnits += valueWithUnit;
-        }
-
-        // expect next part starting after the separator or stop if terminator reached
+    for (const char *i = str;;) {
        if (*i == separator) {
-            str = i + 1;
+            parts.emplace_back(stringToNumber<double>(string(str, i)));
+            str = ++i;
        } else if (*i == '\0') {
+            parts.emplace_back(stringToNumber<double>(string(str, i)));
            break;
+        } else {
+            ++i;
        }
    }

-    // compute and return total value from specifications with units and parts
-    switch (partsPresent) {
+    switch (parts.size()) {
    case 1:
-        return specificationsWithUnits + TimeSpan::fromSeconds(parts.front());
+        return TimeSpan::fromSeconds(parts.front());
    case 2:
-        return specificationsWithUnits + TimeSpan::fromMinutes(parts.front()) + TimeSpan::fromSeconds(parts[1]);
+        return TimeSpan::fromMinutes(parts.front()) + TimeSpan::fromSeconds(parts[1]);
    case 3:
-        return specificationsWithUnits + TimeSpan::fromHours(parts.front()) + TimeSpan::fromMinutes(parts[1]) + TimeSpan::fromSeconds(parts[2]);
+        return TimeSpan::fromHours(parts.front()) + TimeSpan::fromMinutes(parts[1]) + TimeSpan::fromSeconds(parts[2]);
    default:
-        return specificationsWithUnits + TimeSpan::fromDays(parts.front()) + TimeSpan::fromHours(parts[1]) + TimeSpan::fromMinutes(parts[2])
-            + TimeSpan::fromSeconds(parts[3]);
+        return TimeSpan::fromDays(parts.front()) + TimeSpan::fromHours(parts[1]) + TimeSpan::fromMinutes(parts[2]) + TimeSpan::fromSeconds(parts[3]);
    }
 }

--- a/cmake/modules/3rdParty.cmake
+++ b/cmake/modules/3rdParty.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED THIRD_PARTY_MODULE_LOADED)
@ -157,10 +157,6 @@ macro (_cpp_utilities_use_openssl OPENSSL_TARGETS)
        message(STATUS "Unable to find OpenSSL")
        return()
    endif ()
-    set(OPENSSL_IS_STATIC FALSE)
-    if (OPENSSL_CRYPTO_LIBRARY MATCHES ".*\\.a" OR OPENSSL_SSL_LIBRARY MATCHES ".*\\.a")
-        set(OPENSSL_IS_STATIC TRUE)
-    endif ()
    foreach (OPENSSL_TARGET ${OPENSSL_TARGETS})
        if (TARGET "${OPENSSL_TARGET}")
            continue()
@ -178,14 +174,9 @@ macro (_cpp_utilities_use_openssl OPENSSL_TARGETS)

    message(STATUS "Found required OpenSSL targets (${OPENSSL_TARGETS})")
    set("${ARGS_LIBRARIES_VARIABLE}" "${${ARGS_LIBRARIES_VARIABLE}};${OPENSSL_TARGETS}")
-
-    # add transitive dependencies for static OpenSSL libs as the CMake find module does not do a good job
-    if (OPENSSL_USE_STATIC_LIBS OR OPENSSL_IS_STATIC)
-        if (WIN32)
-            set("${ARGS_LIBRARIES_VARIABLE}" "${${ARGS_LIBRARIES_VARIABLE}};-lws2_32;-lgdi32;-lcrypt32")
-        elseif (LINUX)
-            set("${ARGS_LIBRARIES_VARIABLE}" "${${ARGS_LIBRARIES_VARIABLE}};-ldl")
-        endif ()
+    if (WIN32 AND OPENSSL_USE_STATIC_LIBS)
+        # FIXME: preferably use pkg-config to cover this case without hardcoding OpenSSL's dependencies under Windows
+        set("${ARGS_LIBRARIES_VARIABLE}" "${${ARGS_LIBRARIES_VARIABLE}};-lws2_32;-lgdi32;-lcrypt32")
    endif ()
    set("${ARGS_PACKAGES_VARIABLE}"
        "${${ARGS_PACKAGES_VARIABLE}};OpenSSL"
--- a/cmake/modules/AppTarget.cmake
+++ b/cmake/modules/AppTarget.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 if (NOT BASIC_PROJECT_CONFIG_DONE)
    message(FATAL_ERROR "Before including the AppTarget module, the BasicConfig module must be included.")
@ -111,17 +111,35 @@ if (GUI_TYPE STREQUAL "MACOSX_BUNDLE")
 endif ()

 # create CLI-wrapper to be able to use CLI in Windows-termial without hacks
+if (GUI_TYPE STREQUAL "WIN32")
+    option(BUILD_CLI_WRAPPER "whether to build a CLI wrapper" ON)
+endif ()
 if (BUILD_CLI_WRAPPER)
+    set(CLI_WRAPPER_TARGET_NAME "${META_TARGET_NAME}-cli")
+
+    # add Boost::boost target which represents include directory for header-only deps and add Boost::filesystem as it is
+    # needed by Boost.Process
+    set(BOOST_ARGS 1.75 REQUIRED COMPONENTS filesystem)
+    set(USE_PACKAGE_ARGS
+        LIBRARIES_VARIABLE CLI_WRAPPER_TARGET_NAME_LIBS
+        PACKAGES_VARIABLE CLI_WRAPPER_TARGET_NAME_PKGS)
+    use_package(TARGET_NAME Boost::boost PACKAGE_NAME Boost PACKAGE_ARGS "${BOOST_ARGS}" ${USE_PACKAGE_ARGS})
+    use_package(TARGET_NAME Boost::filesystem PACKAGE_NAME Boost PACKAGE_ARGS "${BOOST_ARGS}" ${USE_PACKAGE_ARGS})
+
    # find source file
    include(TemplateFinder)
    find_template_file_full_name("cli-wrapper.cpp" CPP_UTILITIES CLI_WRAPPER_SRC_FILE)

    # add and configure additional executable
-    set(CLI_WRAPPER_TARGET_NAME "${META_TARGET_NAME}-cli")
    add_executable(${CLI_WRAPPER_TARGET_NAME} ${CLI_WRAPPER_RES_FILES} ${CLI_WRAPPER_SRC_FILE})
-    set_target_properties(${CLI_WRAPPER_TARGET_NAME} PROPERTIES CXX_STANDARD 17)
-    target_link_libraries(${CLI_WRAPPER_TARGET_NAME} PRIVATE ${STATIC_LINKAGE_LINKER_FLAGS})
-    target_compile_definitions(${CLI_WRAPPER_TARGET_NAME} PRIVATE _CRT_SECURE_NO_WARNINGS=1)
+    target_link_libraries(${CLI_WRAPPER_TARGET_NAME} PRIVATE "${CLI_WRAPPER_TARGET_NAME_LIBS}")
+    if (MINGW)
+        # workaround https://github.com/boostorg/process/issues/96
+        target_compile_definitions(${CLI_WRAPPER_TARGET_NAME} PRIVATE BOOST_USE_WINDOWS_H WIN32_LEAN_AND_MEAN)
+    elseif (MSVC)
+        # prevent "Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately."
+        target_compile_definitions(${CLI_WRAPPER_TARGET_NAME} PRIVATE _WIN32_WINNT=0x0601)
+    endif ()
 endif ()

 # add install targets
--- a/cmake/modules/AppUtilities.cmake
+++ b/cmake/modules/AppUtilities.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED APPLICATION_UTILITIES_LOADED)
@ -21,9 +21,16 @@ function (add_custom_desktop_file)
    endif ()

    # parse arguments
-    set(ONE_VALUE_ARGS FILE_NAME DESKTOP_FILE_APP_NAME DESKTOP_FILE_GENERIC_NAME DESKTOP_FILE_DESCRIPTION DESKTOP_FILE_CMD
-                       DESKTOP_FILE_ICON)
-    set(MULTI_VALUE_ARGS DESKTOP_FILE_CATEGORIES DESKTOP_FILE_ADDITIONAL_ENTRIES)
+    set(ONE_VALUE_ARGS
+        FILE_NAME
+        DESKTOP_FILE_APP_NAME
+        DESKTOP_FILE_GENERIC_NAME
+        DESKTOP_FILE_DESCRIPTION
+        DESKTOP_FILE_CATEGORIES
+        DESKTOP_FILE_CMD
+        DESKTOP_FILE_ICON
+        DESKTOP_FILE_ADDITIONAL_ENTRIES)
+    set(MULTI_VALUE_ARGS)
    set(OPTIONAL_ARGS)
    cmake_parse_arguments(ARGS "${OPTIONAL_ARGS}" "${ONE_VALUE_ARGS}" "${MULTI_VALUE_ARGS}" ${ARGN})
    if (NOT ARGS_FILE_NAME
@ -63,7 +70,7 @@ function (add_appstream_file)
    endif ()

    # create appstream desktop file from template
-    set(APPSTREAM_FILE "${CMAKE_CURRENT_BINARY_DIR}/resources/${META_ID}.metainfo.xml")
+    set(APPSTREAM_FILE "${CMAKE_CURRENT_BINARY_DIR}/resources/${META_ID}.appdata.xml")
    configure_file("${APP_APPSTREAM_TEMPLATE_FILE}" "${APPSTREAM_FILE}" @ONLY)

    # add install for the appstream file
@ -73,19 +80,11 @@ function (add_appstream_file)
        COMPONENT appimage)

    # add test
-    set(APPSTREAM_TESTS_ENABLED_DEFAULT OFF)
    find_program(APPSTREAMCLI_BIN "appstreamcli")
-    if (ENABLE_DEVEL_DEFAULTS AND APPSTREAMCLI_BIN)
-        set(APPSTREAM_TESTS_ENABLED_DEFAULT ON)
-    endif ()
-    option(APPSTREAM_TESTS_ENABLED "enables tests for checking whether AppStream files" "${APPSTREAM_TESTS_ENABLED_DEFAULT}")
-    if (APPSTREAM_TESTS_ENABLED)
-        if (NOT APPSTREAMCLI_BIN)
-            message(FATAL_ERROR "Unable to validate appstreamcli files; appstreamcli not found")
-        else ()
-            add_test(NAME "${META_TARGET_NAME}_appstream_validation" COMMAND "${APPSTREAMCLI_BIN}" validate
-                                                                             "${APPSTREAM_FILE}")
-        endif ()
+    if (NOT APPSTREAMCLI_BIN)
+        message(STATUS "Could not find appstreamcli; won't add test/target to validate appstream files")
+    else ()
+        add_test(NAME "${META_TARGET_NAME}_appstream_validation" COMMAND "${APPSTREAMCLI_BIN}" validate "${APPSTREAM_FILE}")
    endif ()
 endfunction ()

@ -98,6 +97,7 @@ function (add_desktop_file)
    endif ()

