Qwt from Windows to Linux Porting

shivaVMC

@sierdzio
I have tried to compile Qt build for Qt_V5.7.1,but I m facing the below error

.obj/qeglfskmsintegration.o:(.data.rel.ro+0x74): undefined reference to `QEGLDeviceIntegration::destroyNativeWindow(void*)'
collect2: error: ld returned 1 exit status

Can I know which plugins/lib are missing or which lib I need to install?

shivaVMC

@sierdzio
When I perform .

./configure -device linux-rasp-pi3-g++ -opengl es2 -confirm-license -opensource -release -nomake examples -skip qtwebview -skip qt3d -skip qtquick1 -skip qtwayland -skip qtvirtualkeyboard -skip qtwebchannel -skip qtwebengine -skip qtscript -skip qtscxml -skip qtspeech -skip qtpurchasing -skip qtgamepad -skip qtserialbus -skip qtlocation -no-use-gold-linker -device-option CROSS_COMPILE=~/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi_QtBuild/sysroot -prefix /usr/local/qt5pi -extprefix ~/raspi_QtBuild/qt5pi -hostprefix ~/raspi_QtBuild/qt5 -v

Note: Also available for Linux: linux-clang linux-icc

Note: Dropped compiler flags '-pthread' when detecting library 'glib'.

Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer'.

Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer_app'.

Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into '/home/user/raspi_QtBuild/qt5pi'.

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.

When I perform --- make -j4

msgbmmain.o qeglfskmsgbmmain.cpp
qeglfskmsgbmwindow.cpp: In member function ‘virtual void QEglFSKmsGbmWindow::resetSurface()’:
qeglfskmsgbmwindow.cpp:58:5: error: ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’ was not declared in this scope
PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC createPlatformWindowSurface = nullptr;
^
qeglfskmsgbmwindow.cpp:58:46: error: expected ‘;’ before ‘createPlatformWindowSurface’
PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC createPlatformWindowSurface = nullptr;
^
qeglfskmsgbmwindow.cpp:61:9: error: ‘createPlatformWindowSurface’ was not declared in this scope
createPlatformWindowSurface = reinterpret_cast<PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC>(
^
qeglfskmsgbmwindow.cpp:61:56: error: expected type-specifier before ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’
createPlatformWindowSurface = reinterpret_cast<PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC>(
^
qeglfskmsgbmwindow.cpp:61:56: error: expected ‘>’ before ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’
qeglfskmsgbmwindow.cpp:61:56: error: expected ‘(’ before ‘PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC’
qeglfskmsgbmwindow.cpp:62:68: error: expected ‘)’ before ‘;’ token
eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT"));
^
qeglfskmsgbmwindow.cpp:65:9: error: ‘createPlatformWindowSurface’ was not declared in this scope
if (createPlatformWindowSurface) {
^
Makefile:3029: recipe for target '.obj/qeglfskmsgbmwindow.o' failed
make[7]: *** [.obj/qeglfskmsgbmwindow.o] Error 1
make[7]: *** Waiting for unfinished jobs....
make[7]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms'
Makefile:72: recipe for target 'sub-eglfs_kms-make_first' failed
make[6]: *** [sub-eglfs_kms-make_first] Error 2
make[6]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src/plugins/platforms/eglfs/deviceintegration'
Makefile:104: recipe for target 'sub-deviceintegration-make_first-ordered' failed
make[5]: *** [sub-deviceintegration-make_first-ordered] Error 2
make[5]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src/plugins/platforms/eglfs'
Makefile:125: recipe for target 'sub-eglfs-make_first' failed
make[4]: *** [sub-eglfs-make_first] Error 2
make[4]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src/plugins/platforms'
Makefile:102: recipe for target 'sub-platforms-make_first' failed
make[3]: *** [sub-platforms-make_first] Error 2
make[3]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src/plugins'
Makefile:776: recipe for target 'sub-plugins-make_first' failed
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase/src'
Makefile:48: recipe for target 'sub-src-make_first' failed
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory '/home/user/raspi_QtBuild/qt-everywhere-src-5.11.1/qtbase'
Makefile:70: recipe for target 'module-qtbase-make_first' failed
make: *** [module-qtbase-make_first] Error 2

sierdzio

Why do you say you're compiling Qt 5.7.1 when the output you paste indicates 5.11.1?

