Issues when making a native build of Qt 5.7 on a Raspberry Pi 3 with RaspBian Wheezy

PALYGAP

I am trying to build Qt 5.7.0 on a raspberry pi 3 with Raspbian Wheezy but I am stuck on a linking issue after sorting out a few previous issues.

CONTEXT
The LINUX/Rasbian version infos are :

cat /proc/version
Linux version 4.4.13-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611) ) #894 SMP Mon Jun 13 13:13:27 BST 2016

lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 7.11 (wheezy)
Release: 7.11
Codename: wheezy

I installed the Qt sources in the directory /home/pi/Qt.5.7.0-src with
tar zxvf ~/qt-everywhere-opensource-src-5.7.0.tar.gz

I used the following command to configure the build :
./configure -static -opensource -confirm-license -nomake examples -no-openssl -no-opengl -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=/usr/bin/ -make libs

I have 2 other version on Qt. One (Qt4.8.7) was nativelly compiled on the RPi

SOLVED ISSUES
To solve a first compiling issue I had to install GCC and G++ 4.7 and set it as the default GCC compiler :
$ sudo apt-get install gcc-4.7 g++-4.7
$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.6
$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.7 40 --slave /usr/bin/g++ g++ /usr/bin/g++-4.7
Then run the the command and select gcc-4.7.
$ sudo update-alternatives --config gcc

To solve a second issue :
In file included from qxcbclipboard.cpp:43:0:
qxcbscreen.h:49:26: fatal error: xcb/xinerama.h: Aucun fichier ou dossier de ce type
compilation terminated.
Makefile.xcb_qpa_lib:2400: recipe for target '.obj/qxcbclipboard.o' failed
make[6]: *** [.obj/qxcbclipboard.o] Error 1

I had to install Xinerama :
sudo apt-get install libxcb-xinerama0 libxcb-xinerama0-dev
./sysroot-relativelinks.py sysroot
⇒ fixed the probem

I had a third compiling issue which I solved by removing the qtxmlpatterns and qtmacextras packages from the build configuration. I had to run th configuration again :
./configure -static -opensource -confirm-license -nomake examples -no-openssl -no-opengl -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=/usr/bin/ -make libs
-skip qtxmlpatterns -skip qtmacextras

CURRENT ISSUE
I am now stuck with the following issue when making Qt. Running « make –j3 » produced the following messages :

cd qtbase/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/qtbase.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
make[1]: Entering directory '/home/pi/Qt5.7.0-src/qtbase'
cd src/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/src.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
cd qmake/ && ( test -e Makefile.qmake-aux || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/qmake/qmake-aux.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile.qmake-aux ) && make -f Makefile.qmake-aux 
make[2]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/qmake'
make[2]: Nothing to be done for 'first'.
make[2]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/qmake'
make[2]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src'
cd corelib/ && ( test -e Makefile.qtzlib || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/corelib/qtzlib.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile.qtzlib ) && make -f Makefile.qtzlib 
cd tools/bootstrap/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/tools/bootstrap/bootstrap.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
cd 3rdparty/pcre/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/3rdparty/pcre/pcre.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
cd 3rdparty/freetype/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/3rdparty/freetype/freetype.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
make[3]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src/corelib'
make[3]: Nothing to be done for 'first'.
make[3]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/corelib'
make[3]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src/3rdparty/pcre'
make[3]: Nothing to be done for 'first'.

… more « browsing » messages … and then

/home/pi/Qt5.7.0-src/qtbase/bin/qmake 
-qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf 
-o Makefile qml.pro

