What do you mean by “adding to Qt Creator”? It is IDE. Maybe you want to add it to your project?

Yeah.. Adding it to my project.

Look at qmake LIBS keyword in Assistant.

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.

Vijaeendra wrote:

Is Qmake option similar to “ LIBS += -L/usr/local/lib -lmath” ??

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.6.0.0

I 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\ -llibqwtmathml

TARGET = plottrial
TEMPLATE = app

SOURCES += main.cpp\ plotmatrix.cpp

HEADERS += plotmatrix.h

INCLUDEPATH += /home/viju/Desktop/qwt-6.0.0/src

DEPENDPATH += /home/viju/Desktop/qwt-6.0.0/lib

FORMS += plotmatrix.ui

Well, It should be

LIBS += -L//home/viju/Desktop/qwt-6.0.0/lib -lqwt

But I still have dynamic linking problem.

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 .

Ubuntu-10.10

thanks

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 :
1. Add the ld.so configuration file :
echo “/usr/local/qwt-6.0.0-rc5/lib” | sudo tee /etc/ld.so.conf.d/qwt.conf
2. Update the cache :
sudo ldconfig -v

put this in your pro file :

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.

Did you compile qwt?

If not open the pro file in Qt Creator and compile it.

Then follow my instructions.

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.