https://bugs.kde.org/show_bug.cgi?id=404487
Bug ID: 404487
Summary: When building Qt 5, global make options are ignored
Product: kdesrc-build
Version: Git
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
When building Qt 5 with kdesrc-build, the global make options appear to be
ignored. This manifests itself in noticeably less fan noise than expected when
you configured a global `-j12` but effectively get `-j1`. It also takes a lot
longer.
STEPS TO REPRODUCE
1. On fresh system without Qt set up kdesrc-build
2. Make sure to include kf5-qt5-build-include and qt5-build-include
3. Run kdesrc-build qt5
OBSERVED RESULT
On an 8-core CPU, the load as reported by ksysguard stays effectively pegged at
~ 12% (i.e. ~ 1 core)
EXPECTED RESULT
I expect the CPU to be given a bit more of a workout with a load of roughly
~100%.
ADDITIONAL INFORMATION
This issue can be worked around by manually configuring kdesrc-build.rc with:
```
options qt5-set
make-options -j12
end options
```
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