I'm getting a reproducible crash when trying to run on my desktop (Ubuntu linux 20.04 and gretl built yesterday from git) the following script (which is as is in the "Hansl Primer" guide):

<hansl>

open bjg.gdt
foreign language=R --send-data
    y <- gretldata[, "lg"]
    strmod <- StructTS(y)
    compon <- as.ts(tsSmooth(strmod))
    vars <- as.matrix(strmod$coef)
    gretl.export(compon)
    gretl.export(vars)
end foreign
append @dotdir/compon.csv
rename level lg_level
rename slope lg_slope
rename sea lg_seas

vars = mread("vars.mat", 1)

</hansl>

The version of R seems not to affect. I just upgraded from R 3.6 to 4.1.2 obtaining the same crash.

I have gretl 2001.c built on august in my laptop (ubuntu 20.04 as well), and this script may be run without problem.

-- 
Ignacio Díaz-Emparanza
Departamento de Métodos Cuantitativos
Universidad del País Vasco - Euskalherriko Unibertsitatea, UPV/EHU
Tfno: (+34) 94 601 3732