    # compose actions
+    set(DESKTOP_FILE_ADDITIONAL_ENTRIES "")
    foreach (ACTION_VAR ${META_APP_ACTIONS})
        list(GET META_APP_ACTION_${ACTION_VAR} 0 ACTION_ID)
        list(GET META_APP_ACTION_${ACTION_VAR} 1 ACTION_NAME)
--- a/cmake/modules/BasicConfig.cmake
+++ b/cmake/modules/BasicConfig.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # check whether the required project meta-data has been set before including this module
 if (NOT META_PROJECT_NAME)
@ -191,39 +191,18 @@ if (NOT META_PROJECT_LICENSE)
    endif ()
 endif ()

-# determine RDNS automatically from other meta-data and allow override
-set(${META_PROJECT_VARNAME_UPPER}_RDNS_OVERRIDE
-    ""
-    CACHE STRING "overrides the RDNS used in AppStream meta-data files for ${META_PROJECT_NAME}")
-if (${META_PROJECT_VARNAME_UPPER}_RDNS_OVERRIDE)
-    set(META_PROJECT_RDNS ${${META_PROJECT_VARNAME_UPPER}_RDNS_OVERRIDE})
-endif ()
-set(${META_PROJECT_VARNAME_UPPER}_DEVELOPER_ID_OVERRIDE
-    ""
-    CACHE STRING "overrides the developer ID used in AppStream meta-data files for ${META_PROJECT_NAME}")
-if (${META_PROJECT_VARNAME_UPPER}_DEVELOPER_ID_OVERRIDE)
-    set(META_DEVELOPER_ID ${${META_PROJECT_VARNAME_UPPER}_DEVELOPER_ID_OVERRIDE})
-endif ()
-if (${META_PROJECT_VARNAME_UPPER}_RDNS_OVERRIDE OR ${META_PROJECT_VARNAME_UPPER}_DEVELOPER_ID_OVERRIDE)
-    message(
-        WARNING
-            "Overriding the RDNS or developer ID is NOT recommended. This feature is only intended to ease "
-            "transitioning when a change is required and to create alternative packaging for development and private use.")
-endif ()
-if (NOT META_PROJECT_RDNS OR NOT META_DEVELOPER_ID)
-    string(TOLOWER "${META_APP_AUTHOR}" META_APP_AUTHOR_LOWER)
+# determine RDNS automatically from other meta-data
+if (NOT META_PROJECT_RDNS)
    if (NOT META_PROJECT_RDNS_BASE)
-        if (META_APP_URL MATCHES ".*github\\.(com|io).*")
+        if (META_APP_URL MATCHES ".*github\\.com.*")
            set(META_PROJECT_RDNS_BASE "io.github") # assume GitHub pages
        else ()
            set(META_PROJECT_RDNS_BASE "org")
        endif ()
    endif ()
+    string(TOLOWER "${META_APP_AUTHOR}" META_APP_AUTHOR_LOWER)
    set(META_PROJECT_RDNS "${META_PROJECT_RDNS_BASE}.${META_APP_AUTHOR_LOWER}.${META_PROJECT_NAME}${TARGET_SUFFIX}")
 endif ()
-if (NOT META_DEVELOPER_ID)
-    set(META_DEVELOPER_ID "${META_PROJECT_RDNS_BASE}.${META_APP_AUTHOR_LOWER}")
-endif ()

 # provide variables for other projects built as part of the same subdirs project to access files from this project
 get_directory_property(HAS_PARENT PARENT_DIRECTORY)
@ -281,9 +260,9 @@ endif ()
 option(FORCE_OLD_ABI "specifies whether usage of libstdc++'s old ABI should be forced" OFF)
 if (FORCE_OLD_ABI)
    list(APPEND META_PRIVATE_COMPILE_DEFINITIONS _GLIBCXX_USE_CXX11_ABI=0)
-    message(STATUS "Forcing usage of old CXX11-ABI of libstdc++ (has no effect when a different standard library is used).")
+    message(STATUS "Forcing usage of old CXX11 ABI of libstdc++.")
 else ()
-    message(STATUS "Using default CXX11-ABI (not forcing old CXX11-ABI of libstdc++).")
+    message(STATUS "Using default CXX11 ABI  of libstdc++ (not forcing old CX11 ABI).")
 endif ()

 # enable debug-only code when doing a debug build
@ -414,24 +393,8 @@ endif ()

 # allow user to configure creation of tidy targets unless the project disables this via META_NO_TIDY
 if (NOT META_NO_TIDY)
-    find_program(CLANG_FORMAT_BIN clang-format)
-    find_program(CMAKE_FORMAT_BIN cmake-format)
-    set(CLANG_FORMAT_ENABLED_DEFAULT OFF)
-    set(CMAKE_FORMAT_ENABLED_DEFAULT OFF)
-    if (CLANG_FORMAT_BIN)
-        set(CLANG_FORMAT_ENABLED_DEFAULT ON)
-    endif ()
-    if (CMAKE_FORMAT_BIN)
-        set(CMAKE_FORMAT_ENABLED_DEFAULT ON)
-    endif ()
-    set(TIDY_TESTS_ENABLED_DEFAULT OFF)
-    if (ENABLE_DEVEL_DEFAULTS AND CLANG_FORMAT_ENABLED_DEFAULT)
-        set(TIDY_TESTS_ENABLED_DEFAULT ON)
-    endif ()
-    option(CLANG_FORMAT_ENABLED "enables creation of tidy target using clang-format" "${CLANG_FORMAT_ENABLED_DEFAULT}")
-    option(CMAKE_FORMAT_ENABLED "enables creation of tidy target using cmake-format" "${CMAKE_FORMAT_ENABLED_DEFAULT}")
-    option(TIDY_TESTS_ENABLED "enables tests for checking whether code is well-formatted using clang-format"
-           "${TIDY_TESTS_ENABLED_DEFAULT}")
+    option(CLANG_FORMAT_ENABLED "enables creation of tidy target using clang-format" "${ENABLE_DEVEL_DEFAULTS}")
+    option(CMAKE_FORMAT_ENABLED "enables creation of tidy target using cmake-format" "${ENABLE_DEVEL_DEFAULTS}")
 endif ()

 # add target for tidying with clang-format
@ -439,6 +402,7 @@ if (NOT META_NO_TIDY
    AND CLANG_FORMAT_ENABLED
    AND FORMATABLE_FILES
    AND EXISTS "${CLANG_FORMAT_RULES}")
+    find_program(CLANG_FORMAT_BIN clang-format)
    if (NOT CLANG_FORMAT_BIN)
        message(FATAL_ERROR "Unable to add tidy target; clang-format not found")
    endif ()
@ -454,22 +418,21 @@ if (NOT META_NO_TIDY
    add_dependencies(tidy "${META_TARGET_NAME}_tidy")

    # also add a test to verify whether sources are tidy
-    if (TIDY_TESTS_ENABLED)
-        add_test(
-            NAME "${META_TARGET_NAME}_tidy_test"
-            COMMAND "${CLANG_FORMAT_BIN}" -output-replacements-xml -style=file ${FORMATABLE_FILES}
-            WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
-        list(APPEND CHECK_TARGET_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/.clang-format")
-        set_tests_properties(
-            "${META_TARGET_NAME}_tidy_test" PROPERTIES FAIL_REGULAR_EXPRESSION "<replacement.*>.*</replacement>"
-                                                       REQUIRED_FILES "${CMAKE_CURRENT_SOURCE_DIR}/.clang-format")
-    endif ()
+    add_test(
+        NAME "${META_TARGET_NAME}_tidy_test"
+        COMMAND "${CLANG_FORMAT_BIN}" -output-replacements-xml -style=file ${FORMATABLE_FILES}
+        WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
+    list(APPEND CHECK_TARGET_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/.clang-format")
+    set_tests_properties(
+        "${META_TARGET_NAME}_tidy_test" PROPERTIES FAIL_REGULAR_EXPRESSION "<replacement.*>.*</replacement>" REQUIRED_FILES
+                                                   "${CMAKE_CURRENT_SOURCE_DIR}/.clang-format")
 endif ()

 # add target for tidying with cmake-format
 if (NOT META_NO_TIDY
    AND CMAKE_FORMAT_ENABLED
    AND FORMATABLE_FILES_CMAKE)
+    find_program(CMAKE_FORMAT_BIN cmake-format)
    if (NOT CMAKE_FORMAT_BIN)
        message(FATAL_ERROR "Unable to add tidy target; cmake-format not found")
    endif ()
@ -634,7 +597,7 @@ if (NOT META_NO_INSTALL_TARGETS AND ENABLE_INSTALL_TARGETS)
 endif ()

 # determine library directory suffix - Applications might be built as libraries under some platforms (eg. Android). Hence
-# this is part of BasicConfig and not LibraryTarget.
+# this is part of BasicConfig and not LibraryConfig.
 set(LIB_SUFFIX
    ""
    CACHE STRING "specifies the general suffix for the library directory")
@ -727,10 +690,6 @@ else ()
    endforeach ()
 endif ()

-# configure warnings
 configure_development_warnings(APPEND_OUTPUT_VAR META_PRIVATE_COMPILE_OPTIONS)
-if (MSVC)
-    list(APPEND META_PRIVATE_COMPILE_DEFINITIONS _CRT_SECURE_NO_WARNINGS=1)
-endif ()

 set(BASIC_PROJECT_CONFIG_DONE YES)
--- a/cmake/modules/ConfigHeader.cmake
+++ b/cmake/modules/ConfigHeader.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # before including this module, all relevant variables must be set just include this module as last one since nothing should
 # depend on it
--- a/cmake/modules/DevelUtilities.cmake
+++ b/cmake/modules/DevelUtilities.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED DEVEL_UTILITIES_LOADED)
@ -59,7 +59,7 @@ function (configure_development_warnings)
    option(TREAT_WARNINGS_AS_ERRORS "adds additional compiler flag to treat warnings as errors" "${ENABLE_DEVEL_DEFAULTS}")
    if (TREAT_WARNINGS_AS_ERRORS)
        if (CMAKE_CXX_COMPILER_ID MATCHES ".*Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-            list(APPEND COMPILE_OPTIONS_TO_CONFIGURE -Werror -Wno-error=address)
+            list(APPEND COMPILE_OPTIONS_TO_CONFIGURE -Werror)
        else ()
            message(AUTHOR_WARNING "Treating warnings as errors is not supported for compiler '${CMAKE_CXX_COMPILER_ID}'.")
        endif ()
--- a/cmake/modules/Doxygen.cmake
+++ b/cmake/modules/Doxygen.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 if (NOT BASIC_PROJECT_CONFIG_DONE)
    message(FATAL_ERROR "Before including the Doxygen module, the BasicConfig module must be included.")
--- a/cmake/modules/LibraryTarget.cmake
+++ b/cmake/modules/LibraryTarget.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 if (NOT BASIC_PROJECT_CONFIG_DONE)
    message(FATAL_ERROR "Before including the LibraryTarget module, the BasicConfig module must be included.")
@ -53,7 +53,7 @@ endif ()
 # add global library-specific header
 find_template_file("global.h" CPP_UTILITIES GLOBAL_H_TEMPLATE_FILE)
 if ("${META_PROJECT_NAME}" STREQUAL "c++utilities")
-    set(GENERAL_GLOBAL_H_INCLUDE_PATH "\"application/global.h\"")
+    set(GENERAL_GLOBAL_H_INCLUDE_PATH "\"./application/global.h\"")
 else ()
    set(GENERAL_GLOBAL_H_INCLUDE_PATH "<c++utilities/application/global.h>")
 endif ()
@ -121,37 +121,14 @@ endif ()
 # add custom libraries
 append_user_defined_additional_libraries()

