On Sat, 11 May 2019, Marcin Błażejowski wrote:
 On 11.05.2019 16:43, Cottrell, Allin wrote:
> On Sat, May 11, 2019 at 8:16 AM Marcin Błażejowski <marcin(a)wrzosy.nsb.pl>
wrote:
>> Hi,
>>
>> let start fresh gretl, define "New data set" as whatever and try to
save
>> as gdt: gretl crashes and gdb says: "/usr/local/bin/gretl_x11: symbol
>> lookup error: /usr/local/bin/gretl_x11: undefined symbol:
>> dataset_is_subsampled".
> robroy:~/src$ git pull
> Already up to date.
> robroy:~/src$ find . -name "*.c" | xargs grep dataset_is_subsampled
> ./gui/dialogs.c:    if (dataset_is_subsampled(dataset)) {
> ./gui/library.c:    if (dataset_is_subsampled(dataset)) {
> ./gui/library.c:        if (dataset_is_subsampled(dataset)) {
> ./gui/library.c:        if (dataset_is_subsampled(dataset)) {
> ./lib/src/subsample.c:int dataset_is_subsampled (const DATASET *dset)
> ./lib/src/subsample.c:    } else if (!dataset_is_subsampled(dset)) {
> robroy:~/src$ find . -name "*.h" | xargs grep dataset_is_subsampled
> ./lib/src/subsample.h:int dataset_is_subsampled (const DATASET *dset);
 Oh,
 the same as last time: in GNOME works fine, in Plasma gretl crashes.
 Maybe thise week I'll find some time to debug it. 
Ok, good luck!
I have no knowledge of Plasma, but given the error you describe I 
wonder if Plasma indulges in the sort of monkeying with upstream 
code that could be found in Ubuntu's "Unity" -- that is, driving a 
wedge between an application and the libraries against which it's 
linked, via LD_PRELOAD or equivalent.
In this case, gretl_x11 is (supposed to be) linked against libgretl, 
which contains the public symbol dataset_is_subsampled, yet that 
symbol is apparently not found. Either your gretl build is broken, 
or some third party (Plasma?) is intercepting and breaking the 
required linkage.
Allin