/usr/bin/g++ -Wl,-rpath-link,/opt/vc/lib 
-Wl,-rpath-link,/usr/lib/arm-linux-gnueabihf 
-Wl,-rpath-link,/lib/arm-linux-gnueabihf 
-mfloat-abi=hard 
-Wl,--gc-sections 
-Wl,-O1 
-Wl,--enable-new-dtags 
-o ../../bin/qml .obj/main.o .obj/qml_qml_plugin_import.o .obj/qml_plugin_import.o .obj/qrc_qml.o .obj/moc_conf.o   
-L/home/pi/Qt5.7.0-src/qtdeclarative/lib 
-L/home/pi/Qt5.7.0-src/qtbase/lib 
-lQt5Widgets
-L/home/pi/Qt5.7.0-src/qtdeclarative/plugins/qmltooling 
-lqmldbg_debugger
-lqmldbg_local 
-lqmldbg_native 
-lqmldbg_profiler 
-lqmldbg_server 
-lQt5PacketProtocol 
-lqmldbg_tcp 
-lQt5Qml 
-L/home/pi/Qt5.7.0-src/qtbase/plugins/bearer 
-lqconnmanbearer 
-lqgenericbearer 
-lqnmbearer 
-lQt5Network 
-lQt5DBus 
-L/home/pi/Qt5.7.0-src/qtimageformats/plugins/imageformats -lqdds -lqicns -lqtga -lqtiff -lqwbmp -lqwebp 
-L/home/pi/Qt5.7.0-src/qtbase/plugins/imageformats -lqico -lQt5Gui -ljpeg -lpng -lqtharfbuzzng -lQt5Core -lz -licui18n -licuuc -licudata -lqtpcre -lm -ldl -lrt -lpthread

This issue is that after this command, tons of lot of messages saying ("référence indéfinie vers" translate to "undefined reference to") :

/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qapplication.o): dans la fonction « QApplication::aboutQt() »:
qapplication.cpp:(.text+0x1720): référence indéfinie vers « QMessageBox::aboutQt(QWidget*, QString const&) »