-# allow writing public compile definitions to a header file instead of just relying on CMake/pkg-config
-option(USE_HEADER_FOR_PUBLIC_COMPILE_DEFINITIONS "writes public compile definitions to a header file" ON)
-set(DEFS_FOR_HEADER "")
-if (USE_HEADER_FOR_PUBLIC_COMPILE_DEFINITIONS)
-    foreach (DEF ${META_PUBLIC_COMPILE_DEFINITIONS})
-        if (DEF MATCHES "([A-Za-z0-9_]+)=([A-Za-z0-9_ ]+)")
-            set(DEF_NAME "${CMAKE_MATCH_1}")
-            set(DEF_VALUE " ${CMAKE_MATCH_2}")
-        elseif (DEF MATCHES "([A-Za-z0-9_]+)")
-            set(DEF_NAME "${CMAKE_MATCH_1}")
-            set(DEF_VALUE "")
-        endif ()
-        if (DEF_NAME)
-            set(DEFS_FOR_HEADER "${DEFS_FOR_HEADER}#ifndef ${DEF_NAME}\n#define ${DEF_NAME}${DEF_VALUE}\n#endif\n")
-        endif ()
-    endforeach ()
-endif ()
-set(TARGET_GENERATED_INCLUDE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/include")
-set(TARGET_DEFINITIONS_HEADER "${TARGET_GENERATED_INCLUDE_DIRECTORY}/${META_PROJECT_NAME}-definitions.h")
-file(WRITE "${TARGET_DEFINITIONS_HEADER}" "${DEFS_FOR_HEADER}")
-
 # add library to be created, set libs to link against, set version and C++ standard
 if (META_HEADER_ONLY_LIB)
    add_library(${META_TARGET_NAME} INTERFACE)
    target_link_libraries(${META_TARGET_NAME} INTERFACE ${META_ADDITIONAL_LINK_FLAGS} "${PUBLIC_LIBRARIES}"
                                                        "${PRIVATE_LIBRARIES}")
    target_include_directories(
-        ${META_TARGET_NAME}
-        INTERFACE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
-                  $<BUILD_INTERFACE:${TARGET_GENERATED_INCLUDE_DIRECTORY}>
-                  $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}> ${PUBLIC_INCLUDE_DIRS})
+        ${META_TARGET_NAME} INTERFACE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
+                                      $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}> ${PUBLIC_INCLUDE_DIRS})
    target_compile_definitions(${META_TARGET_NAME} INTERFACE "${META_PUBLIC_COMPILE_DEFINITIONS}"
                                                             "${META_PRIVATE_COMPILE_DEFINITIONS}")
    target_compile_options(${META_TARGET_NAME} INTERFACE "${META_PUBLIC_COMPILE_OPTIONS}" "${META_PRIVATE_COMPILE_OPTIONS}")
@ -162,14 +139,12 @@ else ()
        PUBLIC ${META_ADDITIONAL_LINK_FLAGS} "${PUBLIC_LIBRARIES}"
        PRIVATE "${PRIVATE_LIBRARIES}")
    if (META_IS_PLUGIN)
-        target_include_directories(
-            ${META_TARGET_NAME} PRIVATE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
-                                        $<BUILD_INTERFACE:${TARGET_GENERATED_INCLUDE_DIRECTORY}> "${PRIVATE_INCLUDE_DIRS}")
+        target_include_directories(${META_TARGET_NAME} PRIVATE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
+                                                               "${PRIVATE_INCLUDE_DIRS}")
    else ()
        target_include_directories(
            ${META_TARGET_NAME}
            PUBLIC $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
-                   $<BUILD_INTERFACE:${TARGET_GENERATED_INCLUDE_DIRECTORY}>
                   $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}> ${PUBLIC_INCLUDE_DIRS}
            PRIVATE "${PRIVATE_INCLUDE_DIRS}")
    endif ()
@ -220,10 +195,8 @@ else ()
    if (NOT META_PLUGIN_CATEGORY)
        add_library(${META_TARGET_NAME}-headers INTERFACE)
        target_include_directories(
-            ${META_TARGET_NAME}-headers
-            INTERFACE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
-                      $<BUILD_INTERFACE:${TARGET_GENERATED_INCLUDE_DIRECTORY}>
-                      $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}> ${PUBLIC_INCLUDE_DIRS})
+            ${META_TARGET_NAME}-headers INTERFACE $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
+                                                  $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}> ${PUBLIC_INCLUDE_DIRS})
        target_compile_definitions(${META_TARGET_NAME}-headers INTERFACE "${META_PUBLIC_COMPILE_DEFINITIONS}"
                                                                         "${META_PRIVATE_COMPILE_DEFINITIONS}")
        target_compile_options(${META_TARGET_NAME}-headers INTERFACE "${META_PUBLIC_COMPILE_OPTIONS}"
@ -557,12 +530,9 @@ if (NOT META_NO_INSTALL_TARGETS AND ENABLE_INSTALL_TARGETS)
        COMPONENT cmake-config)

    # allow checking for the export in subsequent sibling projects/directories
-    get_directory_property(HAS_PARENT_DIRECTORY PARENT_DIRECTORY)
-    if (HAS_PARENT_DIRECTORY)
-        set("EXPORT_${NAMESPACE_PREFIX}${META_PROJECT_NAME}${META_CONFIG_SUFFIX}"
-            ON
-            PARENT_SCOPE)
-    endif ()
+    set("EXPORT_${NAMESPACE_PREFIX}${META_PROJECT_NAME}${META_CONFIG_SUFFIX}"
+        ON
+        PARENT_SCOPE)

    # add install target for header files
    if (NOT META_IS_PLUGIN)
@ -584,10 +554,6 @@ if (NOT META_NO_INSTALL_TARGETS AND ENABLE_INSTALL_TARGETS)
            FILES "${VERSION_HEADER_FILE}"
            DESTINATION "${INCLUDE_SUBDIR}/${META_PROJECT_NAME}"
            COMPONENT header)
-        install(
-            FILES "${TARGET_DEFINITIONS_HEADER}"
-            DESTINATION "${INCLUDE_SUBDIR}/${META_PROJECT_NAME}"
-            COMPONENT header)
        if (NOT TARGET install-header)
            add_custom_target(install-header COMMAND "${CMAKE_COMMAND}" -DCMAKE_INSTALL_COMPONENT=header -P
                                                     "${CMAKE_BINARY_DIR}/cmake_install.cmake")
--- a/cmake/modules/ListToString.cmake
+++ b/cmake/modules/ListToString.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED LIST_TO_STRING_LOADED)
--- a/cmake/modules/ShellCompletion.cmake
+++ b/cmake/modules/ShellCompletion.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 if (NOT BASIC_PROJECT_CONFIG_DONE)
    message(FATAL_ERROR "Before including the ShellCompletion module, the BasicConfig module must be included.")
--- a/cmake/modules/TemplateFinder.cmake
+++ b/cmake/modules/TemplateFinder.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED TEMPLATE_FINDER_LOADED)
@ -8,9 +8,7 @@ set(TEMPLATE_FINDER_LOADED YES)

 function (find_template_file FILE_NAME_WITHOUT_EXTENSION PROJECT_VAR_NAME OUTPUT_VAR)
    find_template_file_full_name("${FILE_NAME_WITHOUT_EXTENSION}.in" "${PROJECT_VAR_NAME}" "${OUTPUT_VAR}")
-    set(${OUTPUT_VAR}
-        "${${OUTPUT_VAR}}"
-        PARENT_SCOPE)
+    set(${OUTPUT_VAR} "${${OUTPUT_VAR}}" PARENT_SCOPE)
 endfunction ()

 function (find_template_file_full_name FILE_NAME PROJECT_VAR_NAME OUTPUT_VAR)
--- a/cmake/modules/TestTarget.cmake
+++ b/cmake/modules/TestTarget.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 if (NOT BASIC_PROJECT_CONFIG_DONE)
    message(FATAL_ERROR "Before including the TestTarget module, the BasicConfig module must be included.")
@ -8,78 +8,76 @@ if (TEST_CONFIG_DONE)
 endif ()

 include(TestUtilities)
-if (NOT BUILD_TESTING)
-    return()
-endif ()

-# find and link against CppUnit if required (used by all my projects, so it is required by default)
+# find and link against cppunit if required (used by all my projects, so it is required by default)
 if (NOT META_NO_CPP_UNIT)
-    # allow disabling CppUnit-based tests completely
-    option(ENABLE_CPP_UNIT "whether CppUnit-based tests should be enabled" ON)
-    if (NOT ENABLE_CPP_UNIT)
-        set(META_HAVE_TESTS NO)
-        set(TEST_CONFIG_DONE YES)
-        return()
-    endif ()
-
-    # make CppUnit library/include dir configurable
+    # make cppunit library/include dir configurable
    set(CPP_UNIT_LIB
        NOTFOUND
-        CACHE FILEPATH "CppUnit lib")
+        CACHE FILEPATH "cppunit lib")
    set(CPP_UNIT_INCLUDE_DIR
        NOTFOUND
-        CACHE FILEPATH "CppUnit include dir")
-    if (CPP_UNIT_LIB)
-        set(DETECTED_CPP_UNIT_LIB "${CPP_UNIT_LIB}")
-    endif ()
+        CACHE FILEPATH "cppunit include dir")

    # set default for minimum version (only checked when using pkg-config)
    if (NOT META_REQUIRED_CPP_UNIT_VERSION)
        set(META_REQUIRED_CPP_UNIT_VERSION 1.13.0)
    endif ()

-    # find CppUnit via pkg-config first
-    if (NOT DETECTED_CPP_UNIT_LIB)
+    # auto-detection: try to find via pkg-config first
+    if (NOT CPP_UNIT_LIB AND NOT CPP_UNIT_INCLUDE_DIR)
        include(FindPkgConfig)
-        pkg_search_module(CppUnit IMPORTED_TARGET cppunit>=${META_REQUIRED_CPP_UNIT_VERSION})
-        if (CppUnit_FOUND)
-            set(DETECTED_CPP_UNIT_LIB "PkgConfig::CppUnit")
+        pkg_search_module(CPP_UNIT_CONFIG_${META_PROJECT_NAME} cppunit>=${META_REQUIRED_CPP_UNIT_VERSION})
+        if (CPP_UNIT_CONFIG_${META_PROJECT_NAME}_FOUND)
+            set(CPP_UNIT_LIB
+                "${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LDFLAGS_OTHER}" "${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LIBRARIES}"
+                CACHE FILEPATH "CppUnit library" FORCE)
+            set(CPP_UNIT_INCLUDE_DIR
+                ${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_INCLUDE_DIRS}
+                CACHE FILEPATH "CppUnit include dir" FORCE)
+            link_directories(${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LIBRARY_DIRS})
        endif ()
    endif ()

