I think it's changed -- just tested it in 8.10. On a clean install, I get warnings on the first run, and can't produce plot output. But it seems to work on the second run OK. I tried deleting the .gretlrc file and the directory .gretl, and I get the same errors again. So there is something missing somewhere about the creation of this ~/.gretl directory.
john@roadwork:~$ gretl
Couldn't read /home/john/.gretl2rc
get_gretl_charset: using UTF-8
I think it's changed -- just tested it in 8.10. On a clean install, I get warnings on the first run, and can't produce plot output. But it seems to work on the second run OK. I tried deleting the .gretlrc file and the directory .gretl, and I get the same errors again. So there is something missing somewhere about the creation of this ~/.gretl directory.
john@roadwork:~$ gretl .gretl2rc
Couldn't read /home/john/
get_gretl_charset: using UTF-8
Read datafile /usr/share/ gretl/data/ greene/ greene5_ 1.gdt
periodicity: 4, maxobs: 204,
observations range: 1950:1-2000:4
gnuplot_init: couldn't write to /home/john/ .gretl/ gpttmp. S17pJv .gretl/ gpttmp. AMPdJ5
gnuplot_init: couldn't write to /home/john/