/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qwidget.o): dans la fonction « QWidget::event(QEvent*) »:
qwidget.cpp:(.text+0x13a30): référence indéfinie vers « QMenu::exec(QList<QAction*>, QPoint const&, QAction*, QWidget*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qwindowcontainer.o): dans la fonction « QWindowContainer::parentWasChanged(QWidget*) »:
qwindowcontainer.cpp:(.text+0x868): référence indéfinie vers « QMdiSubWindow::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qwindowcontainer.o): dans la fonction « QWindowContainer::event(QEvent*) »:
qwindowcontainer.cpp:(.text+0xf54): référence indéfinie vers « QMdiSubWindow::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qstylesheetstyle.o): dans la fonction « QStyleSheetStyle::nativeFrameWidth(QWidget const*) »:
qstylesheetstyle.cpp:(.text+0x2808): référence indéfinie vers « QMenu::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qstylesheetstyle.o): dans la fonction « QStyleSheetStyle::polish(QWidget*) »:
qstylesheetstyle.cpp:(.text+0x18024): référence indéfinie vers « QMdiSubWindow::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qabstractspinbox.o): dans la fonction « QAbstractSpinBox::contextMenuEvent(QContextMenuEvent*) »:
qabstractspinbox.cpp:(.text+0x215c): référence indéfinie vers « QMenu::addSeparator() »
qabstractspinbox.cpp:(.text+0x21b4): référence indéfinie vers « QMenu::addAction(QString const&) »
qabstractspinbox.cpp:(.text+0x2248): référence indéfinie vers « QMenu::addAction(QString const&) »
qabstractspinbox.cpp:(.text+0x22b0): référence indéfinie vers « QMenu::addSeparator() »
qabstractspinbox.cpp:(.text+0x22f4): référence indéfinie vers « QMenu::exec(QPoint const&, QAction*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qcombobox.o): dans la fonction « QComboBoxPrivateContainer::topMargin() const »:
qcombobox.cpp:(.text+0x13b4): référence indéfinie vers « QTableView::showGrid() const »
qcombobox.cpp:(.text+0x13cc): référence indéfinie vers « QTableView::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qcombobox.o): dans la fonction « QComboBoxPrivateContainer::spacing() const »:
qcombobox.cpp:(.text+0x141c): référence indéfinie vers « QTableView::showGrid() const »
qcombobox.cpp:(.text+0x1434): référence indéfinie vers « QTableView::staticMetaObject »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qcombobox.o): dans la fonction « QComboBoxPrivate::updateViewContainerPaletteAndOpacity() »:
qcombobox.cpp:(.text+0x3208): référence indéfinie vers « QMenu::QMenu(QWidget*) »
qcombobox.cpp:(.text+0x3244): référence indéfinie vers « QMenu::~QMenu() »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qlabel.o): dans la fonction « QLabel::contextMenuEvent(QContextMenuEvent*) »:
qlabel.cpp:(.text+0x4028): référence indéfinie vers « QMenu::popup(QPoint const&, QAction*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qlineedit.o): dans la fonction « QLineEdit::createStandardContextMenu() »:
qlineedit.cpp:(.text+0x539c): référence indéfinie vers « QMenu::QMenu(QWidget*) »
qlineedit.cpp:(.text+0x550c): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x5740): référence indéfinie vers « QMenu::isEmpty() const »
qlineedit.cpp:(.text+0x57f8): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x5cc4): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x5f04): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x6028): référence indéfinie vers « QMenu::isEmpty() const »
qlineedit.cpp:(.text+0x6038): référence indéfinie vers « QMenu::addSeparator() »
qlineedit.cpp:(.text+0x6054): référence indéfinie vers « QMenu::addSeparator() »
qlineedit.cpp:(.text+0x6078): référence indéfinie vers « QMenu::addMenu(QMenu*) »
qlineedit.cpp:(.text+0x62cc): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x6568): référence indéfinie vers « QMenu::addAction(QString const&) »
qlineedit.cpp:(.text+0x6758): référence indéfinie vers « QMenu::addSeparator() »
qlineedit.cpp:(.text+0x6820): référence indéfinie vers « QMenu::addAction(QString const&) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qlineedit.o): dans la fonction « QLineEdit::contextMenuEvent(QContextMenuEvent*) »:
qlineedit.cpp:(.text+0x70c4): référence indéfinie vers « QMenu::popup(QPoint const&, QAction*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qmainwindow.o): dans la fonction « QMainWindow::contextMenuEvent(QContextMenuEvent*) »:
qmainwindow.cpp:(.text+0x27c): référence indéfinie vers « QMenu::isEmpty() const »
qmainwindow.cpp:(.text+0x340): référence indéfinie vers « QMenu::popup(QPoint const&, QAction*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qmainwindow.o): dans la fonction « QMainWindow::createPopupMenu() »:
qmainwindow.cpp:(.text+0x1610): référence indéfinie vers « QMenu::QMenu(QWidget*) »
qmainwindow.cpp:(.text+0x1668): référence indéfinie vers « QMenu::addSeparator() »
qmainwindow.cpp:(.text+0x18bc): référence indéfinie vers « QMenu::QMenu(QWidget*) »
/home/pi/Qt5.7.0-src/qtbase/lib/libQt5Widgets.a(qmenubar.o): dans la fonction « QMenuBar::addMenu(QString const&) »:
qmenubar.cpp:(.text+0xb38): référence indéfinie vers « QMenu::QMenu(QString const&, QWidget*) »
qmenubar.cpp:(.text+0xb40): référence indéfinie vers « QMenu::menuAction() const »
/home/pi/Qt
... and so on …

are produced.

NEED HELP
Anybody has an idea why these message are produced ? Could it be an interaction with the other Qt version installed ? I tried to change the bash PATH from /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games »
to
/home/pi/Qt5.7.0-src/qtbase/lib/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
but that did now solve the problem.

P.S. the printenv command list the following environnement variables :

TERM=xterm-256color
SHELL=/bin/bash
SSH_CLIENT=192.168.1.20 58297 22
SSH_TTY=/dev/pts/0
USER=pi
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:
MAIL=/var/mail/pi
PATH=/home/pi/Qt5.7.0-src/qtbase/lib/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
PWD=/home/pi
LANG=fr_FR.UTF-8
SHLVL=1
HOME=/home/pi
LOGNAME=pi
SSH_CONNECTION=192.168.1.20 58297 192.168.1.156 22
DISPLAY=localhost:10.0
_=/usr/bin/printenv

PALYGAP

The problem I had actually "disappeared" after doing a "make clean" and re-doing a "make install".

Next issue was when I configured Qt Creator (2.something) with the new Qt. It said "The default mkspec symlink is broken"
I solved it by making a simlink in the install dir (/usr/local/Qt-5.7.0) from linux-g++ to default.