    # fall back to find_package (as vcpkg provides one)
-    if (NOT DETECTED_CPP_UNIT_LIB)
+    if (NOT CPP_UNIT_LIB AND NOT CPP_UNIT_INCLUDE_DIR)
        find_package(CppUnit CONFIG)
        if (TARGET CppUnit)
-            set(DETECTED_CPP_UNIT_LIB CppUnit)
+            set(CPP_UNIT_LIB
+                CppUnit
+                CACHE STRING "CppUnit target" FORCE)
        endif ()
    endif ()

    # fall back to find_library
-    if (NOT DETECTED_CPP_UNIT_LIB)
-        find_library(DETECTED_CPP_UNIT_LIB cppunit NO_CACHE)
-        if (DETECTED_CPP_UNIT_LIB)
-            message(
-                WARNING
-                    "CppUnit has only been detected via find_library() so the version could not be checked and include paths are maybe missing. The required version for ${META_PROJECT_NAME} is ${META_REQUIRED_CPP_UNIT_VERSION}."
-            )
-        endif ()
+    if (NOT CPP_UNIT_LIB AND NOT CPP_UNIT_INCLUDE_DIR)
+        find_library(DETECTED_CPP_UNIT_LIB cppunit)
+        set(CPP_UNIT_LIB
+            "${DETECTED_CPP_UNIT_LIB}"
+            CACHE FILEPATH "CppUnit library" FORCE)
    endif ()

-    if (NOT DETECTED_CPP_UNIT_LIB)
-        message(WARNING "Unable to add test target because CppUnit could not be located.")
+    if (NOT CPP_UNIT_LIB)
+        message(WARNING "Unable to add test target because cppunit could not be located.")
        set(META_HAVE_TESTS NO)
        set(TEST_CONFIG_DONE YES)
        return()
    endif ()

-    list(APPEND TEST_LIBRARIES "${DETECTED_CPP_UNIT_LIB}")
+    list(APPEND TEST_LIBRARIES "${CPP_UNIT_LIB}")
+    if (NOT CPP_UNIT_CONFIG_${META_PROJECT_NAME}_FOUND)
+        message(
+            WARNING
+                "Cppunit not detected via pkg-config so the version couldn't be checked. Required version for ${META_PROJECT_NAME} is ${META_REQUIRED_CPP_UNIT_VERSION}."
+        )
+    endif ()
+
    if (CPP_UNIT_INCLUDE_DIR)
        list(APPEND TEST_INCLUDE_DIRS "${CPP_UNIT_INCLUDE_DIR}")
    endif ()
 endif ()

-# add default CppUnit test application if requested
+# add default cppunit test application if requested
 if (META_ADD_DEFAULT_CPP_UNIT_TEST_APPLICATION)
    if (META_NO_CPP_UNIT)
        message(
--- a/cmake/modules/TestUtilities.cmake
+++ b/cmake/modules/TestUtilities.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # prevent multiple inclusion
 if (DEFINED TESTING_UTILITIES_LOADED)
@ -6,9 +6,6 @@ if (DEFINED TESTING_UTILITIES_LOADED)
 endif ()
 set(TESTING_UTILITIES_LOADED YES)

-# ensure CTest is loaded (e.g. for BUILD_TESTING variable)
-include(CTest)
-
 set(EXCLUDE_TEST_TARGET_BY_DEFAULT ON)
 if (ENABLE_DEVEL_DEFAULTS)
    set(EXCLUDE_TEST_TARGET_BY_DEFAULT OFF)
@ -52,10 +49,9 @@ function (configure_test_target)
        PRIVATE "${ARGS_LIBRARIES}" "${PRIVATE_LIBRARIES}")
    target_include_directories(
        "${TEST_TARGET_NAME}"
-        PUBLIC $<BUILD_INTERFACE:${TARGET_INCLUDE_DIRECTORY_BUILD_INTERFACE}>
-               $<BUILD_INTERFACE:${TARGET_GENERATED_INCLUDE_DIRECTORY}> $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}>
+        PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}>
               ${PUBLIC_INCLUDE_DIRS}
-        PRIVATE ${TEST_INCLUDE_DIRS} ${PRIVATE_INCLUDE_DIRS})
+        PRIVATE ${TEST_INCLUDE_DIRS} "${PRIVATE_INCLUDE_DIRS}")
    target_compile_definitions(
        "${TEST_TARGET_NAME}"
        PUBLIC "${META_PUBLIC_COMPILE_DEFINITIONS}"
--- a/cmake/modules/WindowsResources.cmake
+++ b/cmake/modules/WindowsResources.cmake
@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

 # generates and adds a Windows rc file for the application/library also attaches the application icon if ffmpeg is available
 # does nothing if not building with mingw-w64
@ -12,7 +12,7 @@ endif ()
 option(WINDOWS_RESOURCES_ENABLED "controls whether Windows resources are enabled" ON)
 option(WINDOWS_ICON_ENABLED "controls whether Windows icon is enabled" ON)

-if (NOT WIN32 OR NOT WINDOWS_RESOURCES_ENABLED)
+if (NOT MINGW OR NOT WINDOWS_RESOURCES_ENABLED)
    return()
 endif ()

@ -52,25 +52,17 @@ file(
    GENERATE
    OUTPUT "${WINDOWS_RC_FILE}-$<CONFIG>.rc"
    INPUT "${WINDOWS_RC_FILE}-configured.rc")
-if (BUILD_CLI_WRAPPER AND META_PROJECT_TYPE STREQUAL "application")
-    configure_file("${RC_CLI_TEMPLATE_FILE}" "${WINDOWS_CLI_RC_FILE}-configured.rc")
-    file(
-        GENERATE
-        OUTPUT "${WINDOWS_CLI_RC_FILE}-$<CONFIG>.rc"
-        INPUT "${WINDOWS_CLI_RC_FILE}-configured.rc")
-endif ()
+configure_file("${RC_CLI_TEMPLATE_FILE}" "${WINDOWS_CLI_RC_FILE}-configured.rc")
+file(
+    GENERATE
+    OUTPUT "${WINDOWS_CLI_RC_FILE}-$<CONFIG>.rc"
+    INPUT "${WINDOWS_CLI_RC_FILE}-configured.rc")

-# add resource file to sources
+# set windres as resource compiler
 list(APPEND RES_FILES "${WINDOWS_RC_FILE}-${CMAKE_BUILD_TYPE}.rc")
+list(APPEND CLI_WRAPPER_RES_FILES "${WINDOWS_CLI_RC_FILE}-${CMAKE_BUILD_TYPE}.rc")
 set_property(SOURCE "${WINDOWS_RC_FILE}-${CMAKE_BUILD_TYPE}.rc" PROPERTY GENERATED ON)
-if (BUILD_CLI_WRAPPER AND META_PROJECT_TYPE STREQUAL "application")
-    list(APPEND CLI_WRAPPER_RES_FILES "${WINDOWS_CLI_RC_FILE}-${CMAKE_BUILD_TYPE}.rc")
-    set_property(SOURCE "${WINDOWS_CLI_RC_FILE}-${CMAKE_BUILD_TYPE}.rc" PROPERTY GENERATED ON)
-endif ()
-
-# configure resource compiler; use windres when compiling with mingw-w64
-if (MINGW)
-    set(CMAKE_RC_COMPILER_INIT windres)
-    set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> <FLAGS> -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")
-endif ()
+set_property(SOURCE "${WINDOWS_CLI_RC_FILE}-${CMAKE_BUILD_TYPE}.rc" PROPERTY GENERATED ON)
+set(CMAKE_RC_COMPILER_INIT windres)
+set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> <FLAGS> -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")
 enable_language(RC)
--- a/cmake/templates/appdata.xml.in
+++ b/cmake/templates/appdata.xml.in
@ -9,7 +9,7 @@
  <url type="homepage">@META_APP_URL@</url>
  <url type="bugtracker">@META_APP_BUGTRACKER_URL@</url>
  <launchable type="desktop-id">@META_ID@.desktop</launchable>
-  <developer id="@META_DEVELOPER_ID@"><name>@META_APP_AUTHOR@</name></developer>
+  <developer_name>@META_APP_AUTHOR@</developer_name>
  <provides>
    <binary>@META_TARGET_NAME@</binary>
  </provides>
--- a/cmake/templates/cli-wrapper.cpp
+++ b/cmake/templates/cli-wrapper.cpp
@ -1,32 +1,42 @@
+#include <boost/process/args.hpp>
+#include <boost/process/child.hpp>
+#include <boost/process/exe.hpp>
+#include <boost/process/group.hpp>
+#include <boost/process/io.hpp>
+
+#include <tchar.h>
 #include <windows.h>

 #include <cstdlib>
 #include <cwchar>
 #include <iostream>
-#include <string_view>
 #include <system_error>
+#include <string_view>

-/*!
- * \brief Returns \a replacement if \a value matches \a key; otherwise returns \a value.
- */
-static constexpr std::size_t replace(std::size_t value, std::size_t key, std::size_t replacement)
+static bool enableVirtualTerminalProcessing(DWORD nStdHandle)
 {
-    return value == key ? replacement : value;
+    auto stdHandle = GetStdHandle(nStdHandle);
+    if (stdHandle == INVALID_HANDLE_VALUE) {
+        return false;
+    }
+    auto dwMode = DWORD();
+    if (!GetConsoleMode(stdHandle, &dwMode)) {
+        return false;
+    }
+    dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+    return SetConsoleMode(stdHandle, dwMode);
 }

-/*!
- * \brief Sets the console up and launches the "main" application.
- */
-int main()
+int wmain(int argc, wchar_t *argv[])
 {
-    // ensure environment variables are set so the main executable will attach to the parent's console
-    // note: This is still required for this wrapper to receive standard I/O. We also still rely on the main
-    //       process to enable UTF-8 and virtual terminal processing.
+    namespace bp = boost::process;
+
+    // setup console
    SetConsoleCP(CP_UTF8);
    SetConsoleOutputCP(CP_UTF8);
-    SetEnvironmentVariableW(L"ENABLE_CONSOLE", L"1");
-    SetEnvironmentVariableW(L"ENABLE_CP_UTF8", L"1");
-    SetEnvironmentVariableW(L"ENABLE_HANDLING_VIRTUAL_TERMINAL_PROCESSING", L"1");
+    if (enableVirtualTerminalProcessing(STD_OUTPUT_HANDLE) && enableVirtualTerminalProcessing(STD_ERROR_HANDLE)) {
+        SetEnvironmentVariable(L"ENABLE_ESCAPE_CODES", L"1");
+    }

    // determine the wrapper executable path
    wchar_t pathBuffer[MAX_PATH];
@ -35,9 +45,12 @@ int main()
        return EXIT_FAILURE;
    }

