 @mitya57 doing export NINJAJOBS = -j2 but that seems to be ignored in qt6-webengine build. any idea?
 Do you add it manually, or you are relying on existing export NINJAJOBS = -j$(NUMJOBS) thing in d/rules?
 If manually, make sure you add it after that line.
 https://matterbridge.lubuntu.me/56e0217d/file_3944.jpg
 I nuke the existing bit to be sure
 but still get
 https://matterbridge.lubuntu.me/2de7a2c1/file_3945.jpg
 Because it's using cmake+ninja buildsystem, maybe -j flag passed by debhelper gets priority?
 Try passing --max-parallel=2 to dh $@ instead of this export.
 That makes sense if that is what is happening. thanks, I'll try
 Actually, this ninja is trying to build only 233 files, so don't look at this line. Maybe NINJAFLAGS worked too? Did it FTBFS?
 Yes, it did
 https://launchpadlibrarian.net/586841930/buildlog_ubuntu-jammy-amd64.qt6-webengine_6.2.2+dfsg-5ubuntu1~ppa3_BUILDING.txt.gz
 Maybe better to try both NINJAJOBS and max-parallel, not "instead".
 The real ninja command is this one:
 [82/233] cd /<<BUILDDIR>>/qt6-webengine-6.2.2+dfsg/obj-x86_64-linux-gnu/src/core && /usr/bin/ninja -C /<<BUILDDIR>>/qt6-webengine-6.2.2+dfsg/obj-x86_64-linux-gnu/src/core/None/x86_64 QtWebEngineCore
 Well I have done that not completely on purpose on the ppa4 I just uploaded, so we shall see 😄 (re @mitya57: Maybe better to try both NINJAJOBS and max-parallel, not "instead".)
 Good
 Ok, lets see. That will likely take quite some time, even to fail, so thanks for now :)
 https://launchpad.net/~kubuntu-ppa/+archive/ubuntu/staging-misc/+sourcepub/13270922/+listing-archive-extra
 I had so far avoided tangling much with ninja. New learning curve!
 and fail
 [82/233] cd /<<BUILDDIR>>/qt6-webengine-6.2.2+dfsg/obj-x86_64-linux-gnu/src/core && /usr/bin/ninja -C /<<BUILDDIR>>/qt6-webengine-6.2.2+dfsg/obj-x86_64-linux-gnu/src/core/None/x86_64 QtWebEngineCore
 still
 Maybe find the file that calls ninja and patch it?
 Actually, are you sure that's the cause? Maybe we should fight -g2 better?
 -g2 uses too much memory. It should be -g1 at most.
 export DEB_CFLAGS_MAINT_APPEND = -g1
        export DEB_CXXFLAGS_MAINT_APPEND = -g1
 that?
 back later
 Try that first, but it may be more complicated. I don't see Debian's build flags at all in that command line :(
 didn't work (re @mitya57: Try that first, but it may be more complicated. I don't see Debian's build flags at all in that command line :()
 Then we need to find out what injects -j2