After that my project compiled fine within Qt Creator against the new Qt version. The problem is that the program won't start It says :
This application failed to start because it could not find or load the Qt platform plugin "eglfs"

Does someone no know what's wrong ?

micland

@PALYGAP said:

After that my project compiled fine within Qt Creator against the new Qt version. The problem is that the program won't start It says :
This application failed to start because it could not find or load the Qt platform plugin "eglfs"

You configured Qt with the option -no-opengl so the eglfs backend is not available. You can try to start the application using the argument -platform xcb to force the X backend (if x window system is available).
See also http://doc.qt.io/qt-5/embedded-linux.html for the different possible backends.

PALYGAP

Thanks for the info micland
I tried running my application with the -platform scb typing : *MyApp -platform scb *
but I still got the same error.

I am now trying to rebuild Qt with the opengl included --> removed -no-opengl from the configuration
but when running make I get some errors about EGL during the compilation of the source qeglfsbrcmintegration.cpp :

make[6]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs'
/usr/bin/g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard -O2 -fPIC -std=c++11 -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -D_REENTRANT -fPIC -DQT_NO_MTDEV -DQT_NO_LIBINPUT -DQT_NO_XKB -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_STATICPLUGIN -DQT_PLUGIN -DQT_EGLFS_DEVICE_LIB_LIB -DQT_PLATFORMSUPPORT_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I../../../../include -I../../../../include/QtPlatformSupport -I../../../../include/QtPlatformSupport/5.7.0 -I../../../../include/QtPlatformSupport/5.7.0/QtPlatformSupport -I../../../../include/QtGui/5.7.0 -I../../../../include/QtGui/5.7.0/QtGui -I../../../../include/QtGui -I../../../../include/QtCore/5.7.0 -I../../../../include/QtCore/5.7.0/QtCore -I../../../../include/QtCore -I.moc -I../../../../mkspecs/devices/linux-rasp-pi-g++ -o .obj/qeglfsmain.o qeglfsmain.cpp
rm -f ../../../../plugins/platforms/libqeglfs.a
/usr/bin/ar cqs ../../../../plugins/platforms/libqeglfs.a .obj/qeglfsmain.o
make[6]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs'
cd deviceintegration/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration/deviceintegration.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
make[6]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration'
cd eglfs_brcm/ && ( test -e Makefile || /home/pi/Qt5.7.0-src/qtbase/bin/qmake /home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/eglfs_brcm.pro -qtconf /home/pi/Qt5.7.0-src/qtbase/bin/qt.conf -o Makefile ) && make -f Makefile 
make[7]: Entering directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm'
/home/pi/Qt5.7.0-src/qtbase/bin/moc -DQT_NO_MTDEV -DQT_NO_LIBINPUT -DQT_NO_XKB -DMESA_EGL_NO_X11_HEADERS -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_STATICPLUGIN -DQT_PLUGIN -DQT_EGLFS_DEVICE_LIB_LIB -DQT_PLATFORMSUPPORT_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/home/pi/Qt5.7.0-src/qtbase/mkspecs/devices/linux-rasp-pi-g++ -I/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm -I/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs -I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux -I/home/pi/Qt5.7.0-src/qtbase/include -I/home/pi/Qt5.7.0-src/qtbase/include/QtPlatformSupport -I/home/pi/Qt5.7.0-src/qtbase/include/QtPlatformSupport/5.7.0 -I/home/pi/Qt5.7.0-src/qtbase/include/QtPlatformSupport/5.7.0/QtPlatformSupport -I/home/pi/Qt5.7.0-src/qtbase/include/QtGui/5.7.0 -I/home/pi/Qt5.7.0-src/qtbase/include/QtGui/5.7.0/QtGui -I/home/pi/Qt5.7.0-src/qtbase/include/QtGui -I/home/pi/Qt5.7.0-src/qtbase/include/QtCore/5.7.0 -I/home/pi/Qt5.7.0-src/qtbase/include/QtCore/5.7.0/QtCore -I/home/pi/Qt5.7.0-src/qtbase/include/QtCore -I/usr/include/c++/4.7 -I/usr/include/c++/4.7/arm-linux-gnueabihf -I/usr/include/c++/4.7/backward -I/usr/lib/gcc/arm-linux-gnueabihf/4.7/include -I/usr/local/include -I/usr/lib/gcc/arm-linux-gnueabihf/4.7/include-fixed -I/usr/include/arm-linux-gnueabihf -I/usr/include qeglfsbrcmmain.cpp -o .moc/qeglfsbrcmmain.moc