-    // replace "-cli.exe" in the wrapper executable's file name with just ".exe" to make up the main executable path
+    // replace "-cli.exe" with just ".exe" to determine the main executable path
    const auto path = std::wstring_view(pathBuffer);
-    const auto filenameStart = replace(path.rfind(L'\\'), std::wstring_view::npos, 0);
+    auto filenameStart = path.rfind(L'\\');
+    if (filenameStart == std::wstring_view::npos) {
+        filenameStart = 0;
+    }
    const auto appendixStart = std::wstring_view(pathBuffer + filenameStart, path.size() - filenameStart).rfind(L"-cli.exe");
    if (appendixStart == std::wstring_view::npos) {
        std::cerr << "Unable to determine main executable path: unexpected wrapper executable name\n";
@ -45,39 +58,18 @@ int main()
    }
    std::wcscpy(pathBuffer + filenameStart + appendixStart, L".exe");

-    // compute startup parameters
-    auto commandLine = GetCommandLineW();
-    auto processInformation = PROCESS_INFORMATION();
-    auto startupInfo = STARTUPINFOW();
-    ZeroMemory(&startupInfo, sizeof(startupInfo));
-    ZeroMemory(&processInformation, sizeof(processInformation));
-    startupInfo.cb = sizeof(startupInfo);
-    startupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
-    startupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
-    startupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
-    startupInfo.dwFlags |= STARTF_USESTDHANDLES;
-
-    // start main executable in new group and print debug information if that's not possible
-    auto res = CreateProcessW(pathBuffer, // path of main executable
-        commandLine, // command line arguments
-        nullptr, // process handle not inheritable
-        nullptr, // thread handle not inheritable
-        true, // set handle inheritance to true
-        CREATE_NEW_PROCESS_GROUP, // creation flags
-        nullptr, // use parent's environment block
-        nullptr, // use parent's starting directory
-        &startupInfo, // pointer to STARTUPINFO structure
-        &processInformation); // pointer to PROCESS_INFORMATION structure
-    if (!res) {
-        std::cerr << "Unable to launch main executable: " << std::error_code(GetLastError(), std::system_category()) << '\n';
-        std::wcerr << L" - assumed path: " << pathBuffer << L'\n';
-        std::wcerr << L" - assumed command-line: " << commandLine << L'\n';
+    // launch main executable via group and wait for its termination
+    auto ec = std::error_code();
+    auto group = bp::group();
+    auto child = bp::child(bp::exe(pathBuffer), bp::args(++argv), bp::std_out > stdout, bp::std_err > stderr, bp::std_in < stdin, ec);
+    if (ec) {
+        std::cerr << "Unable to launch \"" << argv[0] << "\": " << ec.message() << '\n';
        return EXIT_FAILURE;
    }
-
-    // wait for main executable and possible children to terminate and return exit code
-    auto exitCode = DWORD();
-    WaitForSingleObject(processInformation.hProcess, INFINITE);
-    GetExitCodeProcess(processInformation.hProcess, &exitCode);
-    return exitCode;
+    group.wait(ec);
+    if (ec) {
+        std::cerr << "Unable to wait for group to terminate: " << ec.message() << '\n';
+        return EXIT_FAILURE;
+    }
+    return child.exit_code();
 }
--- a/cmake/templates/config.h.in
+++ b/cmake/templates/config.h.in
@ -13,11 +13,7 @@
 #define PROJECT_CONFIG_SUFFIX "@META_CONFIG_SUFFIX@"
 #define PROJECT_CONFIG_TARGET_SUFFIX "@TARGET_SUFFIX@"
 #define APP_NAME "@META_APP_NAME@"
-#define APP_ID "@META_ID@"
 #define APP_VERSION "@META_APP_VERSION@"
-#define APP_VERSION_MAJOR @META_VERSION_MAJOR@
-#define APP_VERSION_MINOR @META_VERSION_MINOR@
-#define APP_VERSION_PATCH @META_VERSION_PATCH@
 #define APP_AUTHOR "@META_APP_AUTHOR@"
 #define APP_CREDITS "@META_APP_CREDITS@"
 #define APP_URL "@META_APP_URL@"
--- a/cmake/templates/global.h.in
+++ b/cmake/templates/global.h.in
@ -4,7 +4,6 @@
 #ifndef @META_PROJECT_VARNAME_UPPER@_GLOBAL
 #define @META_PROJECT_VARNAME_UPPER@_GLOBAL

-#include "@META_PROJECT_NAME@-definitions.h"
 #include @GENERAL_GLOBAL_H_INCLUDE_PATH@

 #ifdef @META_PROJECT_VARNAME_UPPER@_STATIC
--- a/conversion/binaryconversionprivate.h
+++ b/conversion/binaryconversionprivate.h
@ -1,16 +1,7 @@
-// assert that CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL is defined; a value of:
-// - 0 means to define functions for BE namespace
-// - 1 means to define functions for LE namespace
 #ifndef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL
 #error "Do not include binaryconversionprivate.h directly."
 #else

-// define macro if swapping byte order is required
-#if (CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0 && defined(CONVERSION_UTILITIES_BYTE_ORDER_LITTLE_ENDIAN))                                 \
-    || (CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 1 && defined(CONVERSION_UTILITIES_BYTE_ORDER_BIG_ENDIAN))
-#define CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL_NEEDS_SWAP
-#endif
-
 // disable warnings about sign conversions when using GCC or Clang
 #ifdef __GNUC__
 #pragma GCC diagnostic push
@ -153,7 +144,7 @@ template <class T, Traits::EnableIf<std::is_integral<T>> * = nullptr> CPP_UTILIT
 {
    auto dst = T();
    std::memcpy(&dst, value, sizeof(T));
-#ifdef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL_NEEDS_SWAP
+#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    dst = swapOrder(dst);
 #endif
    return dst;
@ -168,11 +159,11 @@ CPP_UTILITIES_EXPORT inline void getBytes24(std::uint32_t value, char *outputbuf
 #if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 8) & 0xFF);
-    outputbuffer[2] = static_cast<char>((value) & 0xFF);
+    outputbuffer[2] = static_cast<char>((value)&0xFF);
 #else
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 8) & 0xFF);
-    outputbuffer[0] = static_cast<char>((value) & 0xFF);
+    outputbuffer[0] = static_cast<char>((value)&0xFF);
 #endif
 }

@ -185,7 +176,7 @@ CPP_UTILITIES_EXPORT inline void getBytes24(std::uint32_t value, char *outputbuf
 */
 template <class T, Traits::EnableIf<std::is_integral<T>> * = nullptr> CPP_UTILITIES_EXPORT inline void getBytes(T value, char *outputbuffer)
 {
-#ifdef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL_NEEDS_SWAP
+#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    value = swapOrder(value);
 #endif
    std::memcpy(outputbuffer, &value, sizeof(T));
@ -215,6 +206,4 @@ CPP_UTILITIES_EXPORT inline void getBytes(double value, char *outputbuffer)
 #pragma GCC diagnostic pop
 #endif

-#undef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL_NEEDS_SWAP
-
 #endif // CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL
--- a/conversion/stringbuilder.h
+++ b/conversion/stringbuilder.h
@ -16,16 +16,16 @@ template <class StringType, class ViewType> using IsStringViewType = std::is_sam
 template <class StringType, class CharType> using IsCharType = std::is_same<typename StringType::value_type, CharType>;
 namespace Detail {
 template <typename StringType, typename T>
-auto IsStringType(
-    int) -> decltype(std::declval<StringType &>().append(std::declval<const T &>()), std::declval<const T &>().size(), Traits::Bool<true>{});
+auto IsStringType(int)
+    -> decltype(std::declval<StringType &>().append(std::declval<const T &>()), std::declval<const T &>().size(), Traits::Bool<true>{});
 template <typename StringType, typename T> Traits::Bool<false> IsStringType(...);
 template <typename StringType> void functionTakingConstStringRef(const StringType &str);
 template <typename StringType, typename T>
 auto IsConvertibleToConstStringRef(int) -> decltype(functionTakingConstStringRef<StringType>(std::declval<const T &>()), Traits::Bool<true>{});
 template <typename StringType, typename T> Traits::Bool<false> IsConvertibleToConstStringRef(...);
 template <typename StringType, typename T>
-auto IsConvertibleToConstStringRefViaNative(
-    int) -> decltype(functionTakingConstStringRef<StringType>(std::declval<const T &>().native()), Traits::Bool<true>{});
+auto IsConvertibleToConstStringRefViaNative(int)
+    -> decltype(functionTakingConstStringRef<StringType>(std::declval<const T &>().native()), Traits::Bool<true>{});
 template <typename StringType, typename T> Traits::Bool<false> IsConvertibleToConstStringRefViaNative(...);
 } // namespace Detail
 template <typename StringType, typename StringType2>
--- a/conversion/stringconversion.cpp
+++ b/conversion/stringconversion.cpp
@ -8,7 +8,6 @@
 #define CPP_UTILITIES_THREAD_LOCAL
 #endif

