Use GSL library with Qt

[sDmt]

Hi,
I know this question was asked many times before, but I still have troubles in solving this issue.
what I have done so far:

• i managed to successfully compile the library using MinGW according the procedure described in this link. As a result, I obtained "C:\gsl-2.6" with four folders in it: bin, include, lib and share. the bin folder contains libgsl-25.dll and libgslcblas-0.dll and lib folder contains: libgsl.a and libgslcblas.a. And the include contains gsl folder with the required headers of the library in it.
• I made a Qt Widget Application named gslTest and added to it

win32{
   INCLUDEPATH += C:/gsl-2.6/include/
   INCLUDEPATH += C:/gsl-2.6/lib
   LIBS += -LC:/gsl-2.6/lib -llibgsl -llibgslcblas -lm
}

So far the project builds without any problem.

• finally, I tried to implement this example.

double x = 5.0;
double y = gsl_sf_bessel_J0 (x);

When I add #include <gsl/gsl_sf_bessel.h> qt recognizes it but i get error message in double y = gsl_sf_bessel_J0 (x);

gslTest\gslTest\mainwindow.cpp:11: error: undefined reference to `gsl_sf_bessel_J0'

I tried many ways to run this example and this the best I've got.
Please, any ideal about what is wrong here.
Thanks in advance.

[SGaist]

Hi,

The lib in -llibgsl shall be dropped (same for the other libraires.)

[sDmt]

@SGaist Thanks for the reply.
Sorry but If i understand correctly. Should I rename the libraries without lib and keep the pro as it is or its the opposite? I tried both and still the same result.
Please advise.

[SGaist]

No, you should modify your .pro file.

Are you sure these libraries architecture matches the one from the Qt version you are using ?

[sDmt]

@SGaist That was my problem. I compiled the libraries with MinGW 32 while my Qt's is MinGW 64. I changed the compiler and the problem is solved.
Thanks for the help.