Small optimization of build process: QT_VERSION_MAJOR and WANT_PERL_DOCS

[VVD]

Patch:

--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -410,6 +410,8 @@ endif()
 # first check if Qt6 or Qt5 has to be used
 if(NOT DEFINED QT_VERSION_MAJOR)
        find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core)
+else()
+       find_package(QT NAMES Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core)
 endif()
 # second, detect available modules for the specific Qt version
 find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
@@ -774,7 +776,10 @@ endif()
 option(WANT_PERL "Compile Perl support" ON)

 # Perl is needed for documentation, too
-find_package(Perl)
+option(WANT_PERL_DOCS "Use Perl for build documentation" ON)
+if(WANT_PERL_DOCS)
+       find_package(Perl)
+endif()

 if(WANT_PERL)
        if(PERL_FOUND)

1. If run cmake with -DQT_VERSION_MAJOR=5 command line option then configure stage doesn't print Qt version:
   -- Qt version :
   with patch or without -DQT_VERSION_MAJOR=5:
   -- Qt version : 5.15.13

2. If perl installed then it used for build documentation without any possibility to prevent this.

[DarthGandalf]

Please attach it as a pull request, it'll be much easier to merge it

[VVD]

AFAIK, it's impossible to create pull request without fork full repo - I don't want create personal fork for "oneliners".

[DarthGandalf]

You can always delete it later

[DarthGandalf]

Btw, there is https://cmake.org/cmake/help/latest/variable/CMAKE_DISABLE_FIND_PACKAGE_PackageName.html

[VVD]

3. If the build was without perl, then share/kvirc/5.2/help is not created and the check in KviApplication::checkGlobalKvircDirectory does not pass. Replace check help with config:

--- src/kvirc/kernel/KviApplication_setup.cpp.orig
+++ src/kvirc/kernel/KviApplication_setup.cpp
@@ -63,10 +63,10 @@ static QLibrary * g_pSetupLibrary = nullptr;

 bool KviApplication::checkGlobalKvircDirectory(const QString szDir)
 {
-       //First check if the help subdir exists
-       QString szHelpDir = szDir;
-       szHelpDir += KVI_PATH_SEPARATOR "help";
-       if(!KviFileUtils::directoryExists(szHelpDir))
+       //First check if the config subdir exists
+       QString szConfigDir = szDir;
+       szConfigDir += KVI_PATH_SEPARATOR "config";
+       if(!KviFileUtils::directoryExists(szConfigDir))
                return false;
        //Then check if the pics subdir exists
        QString szPicsDir = szDir;

