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.