https://bugs.kde.org/show_bug.cgi?id=416704
--- Comment #18 from caulier.gil...@gmail.com ---
And now, the compilation is broken imediatly about forward declaration of Qt
C++ class. I don't understand why, even if C+17 is mandatory to compile client
Qt6 code. This is the trace :
[root@localhost build]# make
[ 0%] Built target digikam-gitversion
[ 0%] Built target digikam-builddate
[ 0%] Automatic MOC for target core_dimg_obj
[ 0%] Built target core_dimg_obj_autogen
[ 0%] Building CXX object
core/libs/dimg/CMakeFiles/core_dimg_obj.dir/core_dimg_obj_autogen/mocs_compilation.cpp.o
[ 0%] Building CXX object
core/libs/dimg/CMakeFiles/core_dimg_obj.dir/loaders/dimgloader.cpp.o
In file included from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:41,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/home/gilles/Documents/7.x/core/libs/threads/dynamicthread.h:38:7: error:
template argument required for ‘class QMutexLocker’
38 | class QMutexLocker;
| ^~~~~~~~~~~~
/home/gilles/Documents/7.x/core/libs/threads/dynamicthread.h:151:16: error:
template placeholder type ‘QMutexLocker<...auto...>’ must be followed by a
simple declarator-id
151 | void start(QMutexLocker& locker);
| ^~~~~~~~~~~~
In file included from /usr/include/QtCore/QMutex:1,
from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:31,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/usr/include/QtCore/qmutex.h:238:7: note: ‘template<class Mutex> class
QMutexLocker’ declared here
238 | class QMutexLocker
| ^~~~~~~~~~~~
In file included from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:41,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/home/gilles/Documents/7.x/core/libs/threads/dynamicthread.h:152:15: error:
template placeholder type ‘QMutexLocker<...auto...>’ must be followed by a
simple declarator-id
152 | void stop(QMutexLocker& locker);
| ^~~~~~~~~~~~
In file included from /usr/include/QtCore/QMutex:1,
from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:31,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/usr/include/QtCore/qmutex.h:238:7: note: ‘template<class Mutex> class
QMutexLocker’ declared here
238 | class QMutexLocker
| ^~~~~~~~~~~~
In file included from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:41,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/home/gilles/Documents/7.x/core/libs/threads/dynamicthread.h:153:15: error:
template placeholder type ‘QMutexLocker<...auto...>’ must be followed by a
simple declarator-id
153 | void wait(QMutexLocker& locker);
| ^~~~~~~~~~~~
In file included from /usr/include/QtCore/QMutex:1,
from
/home/gilles/Documents/7.x/core/libs/threadimageio/fileio/loadsavethread.h:31,
from /home/gilles/Documents/7.x/core/libs/dimg/dimg_p.h:82,
from
/home/gilles/Documents/7.x/core/libs/dimg/loaders/dimgloader.cpp:40:
/usr/include/QtCore/qmutex.h:238:7: note: ‘template<class Mutex> class
QMutexLocker’ declared here
238 | class QMutexLocker
| ^~~~~~~~~~~~
make[2]: *** [core/libs/dimg/CMakeFiles/core_dimg_obj.dir/build.make:90:
core/libs/dimg/CMakeFiles/core_dimg_obj.dir/loaders/dimgloader.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:4834:
core/libs/dimg/CMakeFiles/core_dimg_obj.dir/all] Error 2
make: *** [Makefile:136: all] Error 2
[root@localhost build]#
If i insert "#include <QMutexLocker>" instead forward declaration "class
QMutexLocker", the compilation pass until the next similar error in another
place...
Gilles
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