4. Build failed with error:

FAILED: src/kvirc/kvirc
: && /usr/bin/c++ -O3 -Wl,--undefined-version  -fstack-protector-strong   -Wl,--export-dynamic -Wl,-export-dynamic src/kvirc/CMakeFiles/kvirc.dir/kvirc_autogen/mocs_compilation.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviActionDrawer.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviChannelWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviColorSelectionWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviConsoleWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviCryptController.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviCtcpPageDialog.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviCustomToolBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviDebugWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviDynamicToolTip.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviFileDialog.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviMainWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviHistoryWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviHtmlDialog.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviImageDialog.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviInput.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviInputEditor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviInputHistory.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIpEditor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcToolBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcView.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcView_events.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcView_getTextLine.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcView_loghandling.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviIrcView_tools.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviMaskEditor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviMenuBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviModeEditor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviModeWidget.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviMessageBox.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviOptionsWidget.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviQueryWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviScriptButton.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviScriptEditor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviSelectors.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviStatusBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviStatusBarApplet.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviTextIconWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviThemedComboBox.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviThemedLabel.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviThemedLineEdit.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviThemedTreeWidget.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviToolBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviWebPackageManagementDialog.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviWindowToolWidget.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviTopicWidget.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviUserListView.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviWindow.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviWindowListBase.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviWindowStack.cpp.o src/kvirc/CMakeFiles/kvirc.dir/ui/KviTreeWindowList.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviAntiSpam.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcMessage.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcServerParser_ctcp.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcServerParser_literalHandlers.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcServerParser_numericHandlers.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcServerParser_tables.cpp.o src/kvirc/CMakeFiles/kvirc.dir/sparser/KviIrcServerParser.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviMexLinkFilter.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviMexServerImport.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviMexToolBar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviModule.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviModuleExtension.cpp.o src/kvirc/CMakeFiles/kvirc.dir/module/KviModuleManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvs.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsAction.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsAliasManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsArray.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsArrayCast.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsAsyncDnsOperation.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsAsyncOperation.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCallbackObject.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreCallbackCommands.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreFunctions.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreFunctions_af.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreFunctions_gl.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreFunctions_mr.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreFunctions_sz.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreSimpleCommands.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreSimpleCommands_af.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreSimpleCommands_gl.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreSimpleCommands_mr.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsCoreSimpleCommands_sz.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsDnsManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsHash.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsKernel.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsModuleInterface.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsParameterProcessor.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsPopupManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsPopupMenu.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsProcessManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsReport.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsRunTimeCall.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsRunTimeContext.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsRWEvaluationResult.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsScript.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsScriptAddonManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsSwitchList.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsTimerManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsUserAction.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsVariant.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/KviKvsVariantList.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/event/KviKvsEvent.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/event/KviKvsEventHandler.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/event/KviKvsEventManager.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/event/KviKvsEventTable.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObject.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObjectClass.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObjectController.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObjectFunctionCall.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObjectFunctionHandler.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/object/KviKvsObjectFunctionHandlerImpl.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_command.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_comment.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_dollar.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_expression.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_lside.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/parser/KviKvsParser_specialCommands.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeAliasFunctionCall.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeAliasSimpleCommand.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeArrayCount.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeArrayElement.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeArrayOrHashElement.cpp.o src/kvirc/CMakeFiles/kvirc.dir/kvs/tree/KviKvsTreeNodeArrayReferenceAssert.cpp.o 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src/kvirc/CMakeFiles/kvirc.dir/kernel/KviUserInput.cpp.o -o src/kvirc/kvirc  -Wl,-rpath,/tmp/work/usr/ports/irc/kvirc/work/.build/src/kvilib:/usr/local/lib:/usr/local/lib/qt5:  src/kvilib/libkvilib.so.5.2.2  /usr/lib/libz.so  /usr/local/lib/libKF5Notifications.so.5.115.0  /usr/local/lib/libKF5Parts.so.5.115.0  /usr/local/lib/libXss.so  /usr/local/lib/libSM.so  /usr/local/lib/libICE.so  /usr/local/lib/libX11.so  /usr/local/lib/libXext.so  /usr/local/lib/libXrender.so  /usr/local/lib/libphonon4qt5.so.4.12.0  /usr/local/lib/libaudiofile.so  /usr/lib/libssl.so  /usr/lib/libcrypto.so  -L/usr/local/lib  -lenchant-2  /usr/local/lib/libtheoraenc.so  /usr/local/lib/libtheoradec.so  /usr/local/lib/libogg.so  /usr/local/lib/libvorbis.so  /usr/local/lib/libvorbisenc.so  /usr/local/lib/qt5/libQt5WebEngineWidgets.so.5.15.16  /usr/local/lib/libKF5XmlGui.so.5.115.0  /usr/local/lib/libKF5KIOWidgets.so.5.115.0  /usr/local/lib/libKF5KIOGui.so.5.115.0  /usr/local/lib/libKF5WindowSystem.so.5.115.0  /usr/local/lib/libX11.so  /usr/local/lib/libKF5KIOCore.so.5.115.0  /usr/local/lib/libKF5Service.so.5.115.0  /usr/local/lib/libKF5JobWidgets.so.5.115.0  /usr/local/lib/libKF5Solid.so.5.115.0  /usr/local/lib/libKF5TextWidgets.so.5.115.0  /usr/local/lib/libKF5ConfigWidgets.so.5.115.0  /usr/local/lib/libKF5I18n.so.5.115.0  /usr/local/lib/libKF5Codecs.so.5.115.0  /usr/local/lib/libKF5Auth.so.5.115.0  /usr/local/lib/libKF5AuthCore.so.5.115.0  /usr/local/lib/libKF5CoreAddons.so.5.115.0  /usr/local/lib/libKF5Completion.so.5.115.0  /usr/local/lib/libKF5WidgetsAddons.so.5.115.0  /usr/local/lib/libKF5ConfigGui.so.5.115.0  /usr/local/lib/libKF5ConfigCore.so.5.115.0  /usr/local/lib/libKF5SonnetUi.so.5.115.0  /usr/local/lib/qt5/libQt5Sql.so.5.15.13  /usr/local/lib/qt5/libQt5Xml.so.5.15.13  /usr/local/lib/qt5/libQt5Concurrent.so.5.15.13  /usr/local/lib/qt5/libQt5DBus.so.5.15.13  /usr/local/lib/qt5/libQt5PrintSupport.so.5.15.13  /usr/local/lib/qt5/libQt5WebEngineCore.so.5.15.16  /usr/local/lib/qt5/libQt5WebChannel.so.5.15.13  /usr/local/lib/qt5/libQt5Positioning.so.5.15.13  /usr/local/lib/qt5/libQt5Quick.so.5.15.13  /usr/local/lib/qt5/libQt5QmlModels.so.5.15.13  /usr/local/lib/qt5/libQt5Qml.so.5.15.13  /usr/local/lib/qt5/libQt5Svg.so.5.15.13  /usr/local/lib/qt5/libQt5X11Extras.so.5.15.13  /usr/local/lib/qt5/libQt5MultimediaWidgets.so.5.15.13  /usr/local/lib/qt5/libQt5Widgets.so.5.15.13  /usr/local/lib/qt5/libQt5Multimedia.so.5.15.13  /usr/local/lib/qt5/libQt5Gui.so.5.15.13  /usr/local/lib/qt5/libQt5Network.so.5.15.13  /usr/local/lib/qt5/libQt5Core.so.5.15.13  -Wl,-rpath-link,/usr/local/lib && cd /tmp/work/usr/ports/irc/kvirc/work/.build/src/kvirc && /usr/local/bin/strip /tmp/work/usr/ports/irc/kvirc/work/.build/src/kvirc/kvirc
ld: error: undefined reference due to --no-allow-shlib-undefined: pthread_create
>>> referenced by src/kvilib/libkvilib.so.5.2.2
c++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

