[Help-gsl] lazy symbol binding failed

[Ali kia]

Hi 
I add this lines of code and the result in runtime is an error. (OS X 10.8 )
  gsl_matrix *m = gsl_matrix_alloc (DIM, DIM);
  for (i = 0; i < DIM; i++)    for (j = 0; j < DIM; j++)      gsl_matrix_set 
(m, i, j,4);

gsl_vector_view v = gsl_matrix_column (m, 0);
double tau_i = gsl_linalg_householder_transform (&v.vector);
the error :
dyld: lazy symbol binding failed: Symbol not found: _cblas_dnrm2  Referenced 
from: /usr/local/lib/libgsl.0.dylib  Expected in: flat namespace
dyld: Symbol not found: _cblas_dnrm2  Referenced from: 
/usr/local/lib/libgsl.0.dylib  Expected in: flat namespace
Trace/BPT trap: 5
Best regards,
A.k