Bug#942015: FTBS: Doesn't compile with upcoming qscintilla 2.11.2

[Gudjon I. Gudjonsson]

Package: qgis
Version: 3.4.12+dfsg-1
Severity: normal
Tags: patch

Dear maintainers

I tried to compile qgis with the upcoming qscintilla 2.11.2 but it failed. 
But the attached patch based on qgis 3.8 seems to solve the problem.

Regards
Gudjon

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.2.0-3-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages qgis depends on:
ii  libc6                            2.29-2
ii  libgcc1                          1:9.2.1-8
ii  libgdal20 [gdal-abi-2-4-0]       2.4.2+dfsg-1+b3
ii  libgeos-c1v5                     3.7.2-1
ii  libgsl23                         2.5+dfsg-6+b1
ii  libqgis-analysis3.4.12           3.4.12+dfsg-1
ii  libqgis-app3.4.12                3.4.12+dfsg-1
ii  libqgis-core3.4.12               3.4.12+dfsg-1
ii  libqgis-gui3.4.12                3.4.12+dfsg-1
ii  libqt5core5a                     5.11.3+dfsg1-4
ii  libqt5gui5                       5.11.3+dfsg1-4
ii  libqt5keychain1                  0.9.1-2
ii  libqt5network5                   5.11.3+dfsg1-4
ii  libqt5sql5                       5.11.3+dfsg1-4
ii  libqt5widgets5                   5.11.3+dfsg1-4
ii  libqt5xml5                       5.11.3+dfsg1-4
ii  libstdc++6                       9.2.1-8
ii  ocl-icd-libopencl1 [libopencl1]  2.2.12-2
ii  python3-qgis                     3.4.12+dfsg-1
ii  qgis-common                      3.4.12+dfsg-1
ii  qgis-providers                   3.4.12+dfsg-1
ii  qt5-image-formats-plugins        5.11.3-2

Versions of packages qgis recommends:
ii  qgis-plugin-grass  3.4.12+dfsg-1

Versions of packages qgis suggests:
pn  gpsbabel  <none>
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