As part of transitioning to using Clang as my system compiler, I have been running tests on most
packages to determine if they still properly function. However, this has introduced a problem where
some KDE package tests segfault.
Unfortunately, this launches DrKonqi in the virtx display to display a backtrace.

This results in the test phase hanging as DrKonqi is presumably waiting for user input.
See below for an instance of a test phase hanging as seen through `top -b -c -n 1 -u portage`:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3441869 portage 30 10 2360 1560 1400 S 0.0 0.0 0:00.00 [kde-apps/ark-21.08.2] sandbox /usr/lib/portage/python3.9/ebuild.sh test
3441870 portage 30 10 12896 7688 3592 S 0.0 0.0 0:00.01 /bin/bash /usr/lib/portage/python3.9/ebuild.sh test
3441886 portage 30 10 13036 6296 2064 S 0.0 0.0 0:00.01 /bin/bash /usr/lib/portage/python3.9/ebuild.sh test
3441908 portage 30 10 150436 59128 44836 S 0.0 0.1 0:00.03 /usr/bin/Xvfb :16 -screen 0 1280x1024x24 +extension RANDR
3441936 portage 30 10 55000 15512 13416 S 0.0 0.0 0:00.02 ctest -j 16 --test-load 999
3441938 portage 30 10 487364 58044 46480 T 0.0 0.1 0:00.20 /var/tmp/portage/kde-apps/ark-21.08.2/work/ark-21.08.2_build/bin/addtoarchivetest
3442262 portage 30 10 9176 2336 1600 S 0.0 0.0 0:00.00 dbus-launch --autolaunch 8d4328e526b647a5a2e029d1e0814ba6 --binary-syntax --close-stderr
3442279 portage 30 10 9460 4180 3408 S 0.0 0.0 0:00.00 /usr/bin/dbus-daemon --syslog-only --fork --print-pid 5 --print-address 7 --session
3444712 portage 30 10 350068 94032 78820 S 0.0 0.1 0:00.15 /usr/lib64/libexec/drkonqi --platform xcb --display :16 --appname addtoarchivetest
___

As far as I can tell, without sending SIGKILL to the test being traced (addtoarchivetest in this instance), the test phase never exits.

KDE provides a variable, KDE_DEBUG [1], which when set disables the DrKonqi crash handler.
Using this results in the tests segfaulting and the test phase simply failing, rather than hanging.

Most of the crashing tests are a result of kde-frameworks/kjs being built with Clang.
I have opened a bug report about this on bugs.kde.org [2].

Hopefully this is an acceptable solution. I have submitted a corresponding GitHub PR [3].
Cheers

[1]: https://userbase.kde.org/KDE_System_Administration/Environment_Variables#KDE_DEBUG
[2]: https://bugs.kde.org/show_bug.cgi?id=444003#c5
[3]: https://github.com/gentoo/gentoo/pull/22643

James Beddek (1):
ecm.eclass: set KDE_DEBUG=1 for ecm_src_test

eclass/ecm.eclass | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--
2.33.1

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