/usr/bin/g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard -O2 -fPIC -std=c++11 -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -D_REENTRANT -fPIC -DQT_NO_MTDEV -DQT_NO_LIBINPUT -DQT_NO_XKB -DMESA_EGL_NO_X11_HEADERS -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_STATICPLUGIN -DQT_PLUGIN -DQT_EGLFS_DEVICE_LIB_LIB -DQT_PLATFORMSUPPORT_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I../../../eglfs -I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux -I../../../../../../include -I../../../../../../include/QtPlatformSupport -I../../../../../../include/QtPlatformSupport/5.7.0 -I../../../../../../include/QtPlatformSupport/5.7.0/QtPlatformSupport -I../../../../../../include/QtGui/5.7.0 -I../../../../../../include/QtGui/5.7.0/QtGui -I../../../../../../include/QtGui -I../../../../../../include/QtCore/5.7.0 -I../../../../../../include/QtCore/5.7.0/QtCore -I../../../../../../include/QtCore -I.moc -I../../../../../../mkspecs/devices/linux-rasp-pi-g++ -o .obj/qeglfsbrcmmain.o qeglfsbrcmmain.cpp
/usr/bin/g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard -O2 -fPIC -std=c++11 -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -D_REENTRANT -fPIC -DQT_NO_MTDEV -DQT_NO_LIBINPUT -DQT_NO_XKB -DMESA_EGL_NO_X11_HEADERS -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_STATICPLUGIN -DQT_PLUGIN -DQT_EGLFS_DEVICE_LIB_LIB -DQT_PLATFORMSUPPORT_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I../../../eglfs -I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux -I../../../../../../include -I../../../../../../include/QtPlatformSupport -I../../../../../../include/QtPlatformSupport/5.7.0 -I../../../../../../include/QtPlatformSupport/5.7.0/QtPlatformSupport -I../../../../../../include/QtGui/5.7.0 -I../../../../../../include/QtGui/5.7.0/QtGui -I../../../../../../include/QtGui -I../../../../../../include/QtCore/5.7.0 -I../../../../../../include/QtCore/5.7.0/QtCore -I../../../../../../include/QtCore -I.moc -I../../../../../../mkspecs/devices/linux-rasp-pi-g++ -o .obj/qeglfsbrcmintegration.o qeglfsbrcmintegration.cpp
qeglfsbrcmintegration.cpp: In function ‘EGLNativeWindowType createDispmanxLayer(const QPoint&, const QSize&, int, DISPMANX_FLAGS_ALPHA_T)’:
qeglfsbrcmintegration.cpp:74:5: error: ‘EGL_DISPMANX_WINDOW_T’ was not declared in this scope
qeglfsbrcmintegration.cpp:74:28: error: ‘eglWindow’ was not declared in this scope
qeglfsbrcmintegration.cpp:74:44: error: expected type-specifier before ‘EGL_DISPMANX_WINDOW_T’
qeglfsbrcmintegration.cpp:74:44: error: expected ‘;’ before ‘EGL_DISPMANX_WINDOW_T’
qeglfsbrcmintegration.cpp: In function ‘void destroyDispmanxLayer(EGLNativeWindowType)’:
qeglfsbrcmintegration.cpp:84:5: error: ‘EGL_DISPMANX_WINDOW_T’ was not declared in this scope
qeglfsbrcmintegration.cpp:84:28: error: ‘eglWindow’ was not declared in this scope
qeglfsbrcmintegration.cpp:84:52: error: expected type-specifier before ‘EGL_DISPMANX_WINDOW_T’
qeglfsbrcmintegration.cpp:84:52: error: expected ‘>’ before ‘EGL_DISPMANX_WINDOW_T’
qeglfsbrcmintegration.cpp:84:52: error: expected ‘(’ before ‘EGL_DISPMANX_WINDOW_T’
qeglfsbrcmintegration.cpp:84:75: error: expected primary-expression before ‘>’ token
qeglfsbrcmintegration.cpp:84:84: error: expected ‘)’ before ‘;’ token
qeglfsbrcmintegration.cpp:88:12: error: type ‘<type error>’ argument given to ‘delete’, expected pointer
qeglfsbrcmintegration.cpp: In function ‘EGLNativeWindowType createDispmanxLayer(const QPoint&, const QSize&, int, DISPMANX_FLAGS_ALPHA_T)’:
qeglfsbrcmintegration.cpp:80:1: warning: control reaches end of non-void function [-Wreturn-type]
Makefile:1903: recipe for target '.obj/qeglfsbrcmintegration.o' failed
make[7]: *** [.obj/qeglfsbrcmintegration.o] Error 1
make[7]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm'
Makefile:42: recipe for target 'sub-eglfs_brcm-make_first' failed
make[6]: *** [sub-eglfs_brcm-make_first] Error 2
make[6]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs/deviceintegration'
Makefile:102: recipe for target 'sub-deviceintegration-make_first-ordered' failed
make[5]: *** [sub-deviceintegration-make_first-ordered] Error 2
make[5]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms/eglfs'
Makefile:122: recipe for target 'sub-eglfs-make_first' failed
make[4]: *** [sub-eglfs-make_first] Error 2
make[4]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins/platforms'
Makefile:99: recipe for target 'sub-platforms-make_first' failed
make[3]: *** [sub-platforms-make_first] Error 2
make[3]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src/plugins'
Makefile:748: recipe for target 'sub-plugins-make_first' failed
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase/src'
Makefile:45: recipe for target 'sub-src-make_first' failed
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory '/home/pi/Qt5.7.0-src/qtbase'
Makefile:77: recipe for target 'module-qtbase-make_first' failed
make: *** [module-qtbase-make_first] Error 2

