maintainer-feedback requested: [Bug 225697] devel/qt5-buildtools fails configure

[bugzilla-noreply at freebsd.org]

Mikhail Teterin <mi at FreeBSD.org> has reassigned Bugzilla Automation
<bugzilla at FreeBSD.org>'s request for maintainer-feedback to kde at FreeBSD.org:
Bug 225697: devel/qt5-buildtools fails configure
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225697



--- Description ---
Not sure, what is wrong, but my attempts to (re)build the port are failing at
configure-stage:

# make
===>   qt5-buildtools-5.9.4 depends on package: pkgconf>=1.3.0_1 - found
===>   qt5-buildtools-5.9.4 depends on file: /opt/lib/qt5/bin/qmake - found
===>   qt5-buildtools-5.9.4 depends on package: perl5>=5.26<5.27 - found
===>   qt5-buildtools-5.9.4 depends on file: /opt/bin/ccache - found
===>  Configuring for qt5-buildtools-5.9.4
/bin/mkdir -p /var/ports/devel/qt5-buildtools/work/qtbase-opensource-src-5.9.4
echo 'CMAKE_MODULE_TESTS = -' >
/var/ports/devel/qt5-buildtools/work/qtbase-opensource-src-5.9.4/.qmake.cache
echo 'QMAKE_LIBDIR_FLAGS =
-L/var/ports/devel/qt5-buildtools/work/qtbase-opensource-src-5.9.4/lib' >>
/var/ports/devel/qt5-buildtools/work/qtbase-opensource-src-5.9.4/.qmake.cache
***Unknown option --
Usage:
/var/ports/devel/qt5-buildtools/work/qtbase-opensource-src-5.9.4/bin/qmake
[mode] [options] [files]

QMake has two modes, one mode for generating project files based on
some heuristics, and the other for generating makefiles. Normally you
shouldn't need to specify a mode, as makefile generation is the default
mode for qmake, but you may use this to test qmake on an existing project

Mode:
  -project	 Put qmake into project file generation mode
		 In this mode qmake interprets files as files to
[....]

The only obvious "deviation from norm" on my system is that LOCALBASE (and,
consequently, PREFIX) are set to "/opt" rather than "/usr/local".

Please, advise.