polyfit test fails

[Marco Atzeri]

Dear all,
on latest hg source, on cygwin-1.7, I have


>>>>> processing /pub/hg/octave_clone/scripts/polynomial/polyfit.m
  ***** test
 x = [ -1196.4, -1195.2, -1194, -1192.8, -1191.6, -1190.4, -1189.2, -1188, \
       -1186.8, -1185.6, -1184.4, -1183.2, -1182];
 y = [ 315571.7086, 315575.9618, 315579.4195, 315582.6206, 315585.4966,    \
       315588.3172, 315590.9326, 315593.5934, 315596.0455, 315598.4201,    \
       315600.7143, 315602.9508, 315605.1765 ];
 [p1, s1] = polyfit (x, y, 10);
 [p2, s2, mu] = polyfit (x, y, 10);
 assert (2*s2.normr < s1.normr)
!!!!! test failed



octave:5> 2*s2.normr
ans =  0.12583
octave:6>  s1.normr
ans =  0.11466


is this fault cygwin specific or do you see it 
on other platform ?


For the rest I have only the already known cygwin faults in

>>>>> processing /pub/hg/octave_clone/src/data.cc
due to abs of NaN on complex.

>>>>> processing /pub/hg/octave_clone/src/syscalls.cc
due to fork issue.

Regards
Marco