Can't build on Linux

[freq-mod]

Same as OPN2BankEditor, I think

e/anon/OPL3BankEditor/src/delay_analysis.cpp: In member function ‘virtual double DelayAnalysisDialog::PlotData::y(double) const’:
/home/anon/OPL3BankEditor/src/delay_analysis.cpp:250:15: error: cannot declare variable ‘spline’ to be of abstract type ‘QwtSpline’
  250 |     QwtSpline spline;
      |               ^~~~~~
In file included from /home/anon/OPL3BankEditor/src/delay_analysis.cpp:29:
/usr/include/qwt/qwt_spline.h:57:18: note:   because the following virtual functions are pure within ‘QwtSpline’:
   57 | class QWT_EXPORT QwtSpline
      |                  ^~~~~~~~~
/usr/include/qwt/qwt_spline.h:176:26: note:     ‘virtual QPainterPath QwtSpline::painterPath(const QPolygonF&) const’
  176 |     virtual QPainterPath painterPath( const QPolygonF& ) const = 0;
      |                          ^~~~~~~~~~~
/home/anon/OPL3BankEditor/src/delay_analysis.cpp:251:12: error: ‘class QwtSpline’ has no member named ‘setPoints’
  251 |     spline.setPoints(poly);
      |            ^~~~~~~~~
/home/anon/OPL3BankEditor/src/delay_analysis.cpp:254:35: error: ‘class QwtSpline’ has no member named ‘value’
  254 |     double interpolatedY = spline.value(x);
      |                                   ^~~~~

[Wohlstand]

What Qt Version is?
Lemme try this with the analysis...

[Wohlstand]

Also, what version of Qwt you do have? On my end the 6.1.4 (installed via apt, Linux Mint 21.3, not yet upgraded, I'll upgrade to 22 soon)

[Wohlstand]

On my end the thing was built just fine, and seems the problem in the case if you trying to use Qt 6 or too new Qwt (then I should manually install it and debug the build compatibility).

[freq-mod]

Qwt 6.3 on my end

[Wohlstand]

Okay, then I should try that version...

[Kitsune64]

Here it build after some dependancies installations about Qt5_something_... on Debian 12 (Linux)
Also I noticed that RTaudio and RTmidi used by OPL3BankEditor (v1.5.1) are missing in your sources so

I have downloaded the sources files from the officiel repository:
rtaudio-5.2.0.tar.gz
rtmidi-5.0.0.tar.gz

I have attempted with the last version of these 2 last archives but that give me an error when compiling so be aware with the right version to use. (rtaudio 5.2 and rtmidi 5.0)
Link to these archives:
rtaudio-5.2.0.tar.gz
rtmidi-5.0.0.tar.gz

Official link about these archives:
https://github.com/thestk

[Wohlstand]

There submodules... you need to pull the repo by release tag and pull submodules then. Anyway, that's fault of GitHub that doesn't packs submodules into release's code

[Wohlstand]

I usually trying to attach the "complete source archive" in addition to prebuilt binaries. But here, seems, I forgot.