Under MacOS Hight Sierra, with Xcode 9.1 (9B55), and current Macport chain, compiling whole Qt5 5.8 + KF5 5.49 frameworks work as expected, including libksane. But there is a digiKam linking stage which fail with libksane : [ 77%] Linking CXX shared library libdigikamcore.dylib [ 77%] Building CXX object core/app/CMakeFiles/digikamgui_src.dir/views/tableview/tableview_treeview_delegate.cpp.o [ 77%] Building CXX object core/app/CMakeFiles/digikamgui_src.dir/views/tableview/tableview_column_configuration_dialog.cpp.o In file included from /Users/gilles/Devel/6.X/core/app/utils/contextmenuhelper.cpp:58: In file included from /Users/gilles/Devel/6.X/core/app/main/digikamapp.h:39: /opt/digikam/include/KF5/Solid/Solid/SolidNamespace:1:10: warning: non-portable path to file '"Solid/solidnamespace.h"'; specified path differs in case from file name on disk [-Wnonportable-include-path] #include "solid/solidnamespace.h" ^~~~~~~~~~~~~~~~~~~~~~~~ "Solid/solidnamespace.h" Undefined symbols for architecture x86_64: "KSaneIface::KSaneWidget::openDevice(QString const&)", referenced from: Digikam::KSaneAction::activate(QString const&, QString const&) in ksaneaction.cpp.o "KSaneIface::KSaneWidget::closeDevice()", referenced from: Digikam::ScanDialog::slotDialogFinished() in scandialog.cpp.o "KSaneIface::KSaneWidget::selectDevice(QWidget*)", referenced from: Digikam::KSaneAction::activate(QString const&, QString const&) in ksaneaction.cpp.o "KSaneIface::KSaneWidget::KSaneWidget(QWidget*)", referenced from: Digikam::KSaneAction::activate(QString const&, QString const&) in ksaneaction.cpp.o "KSaneIface::KSaneWidget::make() const", referenced from: Digikam::ScanDialog::slotSaveImage(QByteArray&, int, int, int, int) in scandialog.cpp.o "KSaneIface::KSaneWidget::model() const", referenced from: Digikam::ScanDialog::slotSaveImage(QByteArray&, int, int, int, int) in scandialog.cpp.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [core/app/libdigikamcore.6.0.0.dylib] Error 1 make[1]: *** [core/app/CMakeFiles/digikamcore.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... There is no linking problem if i disable libksane support in digiKam. Note : this problem appear since i update KF5 to 5.49. There is no problem with KF5.5.45. So it's probably a problem relevant of ECM or something new is missing in libksane CmakeLists.txt Gilles Caulier
Note : linksane is compiled in digiKam MacOS bundle using this cmake rules : https://cgit.kde.org/digikam.git/tree/project/bundles/3rdparty/ext_libksane/CMakeLists.txt#n45 Gilles Caulier
Note : the libksane version compiled with digiKam MacOS bundle is the official 18.08.0 Gilles Caulier
The error come from the digiKam MacOS package build script. Sorry for the noise. Gilles Caulier