[GNC] piecharts/linecharts turned blank in reports after upgrade

[Dong Lin]

I created a fresh VM using ubuntu 21.04, minimal install with no gnucash
installed.

$ sudo apt-get build-dep gnucash
$ git clone https://github.com/Gnucash/gnucash.git
$ cd gnucash
$ git reset --hard 4.6
$ mkdir ../build && cd ../build
$ cmake ../gnucash
$ make -j8
$ ./bin/gnucash

the resulting gnucash produced blank charts.  tables are visible when
enabled.


> No, that switches only the libgnc*.so libs in lib/gnucash. There are
> others in lib/.
>
> You cannot build GnuCash with an installed GnuCash. You must `sudo apt-get
> remove gnucash` then `rm -rf *` your build directory and re-run cmake &&
> ninja.
>
> Regards,
> John Ralls
>
>
>> On Jul 20, 2021, at 9:16 PM, Dong Lin <c54e-gnucash at yahoo.com> wrote:
>>
>>
>> vm-ubuntu-1:~/src/build-gnucash$ mv lib lib-local-build
>> vm-ubuntu-1:~/src/build-gnucash$ ln -s /usr/lib/x86_64-linux-gnu/gnucash
>> lib
>>
>> this only switches the libgnc-*.so libs only.  all other libs continue
>> to
>> point to /usr/lib.
>>
>> vm-ubuntu-1:~/src/build-gnucash$ ./bin/gnucash
>> ./bin/gnucash: symbol lookup error: ./bin/gnucash: undefined symbol:
>> gnc_run_report_with_error_handling
>>
>>
>>> Switched how? What libwebkit2gtk.so and libjavascriptcoregtk.so was
>>> libgnc-html.so linked to if not the ones in /usr/lib?
>>>
>>> Regards,
>>> John Ralls
>>>
>>>> On Jul 20, 2021, at 7:55 PM, Dong Lin <c54e-gnucash at yahoo.com> wrote:
>>>>
>>>>
>>>> On a freshly installed Ubuntu 21.04 VM with apt installed GNC 4.4. the
>>>> apt
>>>> installed GNC runs fine with charts visible.
>>>>
>>>> But locally built GNC (tip of the latest maint branch) has the same
>>>> issue.
>>>> I tried switching the libs in build_dir to point to
>>>> /usr/lib/x86_64-linux-gnu/gnucash,  but the local gnucash encountered
>>>> an
>>>> undefined symbol gnc_run_report_with_error_handling and couldn't
>>>> start.
>>>>
>>>> apt removed the system gnucash, purged ~/.cache. reran the local gnc,
>>>> same
>>>> problem, blank charts.
>>>> only the table is visible.
>>>>
>>>> the build environment was prepared with apt-get build-dep gnucash as
>>>> instructed.
>>>>
>