Anyway, I've never seen that error, I don't know how to fix it.

shivaVMC

@sierdzio
Qt_v5.7.1 .tar.xz file was already with me ,till Qt_v5.11.1 gets dowloaded I have compiled Qt5.7.1..... For both the version different errors I m facing as mentioned above

sierdzio

@shivaVMC said in Qwt from Windows to Linux Porting:

PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC

This comes from EGL headers. You probably don't have all Qt dependencies installed in your sysroot.

Install necessary dependencies. Try with sudo apt build-dep qt5-qmake qt5-default on your Raspberry Pi. You may also try sudo apt install "^libxcb.*" libx11-xcb-dev libglu1-mesa-dev libxrender-dev libatspi2.0-dev libdbus-1-dev.
Update your sysroot and fix symlinks.
Recompile Qt. Make sure to check configure output that it says EGL support is on.

shivaVMC

@sierdzio
Hi ,
Finally it got compiled...I m success on compiling and installing Qt-V5.11.1
Now,please suggest me that which qmake shall I take to compile qwt-6.1.3

I m finding two qmake

/home/user/raspi_QtBuild/Qtver-5.11.1/qtbase/bin/qmake
/home/user/raspi_QtBuild/qt5/bin/

Thanks In advance for your help& support.

sierdzio

@shivaVMC said in Qwt from Windows to Linux Porting:

-hostprefix ~/raspi_QtBuild/qt5

This is your host prefix, so you should use the qmake from /home/user/raspi_QtBuild/qt5/bin/.

You can verify which Qt version that qmake comes from by running:

/home/user/raspi_QtBuild/qt5/bin/qmake -version

shivaVMC

@sierdzio
Everything went fine,but when I m performing
/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile Myproject.pro
.qmake.stash is created

then when I perform
make -j4
I get below error's ,please suggest on this

/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference to `operator delete(void*, unsigned int)@CXXABI_1.3.9'

/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference to `qTriangulate(QVectorPath const&, QTransform const&, double)@Qt_5_PRIVATE_API'
collect2: error: ld returned 1 exit status

I m head cracking on this,even I did on raspberrypi3 board

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install mesa-utils

sudo raspi-config
Select 7 Advance Options
A6 GL Drivers
selected GL (Full KMS) Desktop Drivers
Ok-> Finish->Reboot.
My Screen went black with cursor blinking.

Any other commands,that I can do to get support for this libQt5OpenGL...This is the only step I stuck to complete the things of my project

sierdzio

Hm, I've never seen this error message, so I can only guess.

Can you show build output (for Qwt) - I'd like to see at least one line calling the compiler and one line calling the linker. Need to know if all the compilation flags are correct.

