Drop Qt 5.12 and 5.14

[K900]

We have 32 packages that depend on pre-5.15 Qt. Those are (as determined by rg '\s+(.*) = libsForQt51[24]\.callPackage' --no-line-number -o -r '$1'):

• antimony (upstream, see Fix use of deprecated APIs in Qt 5.15 mkeeter/antimony#235)
• apmplanner2 treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• bitcoin-classic Bitcoin forks cleanup #202664
• bitcoin-gold Bitcoin forks cleanup #202664
• bitcoin-unlimited Bitcoin forks cleanup #202664
• boomerang
• brewtarget treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• cb2bib treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• digibyte Bitcoin forks cleanup #202664
• digitalbitbox treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• fontmatrix
• foxitreader
• graphia graphia: 3.1 -> 3.2 #203057
• ipe treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• kexi
• kvirc kvirc: 5.0.0 -> 2022-06-29 #201771
• mythtv mythtv: 31.0 -> 32.0 #203145
• notepadqq notepadqq: 1.4.8 -> 2.0.0-beta #202075
• olive-editor
• polyphone polyphone: 2.2.0 -> 2.3.0 #201974
• pulseview (upstream, see Drop Qt 5.12 and 5.14 #201765 (comment))
• quiterss
• rosegarden treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• sayonara sayonara: build against latest Qt5 #202142
• smtube: smtube: use default version of Qt 5 #201770
• subsurface subsurface: 5.0.2 -> 5.0.10 #202145
• swift-im
• tony
• vertcoin Bitcoin forks cleanup #202664
• wkhtmltopdf treewide: switch remaining things verified to run on Qt 5.15 to Qt 5.15 #203064
• xygrib xygrib: 1.2.6.1 -> unstable-2022-05-16 #203058

The old Qt versions are a big maintenance burden, as evidenced by them breaking yet again with #200872, and we should really get rid of them.

Ping @NixOS/qt-kde

Also general ping to all the maintainers of affected packages:

• antimony: @rnhmjoj
• apmplanner2: @wucke13
• bitcoin-classic: @jefdaj
• bitcoin-gold: @mmahut
• bitcoin-unlimited: @DmitryTsygankov
• boomerang: @dtzWill
• brewtarget: @mmahut
• cb2bib: @edwtjo
• digibyte: @mmahut
• digitalbitbox: @vidbina
• foxitreader: @p-h, @rhoriguchi
• graphia: @bgamari
• ipe: @ttuegel
• kexi: @zraexy
• kvirc: @suhr
• mythtv: @titanous
• notepadqq: @rszibele
• olive-editor: @balsoft
• polyphone: @Maxdamantus
• pulseview: @bjornfor
• quiterss: @primeos
• rosegarden: @lebastr
• sayonara: @deepfire
• smtube: @vbgl
• subsurface: @mguentner, @adisbladis
• swift-im: @orivej
• tony: @orivej
• vertcoin: @mmahut
• wkhtmltopdf: @jb55
• xygrib: @johannesloetzsch, @SuperSandro2000

[vbgl]

smtube: #201770

[bjornfor]

Re: pulseview. I tried updating to default qt version and it failed to build. Then I pinged upstream: https://sourceforge.net/p/sigrok/mailman/message/37736944/.

[rnhmjoj]

Antimony is on very low maintenance but I should be able to fix it and get a patch merged, not so soon though. Do you intend to drop Qt <5.15 for 22.11 or a later release?

[K900]

I think it's too late for 22.11, but I want to do it early in the 23.05 cycle.

[Maxdamantus]

polyphone: #201974

[flokli]

There seems to already be an issue about that: #53079

Can we check if something important is still missing from there?

[K900]

That issue is about deprecating the QtWebKit module from all Qt versions (5.15 included). This one is about deprecating the older versions entirely. There's some overlap, but it's not all.

[LunNova]

notepadqq: #202075

[K900]

Tried updating mythtv, v32 should be buildable with Qt 5.15, but it fails to link its own vendored ffmpeg and I don't want to dig into 15k lines of bash that are their build system. WIP patch if anyone wants to continue: https://termbin.com/e1o6

[K900]

Doing a quick audit on the remaining packages that don't build with 5.15:

Package	Dead	Notes
boomerang	very
fontmatrix	basically
foxitreader	?	can't fetch the source, package hasn't been updated for over a year
kexi	basically
olive-editor	?	upstream is active, but last numbered release in 2019 - update to unstable?
pulseview	?	deadness of upstream needs confirmation
quiterss	yes	builds on 5.15 but segfaults on startup
swift-im	very
tony	very

[K900]

I think it might be worth trying to save graphia, mythtv and xygrib, and the rest should be good to drop.

[lilyinstarlight]

@K900, there is an open PR for the mythtv update already that seems to work with a few modifications from your patch above: #197930

Edit: I've opened #203145

[K900]

Awesome, I must have missed it. So, should we get all of this merged and rip off the bandaid?

[K900]

#202661 should be good to go. I'm giving it a few days so any affected packages can get fixed, but I want to merge it by the end of the week at the latest.