Building Qwt with Qt5

Ratzz

I am trying to install Qwt version qwt-5.2 and my Qt version is Qt 5.5.0.
I installed Qwt using svn command

svn checkout svn://svn.code.sf.net/p/qwt/code/branches/qwt-5.2

Then i ran qmake qwt.pro which gave me cannot find /usr/lib/i386-linux-gnu/qt4/bin/qmake so i installed qmake using apt-get install qt4 qmake . which allowed me to run make

root@user-ThinkCentre-A70:/home/user/qwt-5.2# make
cd src/ && make -f Makefile 
make[1]: Entering directory `/home/user/qwt-5.2/src'
compiling qwt_abstract_scale_draw.cpp
qwt_abstract_scale_draw.cpp:12:22: fatal error: qpainter.h: No such file or directory
 #include <qpainter.h>
                      ^
compilation terminated.
make[1]: *** [obj/qwt_abstract_scale_draw.o] Error 1
make[1]: Leaving directory `/home/user/qwt-5.2/src'
make: *** [sub-src-make_default-ordered] Error 2

with qtchooser (/usr/lib/i386-linux-gnu/qt-default/qtchooser/default.conf) saying

/usr/lib/i386-linux-gnu/qt4/bin
/usr/lib/i386-linux-gnu

So removed Qwt-5.2 and installed Qwt-6.1 which allowed to run qmake but not make

root@user-ThinkCentre-A70:/home/rathan/qwt-6.1# make
cd src/ && /usr/lib/i386-linux-gnu/qt4/bin/qmake /home/user/qwt-6.1/src/src.pro -o Makefile
cd src/ && make -f Makefile 
make[1]: Entering directory `/home/rathan/qwt-6.1/src'
compiling qwt_abstract_scale_draw.cpp
In file included from qwt_abstract_scale_draw.h:13:0,
                 from qwt_abstract_scale_draw.cpp:10:
qwt_global.h:13:21: fatal error: qglobal.h: No such file or directory
 #include <qglobal.h>
                     ^
compilation terminated.
make[1]: *** [obj/qwt_abstract_scale_draw.o] Error 1
make[1]: Leaving directory `/home/user/qwt-6.1/src'
make: *** [sub-src-make_default-ordered] Error 2

with qtchooser edited to (/usr/lib/i386-linux-gnu/qt-default/qtchooser/default.conf) with no joy.

/usr/lib/i386-linux-gnu/qt5/bin
/usr/lib/i386-linux-gnu

But my qmake is in /opt/Qt5.5.0/5.5/gcc/bin/qmake path so just pointed the qtchooser to it to check if it works but it gave me

root@user-ThinkCentre-A70:/home/user/qwt-6.1# make
cd src/ && ( test -e Makefile || /opt/Qt5.5.0/5.5/gcc/bin/qmake /home/user/qwt-6.1/src/src.pro -o Makefile ) && make -f Makefile 
make[1]: Entering directory `/home/user/qwt-6.1/src'
make[1]: *** No rule to make target `/usr/share/qt4/mkspecs/linux-g++/qmake.conf', needed by `Makefile'.  Stop.
make[1]: Leaving directory `/home/user/qwt-6.1/src'
make: *** [sub-src-make_first-ordered] Error 2

what is that i missed??

mchinand

I've used Qwt 6.1 with Qt 5.5 (and 5.6). It looks like your problem is mixing Qt versions. Did you re-run qmake using the 5.5 qmake (you might have to completely clean the build folder instead of just re-running the correct qmake).

? Offline

Hi! I just tried it myself. I'm on openSUSE leap 42 and I'm using Qt5.6.0 (gcc 64 bit). This Qt version is installed in /opt/Qt5.6.0. The following works for me:

Download qwt-6.1.2.tar.bz2 to ~/Downloads/qwt-6.1.2.tar.bz2
Extract to ~/Downloads/qwt-6.1.2
Start Qt Creator. Open project: ~/Downloads/qwt.pro. Configure project with kit of your choice. I used gcc 64.
Build project for release (takes some time).
Close Qt Creator.
Open a terminal.
cd ~/Downloads/build-qwt-Desktop_Qt_5_6_0_GCC_64bit-Release/
become superuser: su (enter password)
make install
back to normal user: exit
append the following to ~/.bashrc:

QT_PLUGIN_PATH="/usr/local/qwt-6.1.2/plugins:$QT_PLUGIN_PATH"
export QT_PLUGIN_PATH

log out of current x session and log in again (or reboot, what ever)
Start Qt Creator. Create new Widgets project. Go to forms designer. Qwt widgets are now available. Add one of the widgets to your main form.
Go to the new project's *.pro file. Include qwt there, so the file should look similar to this:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = untitled5
TEMPLATE = app

# ****** INCLUDE QWT  *********
include ( /usr/local/qwt-6.1.2/features/qwt.prf )

SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

Run your shiny new program :-)

Ratzz

@mchinand
Thanks for the reply . Yes i did re-run qmake using 5.5.
@Wieland
Woow!
Thanks . It just worked for me :)