diff -up gsl-2.1/rstat/test.c.than gsl-2.1/rstat/test.c

diff -up gsl-2.1/test/results.c.than gsl-2.1/test/results.c

--- gsl-2.1/test/results.c.than	2016-03-10 18:08:17.013928401 -0500

+++ gsl-2.1/test/results.c	2016-03-10 18:42:45.717980023 -0500

@@ -131,6 +131,10 @@ gsl_test_rel (double result, double expe

     {

       status = -1;

     }

+  else if (fabs(result-expected) < relative_error)

+    {

+        status = 0;

+    }

   else if (expected != 0 ) 

     {

       status = (fabs(result-expected)/fabs(expected) > relative_error) ;