https://bugs.kde.org/show_bug.cgi?id=387077
Bug ID: 387077
Summary: libkface vs opencv incompatibility: compile error
Product: libkface
Version: unspecified
Platform: Gentoo Packages
OS: Linux
Status: UNCONFIRMED
Severity: critical
Priority: NOR
Component: General
Assignee: imaging-bugs-n...@kde.org
Reporter: fhe...@inbox.lv
Target Milestone: ---
Relevant System: Gentoo, opencv-3.3.0-r4, libkface-17.08.3
The package fails to compile with the following error:
[ 54%] Building CXX object
src/CMakeFiles/KF5KFace.dir/database/core/databasecorebackend.cpp.o
cd /var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3_build/src
&& /usr/bin/x86_64-pc-linux-gnu-g++ -DKF5KFace_EXPORTS -DQT_CORE_LIB
-DQT_GUI_LIB -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_FROM_BYTEARRAY
-DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_SIGNALS_SLOTS_KEYWORDS
-DQT_NO_URL_CAST_FROM_STRING -DQT_SQL_LIB -DQT_USE_FAST_OPERATOR_PLUS
-DQT_USE_QSTRINGBUILDER -DQT_WIDGETS_LIB -DQT_XML_LIB -D_GNU_SOURCE
-D_LARGEFILE64_SOURCE
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3_build/src
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3_build/src/KF5KFace_autogen/include
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3_build/src/..
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/database
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/database/core
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/detection
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph
-I/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/alignment-congealing
-isystem /usr/include/opencv -isystem /usr/include/qt5 -isystem
/usr/include/qt5/QtGui -isystem /usr/include/qt5/QtCore -isystem
/usr/lib64/qt5/mkspecs/linux-g++ -isystem /usr/include/qt5/QtXml -isystem
/usr/include/qt5/QtSql -isystem /usr/include/qt5/QtWidgets -DQT_NO_DEBUG
-DNDEBUG -O2 -march=native -fomit-frame-pointer -pipe -std=c++0x
-fno-operator-names -Wall -Wextra -Wcast-align -Wchar-subscripts
-Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor
-Woverloaded-virtual -Werror=return-type -Wvla -Wdate-time -pedantic
-Wsuggest-override -fexceptions -fPIC -fvisibility=hidden
-fvisibility-inlines-hidden -fPIC -std=gnu++11 -o
CMakeFiles/KF5KFace.dir/database/core/databasecorebackend.cpp.o -c
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/database/core/databasecorebackend.cpp
In file included from
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.cpp:41:0:
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.h:120:10:
warning: ‘virtual void
KFaceIface::LBPHFaceRecognizer::train(cv::InputArrayOfArrays, cv::InputArray)’
can be marked override [-Wsuggest-override]
void train(cv::InputArrayOfArrays src, cv::InputArray labels);
^
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.h:126:10:
warning: ‘virtual void
KFaceIface::LBPHFaceRecognizer::update(cv::InputArrayOfArrays, cv::InputArray)’
can be marked override [-Wsuggest-override]
void update(cv::InputArrayOfArrays src, cv::InputArray labels);
^
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.h:184:12:
warning: ‘virtual double KFaceIface::LBPHFaceRecognizer::getThreshold() const’
can be marked override [-Wsuggest-override]
double getThreshold() const { return m_threshold;
}
^
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.h:185:10:
warning: ‘virtual void KFaceIface::LBPHFaceRecognizer::setThreshold(double)’
can be marked override [-Wsuggest-override]
void setThreshold(double _threshold) { m_threshold =
_threshold; }
^
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.cpp:
In static member function ‘static cv::Ptr<KFaceIface::LBPHFaceRecognizer>
KFaceIface::LBPHFaceRecognizer::create(int, int, int, int, double,
KFaceIface::LBPHFaceRecognizer::PredictionStatistics)’:
/var/tmp/portage/kde-apps/libkface-17.08.3/work/libkface-17.08.3/src/recognition-opencv-lbph/facerec_borrowed.cpp:553:115:
error: invalid new-expression of abstract class type
‘KFaceIface::LBPHFaceRecognizer’
LBPHFaceRecognizer* const fr = new LBPHFaceRecognizer(radius, neighbors,
grid_x, grid_y, threshold, statistics);
-----
Looks to me like it is related to an incompatibility with opencv.
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