micland

@PALYGAP said:

Thanks for the info micland
I tried running my application with the -platform scb typing : *MyApp -platform scb *
but I still got the same error.

xcb! not scb
MyApp -platform xcb

There are some pitfalls compiling Qt with EGLFS on a RasPi. Take a look at this wiki page:
http://wiki.qt.io/RaspberryPi2EGLFS

PALYGAP

Tried again with the right call (MyApp -platform xcb) and got a different error :

top-Qt___Qt-5_7_0__Release $ ./btscanner -platform xcb
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Reinstalling the application may fix this problem.

Apparently the xcb module was not installed on my Raspbian system, so I installed it :

sudo apt-get install xcb

Trying again to run my program the result was still the same message (see above).

I checked the file in the /usr/local/Qt-5.7.0/plugins/platforms and the libqxcb.a is there :

drwxr-sr-x  2 root staff  4096 juil.  6 06:57 .
drwxr-sr-x 18 root staff  4096 juil.  6 06:59 ..
-rw-r--r--  1 root staff 45060 juil.  5 20:41 libqlinuxfb.a
-rw-r--r--  1 root staff  1152 juil.  6 06:57 libqlinuxfb.prl
-rw-r--r--  1 root staff 29736 juil.  5 20:35 libqminimal.a
-rw-r--r--  1 root staff  1152 juil.  6 06:57 libqminimal.prl
-rw-r--r--  1 root staff 58798 juil.  5 20:36 libqoffscreen.a
-rw-r--r--  1 root staff  1104 juil.  6 06:57 libqoffscreen.prl
-rw-r--r--  1 root staff  7514 juil.  5 20:42 libqxcb.a
-rw-r--r--  1 root staff  1268 juil.  6 06:57 libqxcb.prl

Tried to update the PATH with the platforms lib PATH : export PATH=/usr/local/Qt-5.7.0/plugins/platforms:$PATH
but that did not solve the problem.

Thanks micland for the link. I'll have a look at it tomorrow.