maintainer-feedback requested: [Bug 231818] devel/qt5-qdbus: fix build when base GCC is used

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked kde at FreeBSD.org for
maintainer-feedback:
Bug 231818: devel/qt5-qdbus: fix build when base GCC is used
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231818



--- Description ---
Similarly to other Qt5 ports, USES=compiler:c++17-lang is necessary.

Tested on powerpc64 and amd64.

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