Re: Problem with compiling program

[Achim Gädke <Achim dot Gaedke at physik dot tu-darmstadt dot de>]

Please follow the instructions given in gsl-reference section 2.2

You should be able to complie

gcc trial.c -o trail -L/where/gsl/lies/lib -lgsl

replace the Path /where/gsl/lies with the gsl install-prefix. Now, it 
should compile. You may have to modify the environment variable 
LD_LIBRARY_PATH to let the program know where the library file libgsl.so 
lies.

But all this stuff can be read at the second chapter of gsl-reference, 
available online at http://sources.redhat.com/gsl/ref/gsl-ref_2.html#SEC10
or using the info files.

Achim

V Karthik wrote:

> I recently installed GSL with the default options by
> first executing './configure' and then 'make' and then
> 'make install'. But when I try to compile and run this
> example example program given in the manual i get the
> following error message. 
>
> The C program is 
>
> #include <stdio.h>
> #include <gsl/gsl_sf_bessel.h>
>
> int main(void) {
>  double x = 5.0;
>  double y = gsl_sf_bessel_J0(x);
>  printf("J0(%g) = %.18e\n",x,y);
>  return 0;
> }
>
> Error Message:
>
> # gcc trial.c
> /tmp/ccu8pcOy.o: In function `main':
> /tmp/ccu8pcOy.o(.text+0x28): undefined reference to
> `gsl_sf_bessel_J0'
> collect2: ld returned 1 exit status
>
> I've tried to provide full path for heared files and
> libraries while compiling and linking but to no avail.
> Could someone please help me.
>
> Thanks
> Karthik
>
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