Patch:

--- src/kvilib/CMakeLists.txt.orig
+++ src/kvilib/CMakeLists.txt
@@ -130,6 +130,7 @@ endif()

 add_library(${KVILIB_BINARYNAME} SHARED ${kvilib_SRCS} ${kvilib_MOC_SRCS})
 target_link_libraries(${KVILIB_BINARYNAME} ${LIBS} ${qt_kvirc_modules})
+target_link_libraries(${KVILIB_BINARYNAME} Threads::Threads)

 # Enable C++17
 target_compile_features(${KVILIB_BINARYNAME} PUBLIC cxx_std_17)

Maybe it's specific for FreeBSD (13.3-p2 amd64) and better use this patch:

--- src/kvirc/CMakeLists.txt.orig
+++ src/kvirc/CMakeLists.txt
@@ -280,6 +280,7 @@ endif()
 
 if(CMAKE_HOST_SYSTEM MATCHES "FreeBSD")
        set_target_properties(${KVIRC_BINARYNAME} PROPERTIES LINK_FLAGS -Wl,-export-dynamic)
+       target_link_libraries(${KVILIB_BINARYNAME} Threads::Threads)
        message(STATUS "Patching for FreeBSD...")
 endif()
 

or

--- src/kvilib/CMakeLists.txt.orig
+++ src/kvilib/CMakeLists.txt
@@ -130,6 +130,10 @@ endif()

 add_library(${KVILIB_BINARYNAME} SHARED ${kvilib_SRCS} ${kvilib_MOC_SRCS})
 target_link_libraries(${KVILIB_BINARYNAME} ${LIBS} ${qt_kvirc_modules})
+if(CMAKE_HOST_SYSTEM MATCHES "FreeBSD")
+       target_link_libraries(${KVILIB_BINARYNAME} Threads::Threads)
+       message(STATUS "Patching for FreeBSD...")
+endif()

 # Enable C++17
 target_compile_features(${KVILIB_BINARYNAME} PUBLIC cxx_std_17)

[VVD]

5. Question: with option -DWANT_KDE:BOOL=TRUE kvirc linked with qt5-dbus even if set -DWANT_QTDBUS:BOOL=FALSE - is it bug or feature or environment specific behavior?

[VVD]

@ctrlaltca, thanks!

[ctrlaltca]

5. Question: with option -DWANT_KDE:BOOL=TRUE kvirc linked with qt5-dbus even if set -DWANT_QTDBUS:BOOL=FALSE - is it bug or feature or environment specific behavior?

@VVD : if i get it correctly, the dependency comes from Qt5Gui that needs it: https://www.freshports.org/x11-toolkits/qt5-gui . Possibly some KDE libs explicitly adds it to the linked libraries.

[VVD]

5. Question: with option -DWANT_KDE:BOOL=TRUE kvirc linked with qt5-dbus even if set -DWANT_QTDBUS:BOOL=FALSE - is it bug or feature or environment specific behavior?

@VVD : if i get it correctly, the dependency comes from Qt5Gui that needs it: https://www.freshports.org/x11-toolkits/qt5-gui . Possibly some KDE libs explicitly adds it to the linked libraries.

Weird: if build with -DWANT_KDE:BOOL=FALSE and -DWANT_QTDBUS:BOOL=FALSE then it isn't linked with qt5-dbus.

[VVD]

Thanks!