[Bug 227977] audio/plasma5-plasma-pa org.kde.plasma.volume.appdata.xml absent f16c detect failure

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227977

Adriaan de Groot <adridg at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |adridg at freebsd.org

--- Comment #5 from Adriaan de Groot <adridg at freebsd.org> ---
Please provide the *actual* error messages, instead of paraphrases and
re-wordings. That makes it much easier to actually find the problem.

The problem lies in ${kpackagetool_cmd}, which is producing that error message
(about processor features). Well, not even in kpackagetool, but in QtCore. You
could run the tool by hand with

/usr/local/bin/kpackagetool5 --appstream-metainfo . --appstream-metainfo-output
bogus

To see if that runs without producing the same error message. Basically, you've
told your build of Qt to only work on processors with feature f16c. If it goes
to check, apparently it's not finding that feature.

You should be able to trigger the same with QT_NO_CPU_FEATURE=f16c <any qt
application>.

You might also try building and running this mini-Qt application:

===
#include <cstdio>
#include <QAtomicInteger>

extern void qDetectCpuFeatures();

extern QBasicAtomicInteger<quint64> qt_cpu_features[];

int main(int argc, char **argv)
{
    printf("CPU=%lld\n", qt_cpu_features[0].load());
    qDetectCpuFeatures();
    printf("CPU=%lld\n", qt_cpu_features[0].load());
}
===

(here I'm assuming you did build Qt as 64 bit library).  It should print 0,
then possibly crash on you because your Qt library needs features your CPU
isn't showing, then a large integer with the features your CPU has.

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