wireshark vs. recent qt5 update

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

The recent update of "x11/qt5*" in pkgsrc-HEAD breaks the build of
"net/wireshark" with:

[...]
  CXX      preference_editor_frame.o
packet_format_group_box.cpp: In constructor 'PacketFormatGroupBox::PacketFormatGroupBox(QWidget*)':
packet_format_group_box.cpp:21:18: error: aggregate 'QStyleOption style_opt' has incomplete type and cannot be defined
     QStyleOption style_opt;
                  ^
Makefile:2503: recipe for target 'packet_format_group_box.o' failed
gmake[2]: *** [packet_format_group_box.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[2]: Leaving directory '/tmp/pkgsrc/net/wireshark/work/wireshark-2.6.1/ui/qt'
Makefile:3387: recipe for target 'all-recursive' failed
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory '/tmp/pkgsrc/net/wireshark/work/wireshark-2.6.1'
Makefile:1650: recipe for target 'all' failed
gmake: *** [all] Error 2
*** Error code 2

Stop.
make[1]: stopped in /x/pkgsrc/net/wireshark
*** Error code 1

Stop.
make: stopped in /x/pkgsrc/net/wireshark


Observed on netbsd-8/amd64.

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