Qwt from Windows to Linux Porting

sierdzio

@shivaVMC said in Qwt from Windows to Linux Porting:

I m following the link https://wiki.qt.io/Building_Qt_5_from_Git and your mentioned short script..I will get back,if any issue I m facing.

Does not matter how you get Qt sources (from git like in your link or from archive like in my script), the result will be the same. Just remember to add all those -skip flags to configure line (and keep your sysroot and toolchain from the EGLFS guide).

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 ?