[Solved]Adding QWT Library to Qt creator
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Hi. Can someone explain me how to add the QWT Library to the Qt creator, so tht i can build plotting application like any other normal applications.
Thank you.
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What do you mean by "adding to Qt Creator"? It is IDE. Maybe you want to add it to your project?
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Yeah.. Adding it to my project.
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Look at qmake LIBS keyword in Assistant.
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Creator even has an assistant for adding libraries.
Open your .pro file and right click into the .pro file.
Now you will see an "add library" item in the context menu. -
I m working on linux platform. All I have is the .so files and all the header/class files. How to link it to the Qt creator project.
I dont seem to have an add library option on right clicking my .pro file. Rather, I jus have an option to add some random files(C++ class , Resource file and the QML file).
Is Qmake option similar to " LIBS += -L/usr/local/lib -lmath" ??
Please help.
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[quote author="Vijaeendra" date="1310362001"]
Is Qmake option similar to " LIBS += -L/usr/local/lib -lmath" ??
[/quote]
yeah, you are right. -
I m facing a trouble at the linking phase. I have added a DEPENDPATH to my library file.., the .so file names are as follows..,
libqwt.so
libqwt.so.6
libqwt.so.6.0
libqwt.so.6.0.0
libqwtmathml.so
libqwtmathml.so.6
libqwtmathml.so.6.0
libqwtmathml.so.6.0.0I tried
LIBS += -llibqwtmathml, which is not working.I also tried giving the complete path but did not help.
Can u please help me in adding this ., -
My .pro file is
QT += core gui
LIBS += -llibqwt
-llibqwtmathmlTARGET = plottrial
TEMPLATE = appSOURCES += main.cpp
plotmatrix.cppHEADERS += plotmatrix.h
INCLUDEPATH += /home/viju/Desktop/qwt-6.0.0/src
DEPENDPATH += /home/viju/Desktop/qwt-6.0.0/lib
FORMS += plotmatrix.ui
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Well, It should be
LIBS += -L//home/viju/Desktop/qwt-6.0.0/lib -lqwt
But I still have dynamic linking problem.
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bq. I m working on linux platform. All I have is the .so files and all the header/class files. How to link it to the Qt creator project.
What Linux are you on and what version? This can be important to know because not all linux boxes use the same way to let the run-time linker known the path to a shared library .
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Ubuntu-10.10
thanks
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In that case I think i can help you out. I've succeeded using QWT in kubuntu 10.10 and had to look at the ubuntu help pages to solve it out. So it should work for you too.
of course you have to adapt the paths.
in shell :
- Add the ld.so configuration file :
echo "/usr/local/qwt-6.0.0-rc5/lib" | sudo tee /etc/ld.so.conf.d/qwt.conf - Update the cache :
sudo ldconfig -v
put this in your pro file :
@#QWT
QWT_LOCATION = /usr/local/qwt-6.0.0-rc5/
INCLUDEPATH += $${QWT_LOCATION}/include/
LIBS = -L$${QWT_LOCATION}/lib
-lqwt@
If you later decide to "uninstall" the libraries, just remove the conf file and run sudo ldconfig again. - Add the ld.so configuration file :
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Can u please explain the command . I have qwt folder on the desktop. also there isnt qwt.conf file.
I m not able to edit any of the configuration files. But, I m sure once i add this path it ll surely work.Thanks.
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Did you compile qwt?
If not open the pro file in Qt Creator and compile it.
Then follow my instructions.
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I have compiled Qwt, I m able to run all the qwt example projects too. But i cant find qwt.conf file.
I need to know the exact procedure for gaining rights to edit the configuration files.
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Did you follow my instructions? You have to do that first.
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Yeah I did.. I got it.
I had to change LD_ LIBRARY _PATH.
Thanks for the help.
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Glad to hear that.
Could you please add [solved] in your title?
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Hi..I have gone through the above discussion as I am facing the same problem(using qwt with qt creator).
I have downloaded qwt-6.0.1 package,but I am unable to install it.
I am using ubuntu 10.10.
When I 'qmake' it succeeds,but when I 'make' it it gives fatal errors like "qdebug.h No such file" etc..
What should I do?