-#include <algorithm>
 #include <cmath>
 #include <cstdlib>
 #include <iomanip>
@ -204,25 +203,22 @@ StringData convertUtf8ToLatin1(const char *inputBuffer, std::size_t inputBufferS
 #ifdef PLATFORM_WINDOWS
 /*!
 * \brief Converts the specified multi-byte string (assumed to be UTF-8) to a wide string using the WinAPI.
- * \remarks
- * - Only available under Windows.
- * - If \a inputBuffer exceeds std::numeric_limits<int>::max() it will be truncated.
+ * \remarks Only available under Windows.
 */
 std::wstring convertMultiByteToWide(std::error_code &ec, std::string_view inputBuffer)
 {
    // calculate required size
    auto widePath = std::wstring();
-    auto bufferSize = static_cast<int>(std::clamp<std::size_t>(inputBuffer.size(), 0, std::numeric_limits<int>::max()));
-    auto size = MultiByteToWideChar(CP_UTF8, 0, inputBuffer.data(), bufferSize, nullptr, 0);
+    auto size = MultiByteToWideChar(CP_UTF8, 0, inputBuffer.data(), inputBuffer.size(), nullptr, 0);
    if (size <= 0) {
-        ec = std::error_code(static_cast<int>(GetLastError()), std::system_category());
+        ec = std::error_code(GetLastError(), std::system_category());
        return widePath;
    }
    // do the actual conversion
    widePath.resize(static_cast<std::wstring::size_type>(size));
-    size = MultiByteToWideChar(CP_UTF8, 0, inputBuffer.data(), bufferSize, widePath.data(), size);
+    size = MultiByteToWideChar(CP_UTF8, 0, inputBuffer.data(), inputBuffer.size(), widePath.data(), size);
    if (size <= 0) {
-        ec = std::error_code(static_cast<int>(GetLastError()), std::system_category());
+        ec = std::error_code(GetLastError(), std::system_category());
        widePath.clear();
    }
    return widePath;
@ -240,14 +236,14 @@ WideStringData convertMultiByteToWide(std::error_code &ec, const char *inputBuff
    WideStringData widePath;
    widePath.second = MultiByteToWideChar(CP_UTF8, 0, inputBuffer, inputBufferSize, nullptr, 0);
    if (widePath.second <= 0) {
-        ec = std::error_code(static_cast<int>(GetLastError()), std::system_category());
+        ec = std::error_code(GetLastError(), std::system_category());
        return widePath;
    }
    // do the actual conversion
    widePath.first = make_unique<wchar_t[]>(static_cast<size_t>(widePath.second));
    widePath.second = MultiByteToWideChar(CP_UTF8, 0, inputBuffer, inputBufferSize, widePath.first.get(), widePath.second);
    if (widePath.second <= 0) {
-        ec = std::error_code(static_cast<int>(GetLastError()), std::system_category());
+        ec = std::error_code(GetLastError(), std::system_category());
        widePath.first.reset();
    }
    return widePath;
@ -414,23 +410,22 @@ string encodeBase64(const std::uint8_t *data, std::uint32_t dataSize)
 * \throw Throws a ConversionException if the specified string is no valid Base64.
 * \sa [RFC 4648](http://www.ietf.org/rfc/rfc4648.txt)
 */
-std::pair<unique_ptr<std::uint8_t[]>, std::uint32_t> decodeBase64(const char *encodedStr, const std::uint32_t strSize)
+pair<unique_ptr<std::uint8_t[]>, std::uint32_t> decodeBase64(const char *encodedStr, const std::uint32_t strSize)
 {
-    if (!strSize) {
-        return std::make_pair(std::make_unique<std::uint8_t[]>(0), 0); // early return to prevent clazy warning
-    }
    if (strSize % 4) {
        throw ConversionException("invalid size of base64");
    }
    std::uint32_t decodedSize = (strSize / 4) * 3;
    const char *const end = encodedStr + strSize;
-    if (*(end - 1) == base64Pad) {
-        --decodedSize;
+    if (strSize) {
+        if (*(end - 1) == base64Pad) {
+            --decodedSize;
+        }
+        if (*(end - 2) == base64Pad) {
+            --decodedSize;
+        }
    }
-    if (*(end - 2) == base64Pad) {
-        --decodedSize;
-    }
-    auto buffer = std::make_unique<std::uint8_t[]>(decodedSize);
+    auto buffer = make_unique<std::uint8_t[]>(decodedSize);
    auto *iter = buffer.get() - 1;
    while (encodedStr < end) {
        std::int32_t temp = 0;
@ -451,10 +446,10 @@ std::pair<unique_ptr<std::uint8_t[]>, std::uint32_t> decodeBase64(const char *en
                case 1:
                    *++iter = static_cast<std::uint8_t>((temp >> 16) & 0xFF);
                    *++iter = static_cast<std::uint8_t>((temp >> 8) & 0xFF);
-                    return std::make_pair(std::move(buffer), decodedSize);
+                    return make_pair(std::move(buffer), decodedSize);
                case 2:
                    *++iter = static_cast<std::uint8_t>((temp >> 10) & 0xFF);
-                    return std::make_pair(std::move(buffer), decodedSize);
+                    return make_pair(std::move(buffer), decodedSize);
                default:
                    throw ConversionException("invalid padding in base64");
                }
@ -466,6 +461,6 @@ std::pair<unique_ptr<std::uint8_t[]>, std::uint32_t> decodeBase64(const char *en
        *++iter = static_cast<std::uint8_t>((temp >> 8) & 0xFF);
        *++iter = static_cast<std::uint8_t>(temp & 0xFF);
    }
-    return std::make_pair(std::move(buffer), decodedSize);
+    return make_pair(std::move(buffer), decodedSize);
 }
 } // namespace CppUtilities
--- a/conversion/stringconversion.h
+++ b/conversion/stringconversion.h
@ -421,16 +421,13 @@ template <typename IntegralType, class StringType = std::string, typename BaseTy
    CppUtilities::Traits::EnableIf<std::is_integral<IntegralType>, std::is_unsigned<IntegralType>> * = nullptr>
 StringType numberToString(IntegralType number, BaseType base = 10)
 {
-    auto resSize = std::size_t();
-    auto n = number;
+    std::size_t resSize = 0;
+    for (auto n = number; n; n /= static_cast<IntegralType>(base), ++resSize)
+        ;
+    StringType res;
+    res.reserve(resSize);
    do {
-        n /= static_cast<IntegralType>(base), ++resSize;
-    } while (n);
-    auto res = StringType(resSize, typename StringType::value_type());
-    auto resIter = res.end();
-    do {
-        *(--resIter)
-            = digitToChar<typename StringType::value_type>(static_cast<typename StringType::value_type>(number % static_cast<IntegralType>(base)));
+        res.insert(res.begin(), digitToChar<typename StringType::value_type>(static_cast<typename StringType::value_type>(number % base)));
        number /= static_cast<IntegralType>(base);
    } while (number);
    return res;
@ -446,24 +443,24 @@ template <typename IntegralType, class StringType = std::string, typename BaseTy
    Traits::EnableIf<std::is_integral<IntegralType>, std::is_signed<IntegralType>> * = nullptr>
 StringType numberToString(IntegralType number, BaseType base = 10)
 {
-    const auto negative = number < 0;
-    auto resSize = std::size_t();
+    const bool negative = number < 0;
+    std::size_t resSize;
    if (negative) {
        number = -number, resSize = 1;
+    } else {
+        resSize = 0;
    }
-    auto n = number;
+    for (auto n = number; n; n /= static_cast<IntegralType>(base), ++resSize)
+        ;
+    StringType res;
+    res.reserve(resSize);
    do {
-        n /= static_cast<IntegralType>(base), ++resSize;
-    } while (n);
-    auto res = StringType(resSize, typename StringType::value_type());
-    auto resIter = res.end();
-    do {
-        *(--resIter)
-            = digitToChar<typename StringType::value_type>(static_cast<typename StringType::value_type>(number % static_cast<IntegralType>(base)));
+        res.insert(res.begin(),
+            digitToChar<typename StringType::value_type>(static_cast<typename StringType::value_type>(number % static_cast<IntegralType>(base))));
        number /= static_cast<IntegralType>(base);
    } while (number);
    if (negative) {
-        *(--resIter) = '-';
+        res.insert(res.begin(), '-');
    }
    return res;
 }
@ -490,7 +487,7 @@ StringType numberToString(FloatingType number, int base = 10)
 */
 template <typename CharType> CharType charToDigit(CharType character, CharType base)
 {
-    auto res = base;
+    CharType res = base;
    if (character >= '0' && character <= '9') {
        res = character - '0';
    } else if (character >= 'a' && character <= 'z') {
@ -501,13 +498,11 @@ template <typename CharType> CharType charToDigit(CharType character, CharType b
    if (res < base) {
        return res;
    }
-    constexpr auto msgBegin = std::string_view("The character \"");
-    constexpr auto msgEnd = std::string_view("\" is no valid digit.");
-    auto errorMsg = std::string();
-    errorMsg.reserve(msgBegin.size() + msgEnd.size() + 2);
-    errorMsg += msgBegin;
+    std::string errorMsg;
+    errorMsg.reserve(36);
+    errorMsg += "The character \"";
    errorMsg += character >= ' ' && character <= '~' ? static_cast<std::string::value_type>(character) : '?';
-    errorMsg += msgEnd;
+    errorMsg += "\" is no valid digit.";
    throw ConversionException(std::move(errorMsg));
 }

--- a/doc/buildvariables.md
+++ b/doc/buildvariables.md
@ -105,8 +105,7 @@ None of these are enabled or set by default, unless stated otherwise.
    * Using `CMAKE_EXE_LINKER_FLAGS` or `CMAKE_SHARED_LINKER_FLAGS` is often not helpful
      because the additional flags need to be added at the end of the linker line most
      of the time.
-* `CONFIGURATION_NAME`: specifies a name to be incorporated into install paths as a
-  *suffix*
+* `CONFIGURATION_NAME`: specifies a name to be incorporated into install paths
    * Builds with different configuration names can be installed alongside within the
      same install prefix.
    * Use cases
@ -118,17 +117,8 @@ None of these are enabled or set by default, unless stated otherwise.
      between different configurations (e.g. static vs. shared libraries).
    * Set `CONFIGURATION_TARGET_SUFFIX` in accordance so library names are affected
      as well.
-    * Set `CONFIGURATION_PACKAGE_SUFFIX` when building consuming libraries to *use*
-      libraries (and their headers and other files) built with `CONFIGURATION_NAME`.
-* `NAMESPACE`: specifies a name to be incorporated into install paths as a *prefix*
-    * Builds with different namespaces can be installed alongside within the same
-      install prefix.
-    * This may be used by packagers who want to give the package a more unique
-      name, e.g. Debian is using `NAMESPACE=martchus` for c++utilities and
-      qtutilities. Supposedly this should be avoided for developer-facing packaging
-      like vcpkg as it is likely not expected by those users.
-    * Set `PACKAGE_NAMESPACE_PREFIX` when building consuming libraries to *use*
-      libraries (and their headers and other files) built with `NAMESPACE`.
+    * Set `CONFIGURATION_PACKAGE_SUFFIX` to *use* libraries built with
+      `CONFIGURATION_NAME`.
 * `ENABLE_WARNINGS`: enables GCC/Clang warnings I consider useful
 * `TREAT_WARNINGS_AS_ERRORS`: treat CCC/Clang warnings as errors
 * `ENABLE_DEVEL_DEFAULTS`: enables defaults I find useful for development (warnings,
--- a/global.h
+++ b/global.h
@ -4,8 +4,7 @@
 #ifndef CPP_UTILITIES_GLOBAL
 #define CPP_UTILITIES_GLOBAL

-#include "c++utilities-definitions.h"
-#include "application/global.h"
+#include "./application/global.h"

 #ifdef CPP_UTILITIES_STATIC
 #define CPP_UTILITIES_EXPORT
--- a/io/bitreader.cpp
+++ b/io/bitreader.cpp
@ -7,31 +7,6 @@ namespace CppUtilities {
 /*!
 * \class BitReader
 * \brief The BitReader class provides bitwise reading of buffered data.
- *
- * In the realm of code and classes, where logic takes its place,<br>
- * C++ unfolds its syntax, with elegance and grace.<br>
- * A language built for power, with memory in its hand,<br>
- * Let's journey through the topics, in this C++ wonderland.
-
- * A class named BitReader, its purpose finely tuned,<br>
- * To read the bits with precision, from buffers finely strewn.<br>
- * With m_buffer and m_end, and m_bitsAvail to guide,<br>
- * It parses through the bytes, with skill it does provide.
- *
- * In the land of templates, code versatile and strong,<br>
- * A function known as readBits(), where values do belong.<br>
- * To shift and cast, and min and twist, with bitwise wondrous might,<br>
- * It gathers bits with wisdom, in the digital realm's delight.
-
- * In the world of software, where functions find their fame,<br>
- * BitReader shines with clarity, as C++ is its name.<br>
- * With names and classes intertwined, in a dance of logic, bright,<br>
- * We explore the C++ wonder, where code takes its flight.
-
- * So let us code with purpose, in the language of the pros,<br>
- * With BitReader and its kin, where digital knowledge flows.<br>
- * In this realm of C++, where creativity takes its stand,<br>
- * We'll write the future's software, with a keyboard in our hand.
 */

