maintainer-feedback requested: [Bug 263775] devel/qcoro: fix build with libc++

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-kde (Team)
<kde at FreeBSD.org> for maintainer-feedback:
Bug 263775: devel/qcoro: fix build with libc++
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263775



--- Description ---
Fix build with apple-clang

libc++ doesn't implement any concepts yet, use variable templates
instead.

https://github.com/danvratil/qcoro/commit/b4abc587410320408c8f781061c503f4f3e78
b19