[...]

t5Widgets -lQt5Gui -lQt5Network -lQt5Core -lGL -lpthread 
x86_64-tld-linux-g++ -Wl,--as-needed -Wl,--no-copy-dt-needed-entries -Wl,-z,relro -Wl,-z,combreloc -Wl,-O1 -fuse-ld=gold -Wl,--enable-new-dtags -o qquickviewcomparison .obj/main.o .obj/mainwindow.o .obj/logo.o .obj/fbitem.o .obj/qrc_qquickviewcomparison.o .obj/moc_fbitem.o   -L/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/lib -lQt5QuickWidgets -L/usr/lib64 -lQt5Quick -lQt5Qml -lQt5Widgets -lQt5Gui -lQt5Network -lQt5Core -lGL -lpthread 
make[4]: Leaving directory '/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/examples/quick/quickwidgets/quickwidget'
make[4]: Leaving directory '/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/examples/quick/quickwidgets/qquickviewcomparison'
make[3]: Leaving directory '/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/examples/quick/quickwidgets'
make[2]: Leaving directory '/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/examples/quick'
make[1]: *** [Makefile:97: sub-quick-make_first] Error 2
make[1]: Leaving directory '/tmp/B.VauGGQ/BUILD/qtdeclarative-everywhere-src-5.11.1/examples'
make: *** [Makefile:99: sub-examples-make_first] Error 2
error: Bad exit status from /tmp/B.VauGGQ/BUILD/tmp/rpm-tmp.35496 (%build)
RPM build errors:
    Bad exit status from /tmp/B.VauGGQ/BUILD/tmp/rpm-tmp.35496 (%build)
ended at: Thu Feb 28 11:00:23 2019, done in 0:05:23.897119
error: No files produced.
+ chmod -R u+rwX /tmp/B.VauGGQ/BUILD
+ rm -rf /tmp/B.VauGGQ/tmp /tmp/B.VauGGQ/BUILD
+ rm -rf /tmp/B.VauGGQ
Begin-TLD-Builder-Info
Build-Time: user:995.43s sys:67.11s real:337.74s (faults io:244 non-io:38069129)
End-TLD-Builder-Info