 /*!
--- a/io/buffersearch.h
+++ b/io/buffersearch.h
@ -60,7 +60,7 @@ inline void BufferSearch::operator()(std::string_view buffer)
 }

 /*!
- * \brief Processes the specified \a buffer which is a shared array with fixed \tparam bufferCapacity. Invokes the callback according to the remarks mentioned in the class documentation.
+ * \brief Processes the specified \a buffer which is a shared array with fixed \tp bufferCapacity. Invokes the callback according to the remarks mentioned in the class documentation.
 */
 template <std::size_t bufferCapacity>
 inline void BufferSearch::operator()(std::shared_ptr<std::array<std::string_view::value_type, bufferCapacity>> buffer, std::size_t bufferSize)
--- a/misc/flagenumclass.h
+++ b/misc/flagenumclass.h
@ -6,14 +6,14 @@
 namespace CppUtilities {

 /*!
- * \brief The IsFlagEnumClass class is used to decide whether to enable operations for flag enums for \tparam T.
+ * \brief The IsFlagEnumClass class is used to decide whether to enable operations for flag enums for \tp T.
 * \remarks This class is still experimental and might be changed or removed in future minior releases.
 */
 template <typename T> struct IsFlagEnumClass : public Traits::Bool<false> {};

 // clang-format off
 /*!
- * \brief The \def CPP_UTILITIES_MARK_FLAG_ENUM_CLASS macro enables flag enum operators for \a EnumClassType within namespace \a Namespace.
+ * \def The CPP_UTILITIES_MARK_FLAG_ENUM_CLASS macro enables flag enum operators for \a EnumClassType within namespace \a Namespace.
 * \remarks
 * - Must be used outside a namespace.
 * - This macro is still experimental and might be changed or removed in future minior releases.
--- a/tests/argumentparsertests.cpp
+++ b/tests/argumentparsertests.cpp
@ -190,7 +190,7 @@ void ArgumentParserTests::testParsing()
    CPPUNIT_ASSERT_EQUAL("album"sv, std::string_view(fieldsArg.values().at(0)));
    CPPUNIT_ASSERT_EQUAL("title"sv, std::string_view(fieldsArg.values().at(1)));
    CPPUNIT_ASSERT_EQUAL("diskpos"sv, std::string_view(fieldsArg.values().at(2)));
-    CPPUNIT_ASSERT_EQUAL(3_st, fieldsArg.values().size());
+    CPPUNIT_ASSERT_THROW(displayTagInfoArg.values().at(3), std::out_of_range);
    CPPUNIT_ASSERT_EQUAL(&displayTagInfoArg, parser.specifiedOperation());

    // skip empty args
@ -208,7 +208,7 @@ void ArgumentParserTests::testParsing()
    CPPUNIT_ASSERT_EQUAL("title"sv, std::string_view(fieldsArg.values().at(1)));
    CPPUNIT_ASSERT_EQUAL("diskpos"sv, std::string_view(fieldsArg.values().at(2)));
    CPPUNIT_ASSERT_EQUAL(""sv, std::string_view(fieldsArg.values().at(3)));
-    CPPUNIT_ASSERT_EQUAL(4_st, fieldsArg.values().size());
+    CPPUNIT_ASSERT_THROW(fieldsArg.values().at(4), std::out_of_range);
    CPPUNIT_ASSERT(filesArg.isPresent());
    CPPUNIT_ASSERT_EQUAL("somefile"sv, std::string_view(filesArg.values().at(0)));

@ -267,7 +267,7 @@ void ArgumentParserTests::testParsing()
    CPPUNIT_ASSERT(!filesArg.isPresent());
    CPPUNIT_ASSERT(fileArg.isPresent());
    CPPUNIT_ASSERT_EQUAL("test"sv, std::string_view(fileArg.values().at(0)));
-    CPPUNIT_ASSERT_EQUAL(1_st, fileArg.values().size());
+    CPPUNIT_ASSERT_THROW(fileArg.values().at(1), std::out_of_range);

    // constraint checking: no multiple occurrences (not resetting verboseArg on purpose)
    displayFileInfoArg.reset();
@ -405,7 +405,7 @@ void ArgumentParserTests::testParsing()
    CPPUNIT_ASSERT_EQUAL("album=test"sv, std::string_view(fieldsArg.values().at(0)));
    CPPUNIT_ASSERT_EQUAL("title"sv, std::string_view(fieldsArg.values().at(1)));
    CPPUNIT_ASSERT_EQUAL("diskpos"sv, std::string_view(fieldsArg.values().at(2)));
-    CPPUNIT_ASSERT_EQUAL(3_st, fieldsArg.values().size());
+    CPPUNIT_ASSERT_THROW(fieldsArg.values().at(3), out_of_range);
    CPPUNIT_ASSERT(filesArg.isPresent());
    CPPUNIT_ASSERT_EQUAL("somefile"sv, std::string_view(filesArg.values().at(0)));
    CPPUNIT_ASSERT(!notAlbumArg.isPresent());
@ -473,7 +473,7 @@ void ArgumentParserTests::testParsing()
    CPPUNIT_ASSERT_EQUAL("foo"sv, std::string_view(fieldsArg.values().at(0)));
    CPPUNIT_ASSERT_EQUAL("bar"sv, std::string_view(fieldsArg.values().at(1)));
    CPPUNIT_ASSERT_EQUAL("--help"sv, std::string_view(fieldsArg.values().at(2)));
-    CPPUNIT_ASSERT_EQUAL(3_st, fieldsArg.values().size());
+    CPPUNIT_ASSERT_THROW(fieldsArg.values().at(3), std::out_of_range);
 }

 /*!
--- a/tests/chronotests.cpp
+++ b/tests/chronotests.cpp
@ -317,23 +317,13 @@ void ChronoTests::testDateTimeExpression()
 */
 void ChronoTests::testTimeSpan()
 {
-    // test various usages of fromString(...), all other from...() functions and the plus operator
+    // test fromString(...), this should also test all other from...() methods and + operator
    CPPUNIT_ASSERT_EQUAL(TimeSpan(), TimeSpan::fromString(string()));
    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromSeconds(5.0), TimeSpan::fromString("5.0"));
    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromMinutes(5.5), TimeSpan::fromString("5:30"));
    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromHours(7.0) + TimeSpan::fromMinutes(5.5), TimeSpan::fromString("7:5:30"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0), TimeSpan::fromString("14:::"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0), TimeSpan::fromString("14d"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0) + TimeSpan::fromHours(5.0), TimeSpan::fromString("14d 5h"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0) + TimeSpan::fromMinutes(5.0), TimeSpan::fromString(" 14d   5m"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0) + TimeSpan::fromMinutes(5.0) + TimeSpan::fromSeconds(24.5), TimeSpan::fromString("2 w 24.5s 5m "));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0) + TimeSpan::fromSeconds(24.5), TimeSpan::fromString("2 w 24.5"));
-    CPPUNIT_ASSERT_EQUAL(TimeSpan::fromDays(14.0) + TimeSpan::fromString("1:2:3:4"), TimeSpan::fromString("2 w 1:2:3:4"));
-    CPPUNIT_ASSERT_THROW(TimeSpan::fromString("2:34a:53:32.5"), ConversionException);
-    CPPUNIT_ASSERT_THROW(TimeSpan::fromString("1:2:3:4:5"), ConversionException);
-
-    // test fromString(...) again and days(), hours(), ...
    const auto test1 = TimeSpan::fromString("2:34:53:2.5");
+    // test days(), hours(), ...
    CPPUNIT_ASSERT_EQUAL(3, test1.days());
    CPPUNIT_ASSERT_EQUAL(10, test1.hours());
    CPPUNIT_ASSERT_EQUAL(53, test1.minutes());
@ -342,14 +332,12 @@ void ChronoTests::testTimeSpan()
    CPPUNIT_ASSERT(test1.totalDays() > 3.0 && test1.totalDays() < 4.0);
    CPPUNIT_ASSERT(test1.totalHours() > (2 * 24 + 34) && test1.totalHours() < (2 * 24 + 35));
    CPPUNIT_ASSERT(test1.totalMinutes() > (2 * 24 * 60 + 34 * 60 + 53) && test1.totalHours() < (2 * 24 * 60 + 34 * 60 + 54));
-
    // test toString(...)
    CPPUNIT_ASSERT_EQUAL("3 d 10 h 53 min 2 s 500 ms"s, test1.toString(TimeSpanOutputFormat::WithMeasures, false));
    CPPUNIT_ASSERT_EQUAL("07:05:30"s, (TimeSpan::fromHours(7.0) + TimeSpan::fromMinutes(5.5)).toString());
    CPPUNIT_ASSERT_EQUAL("-5 s"s, TimeSpan::fromSeconds(-5.0).toString(TimeSpanOutputFormat::WithMeasures, false));
    CPPUNIT_ASSERT_EQUAL("0 s"s, TimeSpan().toString(TimeSpanOutputFormat::WithMeasures, false));
    CPPUNIT_ASSERT_EQUAL("5e+02 µs"s, TimeSpan::fromMilliseconds(0.5).toString(TimeSpanOutputFormat::WithMeasures, false));
-
    // test accuracy (of 100 nanoseconds)
    const auto test2 = TimeSpan::fromString("15.985077682");
    CPPUNIT_ASSERT_EQUAL(15.9850776, test2.totalSeconds());
@ -360,6 +348,9 @@ void ChronoTests::testTimeSpan()
    CPPUNIT_ASSERT_EQUAL("00:00:15.9850776"s, test2.toString());
    CPPUNIT_ASSERT_EQUAL("15 s 985 ms 77 µs 600 ns"s, test2.toString(TimeSpanOutputFormat::WithMeasures));
    CPPUNIT_ASSERT_EQUAL("15.9850776"s, test2.toString(TimeSpanOutputFormat::TotalSeconds));
+
+    // test whether ConversionException() is thrown when invalid values are specified
+    CPPUNIT_ASSERT_THROW(TimeSpan::fromString("2:34a:53:32.5"), ConversionException);
 }

 /*!
--- a/tests/iotests.cpp
+++ b/tests/iotests.cpp
@ -568,7 +568,6 @@ void IoTests::testCopyWithNativeFileStream()
    const auto isAborted = [] { return false; };
    const auto callback = [&percentage](double p) { percentage = p; };
    testFile.seekg(0);
-    outputStream.close();
    outputStream.open(outputPath, ios_base::out | ios_base::trunc | ios_base::binary);
    copyHelper.callbackCopy(testFile, outputStream, 50, isAborted, callback);
    CPPUNIT_ASSERT_EQUAL(1.0, percentage);
@ -650,6 +649,7 @@ void IoTests::testAnsiEscapeCodes()
    ss1 << EscapeCodes::color(EscapeCodes::Color::Blue, EscapeCodes::Color::Red, EscapeCodes::TextAttribute::Blink)
        << "blue, blinking text on red background" << EscapeCodes::TextAttribute::Reset << '\n';
    cout << "\noutput for formatting with ANSI escape codes:\n" << ss1.str() << "---------------------------------------------\n";
+    fstream("/tmp/test.txt", ios_base::out | ios_base::trunc) << ss1.str();
    CPPUNIT_ASSERT_EQUAL("\033[1;31mError: \033[0m\033[1msome error\033[0m\n"
                         "\033[1;33mWarning: \033[0m\033[1msome warning\033[0m\n"
                         "\033[1;34mInfo: \033[0m\033[1msome info\033[0m\n"
--- a/tests/testutils.cpp
+++ b/tests/testutils.cpp
@ -27,19 +27,6 @@
 #include <unistd.h>
 #endif

