Using external library with Visual C++

Hello,
I am trying to use the GNU Scientific library as part of my C program. I am devloping under Windows XP, using the Visual C++ compiler. I created this simple program to try to get the hang of using the library, however I cannot get it to link for the life of me.

Here is the code:

Code:

#include <stdio.h>
#include <C:\GnuWin32\include\gsl/gsl_cdf.h>

extern double gsl_cdf_chisq_Pinv (const double P, const double nu);

     int main (void)
     {
		double y=0;
		y = gsl_cdf_chisq_Pinv (0.000085, 100);
		printf(  "Ans is: %e \n", y);
       return 0;
     }

Here is the Error message:

--------------------Configuration: EarlyPass - Win32 Debug--------------------
Compiling...
EarlyPass.c
Linking...
EarlyPass.obj : error LNK2001: unresolved external symbol _gsl_cdf_chisq_Pinv
Debug/EarlyPass.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

EarlyPass.exe - 2 error(s), 0 warning(s)

Any suggestions?

Thanks in advance.

Obviously you didn't include whatever source file gsl_cdf_chisq_Pinv is defined in.
Add all C or C++ files to the project and then compile.

That's what I thought. However, I tried both adding those files into the project, and then as is shown here I put in the file location for the *.h file, and the required *.h files now show under "External Dependencies" on the left.

Unless of course I'm missing something out.

Does it come with a .lib file and a dll for the code or are they bundled in source files?

It's an open source library, and there is a library in the form of an *.a file, and another in the form of a *.dll.a....

Here is a link to a screen shot of the folder with the "library".

Link doesn't work (for me at least). Try photobucket or similar image hosting solutions.

Sorry about that. Try here.

I have no idea what ".a" files are. Sorry.
Someone else may have knowledge. Don't give up hope.

Thanks Elysia, I shall not give up hope!

Sorry to bring this up again, but anyone have any ideas?

Have you actually BUILT the libraries?
.a is a normal unix library file, not windows.

Use the GSL Source code to build the actual library for Visual C++, then link to the resultant .lib file(s).
I don't see that they have a standalone DLL, but you could build that.

I downloaded an executable which "installed" it. I am not too sure what that exactly means though. I tried looking for the link, but I can't seem to find it at the moment.

How would I go around building it?

Thanks.