shivaVMC

@sierdzio

/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile qwt.pro
User@lattitude-3480:~/Downloads/QWT/qwt-6.1.3$ make -j4
cd src/ && ( test -e Makefile || /home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile /home/user/Downloads/QWT/qwt-6.1.3/src/src.pro ) && make -f Makefile
make[1]: Entering directory '/home/user/Downloads/QWT/qwt-6.1.3/src'
/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile src.pro
compiling qwt_abstract_scale_draw.cpp
compiling qwt_clipper.cpp
compiling qwt_color_map.cpp
compiling qwt_column_symbol.cpp
compiling qwt_date_scale_draw.cpp
compiling qwt_dyngrid_layout.cpp
compiling qwt_event_pattern.cpp
compiling qwt_graphic.cpp
compiling qwt_interval_symbol.cpp
compiling qwt_magnifier.cpp
compiling qwt_null_paintdevice.cpp
compiling qwt_painter.cpp
compiling qwt_painter_command.cpp
compiling qwt_panner.cpp
compiling qwt_picker.cpp
compiling qwt_picker_machine.cpp
compiling qwt_round_scale_draw.cpp
compiling qwt_scale_draw.cpp
compiling qwt_spline.cpp
compiling qwt_symbol.cpp
compiling qwt_text_engine.cpp
compiling qwt_text_label.cpp
compiling qwt_text.cpp
compiling qwt_widget_overlay.cpp
compiling qwt_curve_fitter.cpp
compiling qwt_abstract_legend.cpp
compiling qwt_legend.cpp
compiling qwt_legend_data.cpp
compiling qwt_legend_label.cpp
compiling qwt_plot.cpp
compiling qwt_plot_renderer.cpp
compiling qwt_plot_xml.cpp
compiling qwt_plot_axis.cpp
compiling qwt_plot_curve.cpp
compiling qwt_plot_dict.cpp
compiling qwt_plot_directpainter.cpp
compiling qwt_plot_grid.cpp
compiling qwt_plot_histogram.cpp
compiling qwt_plot_item.cpp
compiling qwt_plot_abstract_barchart.cpp
compiling qwt_plot_barchart.cpp
compiling qwt_plot_multi_barchart.cpp
compiling qwt_plot_intervalcurve.cpp
compiling qwt_plot_zoneitem.cpp
compiling qwt_plot_tradingcurve.cpp
compiling qwt_plot_spectrogram.cpp
compiling qwt_plot_spectrocurve.cpp
compiling qwt_plot_scaleitem.cpp
compiling qwt_plot_legenditem.cpp
compiling qwt_plot_seriesitem.cpp
compiling qwt_plot_shapeitem.cpp
compiling qwt_plot_marker.cpp
compiling qwt_plot_textlabel.cpp
compiling qwt_plot_layout.cpp
compiling qwt_plot_canvas.cpp
compiling qwt_plot_panner.cpp
compiling qwt_plot_rasteritem.cpp
compiling qwt_plot_picker.cpp
compiling qwt_plot_zoomer.cpp
compiling qwt_plot_magnifier.cpp
compiling qwt_plot_rescaler.cpp
compiling qwt_point_mapper.cpp
compiling qwt_raster_data.cpp
compiling qwt_matrix_raster_data.cpp
compiling qwt_scale_widget.cpp
compiling qwt_plot_svgitem.cpp
compiling qwt_plot_glcanvas.cpp
compiling qwt_abstract_slider.cpp
compiling qwt_abstract_scale.cpp
compiling qwt_arrow_button.cpp
compiling qwt_analog_clock.cpp
compiling qwt_compass.cpp
compiling qwt_compass_rose.cpp
compiling qwt_counter.cpp
compiling qwt_dial.cpp
compiling qwt_dial_needle.cpp
compiling qwt_knob.cpp
compiling qwt_slider.cpp
compiling qwt_thermo.cpp
compiling qwt_wheel.cpp
moc qwt_dyngrid_layout.h
moc qwt_magnifier.h
moc qwt_panner.h
moc qwt_picker.h
moc qwt_text_label.h
moc qwt_abstract_legend.h
moc qwt_legend.h
moc qwt_legend_label.h
moc qwt_plot.h
moc qwt_plot_renderer.h
moc qwt_plot_canvas.h
moc qwt_plot_panner.h
moc qwt_plot_picker.h
moc qwt_plot_zoomer.h
moc qwt_plot_magnifier.h
moc qwt_sampling_thread.h
moc qwt_scale_widget.h
moc qwt_plot_glcanvas.h
moc qwt_abstract_slider.h
moc qwt_abstract_scale.h
moc qwt_analog_clock.h
moc qwt_compass.h
moc qwt_counter.h
moc qwt_dial.h
moc qwt_knob.h
moc qwt_slider.h
moc qwt_thermo.h
moc qwt_wheel.h
compiling moc/moc_qwt_dyngrid_layout.cpp
compiling moc/moc_qwt_magnifier.cpp
compiling moc/moc_qwt_panner.cpp
compiling moc/moc_qwt_picker.cpp
compiling moc/moc_qwt_text_label.cpp
compiling moc/moc_qwt_abstract_legend.cpp
compiling moc/moc_qwt_legend.cpp
compiling moc/moc_qwt_legend_label.cpp
compiling moc/moc_qwt_plot.cpp
compiling moc/moc_qwt_plot_renderer.cpp
compiling moc/moc_qwt_plot_canvas.cpp
compiling moc/moc_qwt_plot_panner.cpp
compiling moc/moc_qwt_plot_picker.cpp
compiling moc/moc_qwt_plot_zoomer.cpp
compiling moc/moc_qwt_plot_magnifier.cpp
compiling moc/moc_qwt_sampling_thread.cpp
compiling moc/moc_qwt_scale_widget.cpp
compiling moc/moc_qwt_plot_glcanvas.cpp
compiling moc/moc_qwt_abstract_slider.cpp
compiling moc/moc_qwt_abstract_scale.cpp
compiling moc/moc_qwt_analog_clock.cpp
compiling moc/moc_qwt_compass.cpp
compiling moc/moc_qwt_counter.cpp
compiling moc/moc_qwt_dial.cpp
compiling moc/moc_qwt_knob.cpp
compiling moc/moc_qwt_slider.cpp
compiling moc/moc_qwt_thermo.cpp
compiling moc/moc_qwt_wheel.cpp
rm -f libqwt.so.6.1.3 libqwt.so libqwt.so.6 libqwt.so.6.1
linking ../lib/libqwt.so.6.1.3
ln -s libqwt.so.6.1.3 libqwt.so
ln -s libqwt.so.6.1.3 libqwt.so.6
ln -s libqwt.so.6.1.3 libqwt.so.6.1
rm -f ../lib/libqwt.so.6.1.3
mv -f libqwt.so.6.1.3 ../lib/
rm -f ../lib/libqwt.so
rm -f ../lib/libqwt.so.6
rm -f ../lib/libqwt.so.6.1
mv -f libqwt.so ../lib/
mv -f libqwt.so.6 ../lib/
mv -f libqwt.so.6.1 ../lib/
make[1]: Leaving directory '/home/user/Downloads/QWT/qwt-6.1.3/src'
cd textengines/ && ( test -e Makefile || /home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile /home/user/Downloads/QWT/qwt-6.1.3/textengines/textengines.pro ) && make -f Makefile
make[1]: Entering directory '/home/user/Downloads/QWT/qwt-6.1.3/textengines'
/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile textengines.pro
make[1]: Nothing to be done for 'first'.
make[1]: Leaving directory '/home/user/Downloads/QWT/qwt-6.1.3/textengines'
cd doc/ && ( test -e Makefile || /home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile /home/user/Downloads/QWT/qwt-6.1.3/doc/doc.pro ) && make -f Makefile
make[1]: Entering directory '/home/user/Downloads/QWT/qwt-6.1.3/doc'
/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile doc.pro
make[1]: Nothing to be done for 'first'.
make[1]: Leaving directory '/home/user/Downloads/QWT/qwt-6.1.3/doc'

