There seems to be a bug using the --robust-hac option within a loop, as
can be seen using the example below.
I run current CVS on linux.
----------
open denmark
var 2 LRM LRY --robust-hac
#Robust(-hac) option without exogenous
loop for i=1..1
var $i LRM LRY --robust-hac
endloop
loop for i=1..1
var $i LRM LRY --robust
endloop
-------------------
The error message is : "Invalid option '--robust-hac'"
Best,
Artur