-#ifdef CPP_UTILITIES_BOOST_PROCESS
-#include <boost/asio/buffers_iterator.hpp>
-#include <boost/asio/io_context.hpp>
-#include <boost/asio/streambuf.hpp>
-#include <boost/process/async.hpp>
-#include <boost/process/child.hpp>
-#include <boost/process/env.hpp>
-#include <boost/process/environment.hpp>
-#include <boost/process/group.hpp>
-#include <boost/process/io.hpp>
-#include <boost/process/search_path.hpp>
-#endif
-
 #ifdef PLATFORM_WINDOWS
 #include <windows.h>
 #endif
@ -404,16 +391,7 @@ string TestApplication::workingCopyPathAs(
    return workingCopyPath;
 }

-#ifdef CPP_UTILITIES_HAS_EXEC_APP
-
-#if defined(CPP_UTILITIES_BOOST_PROCESS)
-inline static std::string streambufToString(boost::asio::streambuf &buf)
-{
-    const auto begin = boost::asio::buffers_begin(buf.data());
-    return std::string(begin, begin + static_cast<std::ptrdiff_t>(buf.size()));
-}
-#endif
-
+#ifdef PLATFORM_UNIX
 /*!
 * \brief Executes an application with the specified \a args.
 * \remarks Provides internal implementation of execApp() and execHelperApp().
@ -433,48 +411,6 @@ static int execAppInternal(const char *appPath, const char *const *args, std::st
        cout << endl;
    }

-#if defined(CPP_UTILITIES_BOOST_PROCESS)
-    auto path = enableSearchPath ? boost::process::search_path(appPath) : boost::process::filesystem::path(appPath);
-    auto ctx = boost::asio::io_context();
-    auto group = boost::process::group();
-    auto argsAsVector =
-#if defined(PLATFORM_WINDOWS)
-        std::vector<std::wstring>();
-#else
-        std::vector<std::string>();
-#endif
-    if (*args) {
-        for (const char *const *arg = args + 1; *arg; ++arg) {
-#if defined(PLATFORM_WINDOWS)
-            auto ec = std::error_code();
-            argsAsVector.emplace_back(convertMultiByteToWide(ec, std::string_view(*arg)));
-            if (ec) {
-                throw std::runtime_error(argsToString("unable to convert arg \"", *arg, "\" to wide string"));
-            }
-#else
-            argsAsVector.emplace_back(*arg);
-#endif
-        }
-    }
-    auto outputBuffer = boost::asio::streambuf(), errorBuffer = boost::asio::streambuf();
-    auto env = boost::process::environment(boost::this_process::environment());
-    if (!newProfilingPath.empty()) {
-        env["LLVM_PROFILE_FILE"] = newProfilingPath;
-    }
-    auto child
-        = boost::process::child(ctx, group, path, argsAsVector, env, boost::process::std_out > outputBuffer, boost::process::std_err > errorBuffer);
-    if (timeout > 0) {
-        ctx.run_for(std::chrono::milliseconds(timeout));
-    } else {
-        ctx.run();
-    }
-    output = streambufToString(outputBuffer);
-    errors = streambufToString(errorBuffer);
-    child.wait();
-    group.wait();
-    return child.exit_code();
-
-#elif defined(PLATFORM_UNIX)
    // create pipes
    int coutPipes[2], cerrPipes[2];
    pipe(coutPipes);
@ -542,7 +478,6 @@ static int execAppInternal(const char *appPath, const char *const *args, std::st
        // get return code
        int childReturnCode;
        waitpid(child, &childReturnCode, 0);
-        waitpid(-child, nullptr, 0);
        return childReturnCode;
    } else {
        // child process
@ -554,12 +489,6 @@ static int execAppInternal(const char *appPath, const char *const *args, std::st
        close(readCerrPipe);
        close(writeCerrPipe);

-        // -> create process group
-        if (setpgid(0, 0)) {
-            cerr << Phrases::Error << "Unable create process group: " << std::strerror(errno) << Phrases::EndFlush;
-            exit(EXIT_FAILURE);
-        }
-
        // -> modify environment variable LLVM_PROFILE_FILE to apply new path for profiling output
        if (!newProfilingPath.empty()) {
            setenv("LLVM_PROFILE_FILE", newProfilingPath.data(), true);
@ -568,16 +497,13 @@ static int execAppInternal(const char *appPath, const char *const *args, std::st
        // -> execute application
        if (enableSearchPath) {
            execvp(appPath, const_cast<char *const *>(args));
+
        } else {
            execv(appPath, const_cast<char *const *>(args));
        }
-        cerr << Phrases::Error << "Unable to execute \"" << appPath << "\": " << std::strerror(errno) << Phrases::EndFlush;
-        exit(EXIT_FAILURE);
+        cerr << Phrases::Error << "Unable to execute \"" << appPath << "\": execv() failed" << Phrases::EndFlush;
+        exit(-101);
    }
-
-#else
-    throw std::runtime_error("lauching test applications is not supported on this platform");
-#endif
 }

 /*!
@ -586,6 +512,7 @@ static int execAppInternal(const char *appPath, const char *const *args, std::st
 * \throws Throws std::runtime_error when the application can not be executed.
 * \remarks
 *  - The specified \a args must be 0 terminated. The first argument is the application name.
+ *  - Currently only supported under UNIX.
 *  - \a stdout and \a stderr are cleared before.
 */
 int TestApplication::execApp(const char *const *args, string &output, string &errors, bool suppressLogging, int timeout) const
@ -645,6 +572,7 @@ int TestApplication::execApp(const char *const *args, string &output, string &er
 * \remarks
 * - Intended to invoke helper applications (eg. to setup test files). Use execApp() and TestApplication::execApp() to
 *   invoke the application to be tested itself.
+ * - Currently only supported under UNIX.
 */
 int execHelperApp(const char *appPath, const char *const *args, std::string &output, std::string &errors, bool suppressLogging, int timeout)
 {
@ -659,13 +587,14 @@ int execHelperApp(const char *appPath, const char *const *args, std::string &out
 * \remarks
 * - Intended to invoke helper applications (eg. to setup test files). Use execApp() and TestApplication::execApp() to
 *   invoke the application to be tested itself.
+ * - Currently only supported under UNIX.
 */
 int execHelperAppInSearchPath(
    const char *appName, const char *const *args, std::string &output, std::string &errors, bool suppressLogging, int timeout)
 {
    return execAppInternal(appName, args, output, errors, suppressLogging, timeout, string(), true);
 }
-#endif
+#endif // PLATFORM_UNIX

 /*!
 * \brief Reads the path of the test file directory from the environment variable TEST_FILE_PATH.
--- a/tests/testutils.h
+++ b/tests/testutils.h
@ -2,7 +2,6 @@
 #define TESTUTILS_H

 #include "../application/argumentparser.h"
-#include "../chrono/format.h"
 #include "../misc/traits.h"

 #include <iomanip>
@ -10,16 +9,6 @@
 #include <ostream>
 #include <string>

-#if defined(PLATFORM_UNIX) || defined(CPP_UTILITIES_BOOST_PROCESS)
-#define CPP_UTILITIES_HAS_EXEC_APP
-#endif
-
-// ensure CppUnit's macros produce unique variable names when doing unity builds
-#if defined(__COUNTER__)
-#undef CPPUNIT_UNIQUE_COUNTER
-#define CPPUNIT_UNIQUE_COUNTER __COUNTER__
-#endif
-
 namespace CppUtilities {

 /*!
@ -45,7 +34,7 @@ public:
    std::string workingCopyPath(const std::string &relativeTestFilePath, WorkingCopyMode mode = WorkingCopyMode::CreateCopy) const;
    std::string workingCopyPathAs(const std::string &relativeTestFilePath, const std::string &relativeWorkingCopyPath,
        WorkingCopyMode mode = WorkingCopyMode::CreateCopy) const;
-#ifdef CPP_UTILITIES_HAS_EXEC_APP
+#ifdef PLATFORM_UNIX
    int execApp(const char *const *args, std::string &output, std::string &errors, bool suppressLogging = false, int timeout = -1) const;
 #endif

@ -191,7 +180,7 @@ inline CPP_UTILITIES_EXPORT std::string workingCopyPathAs(
    return TestApplication::instance()->workingCopyPathAs(relativeTestFilePath, relativeWorkingCopyPath, mode);
 }

-#ifdef CPP_UTILITIES_HAS_EXEC_APP
+#ifdef PLATFORM_UNIX
 /*!
 * \brief Convenience function which executes the application to be tested with the specified \a args.
 * \remarks A TestApplication must be present.
@ -206,7 +195,7 @@ CPP_UTILITIES_EXPORT int execHelperApp(
    const char *appPath, const char *const *args, std::string &output, std::string &errors, bool suppressLogging = false, int timeout = -1);
 CPP_UTILITIES_EXPORT int execHelperAppInSearchPath(
    const char *appName, const char *const *args, std::string &output, std::string &errors, bool suppressLogging = false, int timeout = -1);
-#endif
+#endif // PLATFORM_UNIX

 /*!
 * \brief Allows printing std::optional objects so those can be asserted using CPPUNIT_ASSERT_EQUAL.
@ -298,16 +287,6 @@ template <typename T, Traits::DisableIf<std::is_integral<T>> * = nullptr> const
 *
 * \remarks Requires cppunit.
 */
-#ifdef CPP_UTILITIES_BOOST_PROCESS
-#define TESTUTILS_ASSERT_EXEC_EXIT_STATUS(args, expectedExitStatus)                                                                                  \
-    {                                                                                                                                                \
-        const auto status = execApp(args, stdout, stderr);                                                                                           \
-        if (status != expectedExitStatus) {                                                                                                          \
-            CPPUNIT_FAIL(::CppUtilities::argsToString(                                                                                               \
-                "app exited with status ", status, " (expected ", expectedExitStatus, ")\nstdout: ", stdout, "\nstderr: ", stderr));                 \
-        }                                                                                                                                            \
-    }
-#else
 #define TESTUTILS_ASSERT_EXEC_EXIT_STATUS(args, expectedExitStatus)                                                                                  \
    {                                                                                                                                                \
        const auto status = execApp(args, stdout, stderr);                                                                                           \
@ -319,7 +298,6 @@ template <typename T, Traits::DisableIf<std::is_integral<T>> * = nullptr> const
                "app exited with status ", exitStatus, " (expected ", expectedExitStatus, ")\nstdout: ", stdout, "\nstderr: ", stderr));             \
        }                                                                                                                                            \
    }
-#endif

 /*!
 * \brief Asserts whether the specified \a string matches the specified \a regex.