Bug 927813 – dev-qt/qtmultimedia-5.15.12 does not emerge in profile default/linux/amd64/23.0/split-usr/desktop/plasma

• Status: UNCONFIRMED
• Product: Gentoo Linux

[Description Stefan Trenker 2024-03-25 14:13:27 UTC]

emerge -1 =dev-qt/qtmultimedia-5.15.12 fails after profile change from 17.1 (default/linux/amd64/17.1/desktop/plasma) to 23.0 (default/linux/amd64/23.0/split-usr/desktop/plasma)

Under 17.1 it emerges w/o any problems, under 23.0 it bails out. Please see attached logs.

Problem seems to be Intel AVX related in combination with embedded assembler code.

Reproducible: Always

[Comment 1 Stefan Trenker 2024-03-25 14:14:13 UTC]

Created attachment 888542 [details]
emerge log

[Comment 2 Stefan Trenker 2024-03-25 14:15:07 UTC]

Created attachment 888543 [details]
emerge --info

[Comment 3 Stefan Trenker 2024-03-25 14:15:51 UTC]

Created attachment 888544 [details]
cpu flags

[Comment 4 Stefan Trenker 2024-03-25 14:16:25 UTC]

Changed Platform to amd64

[Comment 5 Ionen Wolkens 2024-03-25 14:24:58 UTC]

>CXXFLAGS="-O2 -pipe"
Have you tried with -march=native added?

Not that things should normally fail if omitted (haven't tried), unless.. you *used* to have it set and Qt (that has a tendency to remember things that were used to build qtcore/qtbase) is now confused.

[Comment 6 Stefan Trenker 2024-03-25 14:53:47 UTC]

Good hint!

Creating a file /etc/portage/env/dev-qt/qtmultimedia-5.15.12 containing:

CFLAGS="-march=native -O2 -pipe"       
CXXFLAGS="-march=native -O2 -pipe"       


works as workaround.

But it should somehow be fixed in the ebuild itself.