[Help-gsl] some basic question about compiling and linking

[W. Xu]

Hi there,
   I just started to use gls several days ago.
   When I read gsl-ref file I was confused by some terminologies, such
as "shared library" and "blas library"?
   Why we should use the options as "-lgsl" and "-lgslcblas"? And
what's the mechanism? 
   I want to know more than just using these options.

Thanks.

Wei