qsyncthingtray: fix compile with Qt 5.11

[urkud]

Motivation for this change

qsyncthingtray fails to compile with Qt 5.11 because of the lack of qt5_use_modules.
Grab a patch from upstream.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Fits CONTRIBUTING.md.

---

[infinisil]

@GrahamcOfBorg build qsyncthingtray

[GrahamcOfBorg]

Success on x86_64-linux (full log)

Attempted: qsyncthingtray

Partial log (click to expand)

post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8
shrinking /nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8/bin/qsyncthingtray
strip is /nix/store/4qvrxzxa535y8304mk195x50b6p9607d-binutils-2.30/bin/strip
stripping (with command strip and flags -S) in /nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8/bin
patching script interpreter paths in /nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8
checking for references to /build in /nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8...
postPatchMkspecs
postPatchMkspecs
/nix/store/5wbvwjd66xf8v1ds4dichjsh9lxl7vxj-qsyncthingtray-0.5.8

[GrahamcOfBorg]

Failure on aarch64-linux (full log)

Attempted: qsyncthingtray

Partial log (click to expand)

[6918/16620] CXX obj/third_party/webrtc/pc/peerconnection/mediastream.o
[6919/16620] CXX obj/third_party/webrtc/modules/audio_coding/neteq/packet_buffer.o
[6920/16620] CXX obj/third_party/webrtc/p2p/rtc_p2p/stunport.o
[6921/16620] CXX obj/third_party/webrtc/p2p/rtc_p2p/transportdescriptionfactory.o
[6922/16620] CXX obj/third_party/webrtc/modules/rtp_rtcp/rtp_rtcp_format/report_block.o
[6923/16620] CXX obj/third_party/webrtc/p2p/rtc_p2p/udptransport.o
[6924/16620] CXX obj/third_party/webrtc/pc/peerconnection/videotrack.o
building of '/nix/store/n7rqbpjnb85rl07h8r2ra2qz3906kxj5-qtwebengine-5.11.1.drv' timed out after 3600 seconds
cannot build derivation '/nix/store/zg17kdqdnlf2xy5gkbqvr2gs1cdr0s7z-qsyncthingtray-0.5.8.drv': 1 dependencies couldn't be built
error: build of '/nix/store/zg17kdqdnlf2xy5gkbqvr2gs1cdr0s7z-qsyncthingtray-0.5.8.drv' failed

[dotlambda]

I think qt5_use_modules was restored in 5.11.1. Qsyncthingtray builds just fine for me.

[orivej]

Yes, Qt has decided to keep qt5_use_modules in Qt 5. Qt 5.11.1 was merged in #42351.

[urkud]

I've created this branch before 5.11.1 was in nixpkgs, then forgot to test that there is a problem to solve before submitting a pull request. Sorry.

[orivej]

No problem. Thanks for improving Nixpkgs!