sierdzio

Oh, they are not printing the build commands in Qwt :-( Don't they have some verbose mode or something?

If yes, please use it and paste the output here. If no, then please paste the beginning of Makefile that is produced - the section where all compilers and flags are set up.

shivaVMC

@sierdzio

Beginning lines of Makefile are as below

MAKEFILE = Makefile

first: make_first
QMAKE = /home/user/raspi_QtBuild/qt5/bin/qmake
DEL_FILE = rm -f
CHK_DIR_EXISTS= test -d
MKDIR = mkdir -p
COPY = cp -f
COPY_FILE = cp -f
COPY_DIR = cp -f -R
INSTALL_FILE = install -m 644 -p
INSTALL_PROGRAM = install -m 755 -p
INSTALL_DIR = cp -f -R
QINSTALL = /home/user/raspi_QtBuild/qt5/bin/qmake -install qinstall
QINSTALL_PROGRAM = /home/user/raspi_QtBuild/qt5/bin/qmake -install qinstall -exe
DEL_FILE = rm -f
SYMLINK = ln -f -s
DEL_DIR = rmdir
MOVE = mv -f
TAR = tar -cf
COMPRESS = gzip -9f
DISTNAME = qwt1.0.0
DISTDIR = /home/user/Downloads/QWT/qwt-6.1.3/.tmp/qwt1.0.0
SUBTARGETS =
sub-src
sub-textengines
sub-doc

sub-src-qmake_all: FORCE
@test -d src/ || mkdir -p src/
cd src/ && $(QMAKE) -o Makefile /home/user/Downloads/QWT/qwt-6.1.3/src/src.pro
cd src/ && $(MAKE) -f Makefile qmake_all

sierdzio

It still does not list the compiler anywhere... look deeper :-) I'm basically trying to verify whether qmake is building for cross-compilation here or not. Because it should.

