[Bug-gsl] Bessel Example results

[Manuel Segovia]

Hello
please check the following could this be a “bug”?

gsl @2.1 (math, science)
Mac OSX “el Capitan” 10.11.4
i am using Clang and compile instructions are:
clang -L/opt/local/lib -lgsl main.o -o bessel

# include <stdio.h> 
# include <gsl/gsl_sf_bessel.h> 
int main (void)
{
double x = 5.0; 
double y = gsl_sf_bessel_j0 (x); 
printf ("JO(%g) =  %.18e\n", x , y);
return(0);
}
the result i get is JO(5) =  -1.917848549326277019e-01
instead of -1.775967713143382920e-01 this is the result indicated in the gsl 
manual 2.1 example program
Thanks