Look for CC = or CXX = or something.

shivaVMC

@sierdzio
This is the beginning of Makefile created by my PROJECT, when I pass below command
/home/user/raspi_QtBuild/qt5/bin/qmake -o Makefile PROJECT.pro

MAKEFILE = Makefile

####### Compiler, tools and options

CC = /home/user/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-gcc
CXX = /home/user/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++
DEFINES = -DQWT_NO_SVG -DQWT_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_SVG_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB
CFLAGS = -march=armv8-a -mtune=cortex-a53 -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard --sysroot=/home/user/raspi_QtBuild/sysroot -O2 -Wall -W -D_REENTRANT -fPIC $(DEFINES)
CXXFLAGS = -march=armv8-a -mtune=cortex-a53 -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard --sysroot=/home/user/raspi_QtBuild/sysroot -O2 -std=gnu++11 -Wall -W -D_REENTRANT -fPIC $(DEFINES)
INCPATH = -I. -Isrc -I/usr/local/qwt-6.1.3/include -I../../../../raspi_QtBuild/qt5pi/include -I../../../../raspi_QtBuild/qt5pi/include/QtPrintSupport -I../../../../raspi_QtBuild/qt5pi/include/QtSvg -I../../../../raspi_QtBuild/qt5pi/include/QtWidgets -I../../../../raspi_QtBuild/qt5pi/include/QtGui -I../../../../raspi_QtBuild/qt5pi/include/QtNetwork -I../../../../raspi_QtBuild/qt5pi/include/QtConcurrent -I../../../../raspi_QtBuild/qt5pi/include/QtCore -I. -I=/opt/vc/include -I=/opt/vc/include/interface/vcos/pthreads -I=/opt/vc/include/interface/vmcs_host/linux -I. -I../../../../raspi/qt5/mkspecs/devices/linux-rpi3-g++
QMAKE = /home/user/raspi_QtBuild/qt5/bin/qmake
DEL_FILE = rm -f
CHK_DIR_EXISTS= test -d
MKDIR = mkdir -p
COPY = cp -f
COPY_FILE = cp -f
COPY_DIR = cp -f -R
INSTALL_FILE = install -m 644 -p
INSTALL_PROGRAM = install -m 755 -p
INSTALL_DIR = cp -f -R
QINSTALL = /home/user/raspi_QtBuild/qt5/bin/qmake -install qinstall
QINSTALL_PROGRAM = /home/user/raspi_QtBuild/qt5/bin/qmake -install qinstall -exe
DEL_FILE = rm -f
SYMLINK = ln -f -s
DEL_DIR = rmdir
MOVE = mv -f
TAR = tar -cf
COMPRESS = gzip -9f
DISTNAME = PROJECT1.0.0
DISTDIR = /home/user/Desktop/proj/raspi_proj/PROJECT_V_00.00.007/.tmp/PROJECT1.0.0
LINK = /home/user/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++
LFLAGS = -Wl,-rpath-link,/home/user/raspi_QtBuild/sysroot/opt/vc/lib -Wl,-rpath-link,/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/home/user/raspi_QtBuild/sysroot/lib/arm-linux-gnueabihf -mfloat-abi=hard --sysroot=/home/user/raspi_QtBuild/sysroot -Wl,-O1 -Wl,-rpath,/usr/local/qt5pi/lib
LIBS = $(SUBLIBS) -L=/opt/vc/lib -L/home/user/Desktop/proj/raspi_proj/PROJECT_V_00.00.007/lib -L/usr/local/qwt-6.1.3/lib -lqwt -L/home/user/raspi_QtBuild/qt5pi/lib -lQt5PrintSupport -lQt5Svg -lQt5Widgets -lQt5Gui -lQt5Network -lQt5Concurrent -lQt5Core -L/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf -lGLESv2 -lpthread
AR = /home/user/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-ar cqs
RANLIB =
SED = sed
STRIP = /home/user/raspi_QtBuild/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-strip

sierdzio

@shivaVMC said in Qwt from Windows to Linux Porting:

This is the beginning of Makefile created by my PROJECT, when I pass below command

Ooops I misunderstood :-) I thought you had errors when compiling Qwt, but now I see you have them when compiling your project. OK.

Compiler setup looks OK.

So you have everything correctly cross-compiled but still it complains about:

/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference to `operator delete(void*, unsigned int)@CXXABI_1.3.9'

/home/user/raspi_QtBuild/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference to `qTriangulate(QVectorPath const&, QTransform const&, double)@Qt_5_PRIVATE_API'

Hm :-/ I'm out of ideas to be honest. Looks like Qt has disabled some part of the code, or there is ABI mismatch but both these possibilities seem weird.

shivaVMC

@sierdzio

Yeah,everything correctly cross-compiled but still it complains OpenGL issue.
So,next what How shall I proceed ?
Any alternate solution for this bug.

SGaist

Hi,

Might be a silly question but are you sure you are using the same Qt version of building your application that was used to build Qwt ?