pkg/52794: misc/kdeartwork4 build issue with Eigen2?

[mlh%goathill.org@localhost]

>Number:         52794
>Category:       pkg
>Synopsis:       misc/kdeartwork4 build issue with Eigen2?
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Dec 08 21:45:00 +0000 2017
>Originator:     MLH
>Release:        NetBSD 8.99.7 Thu Nov 16 11:16:40 EST 2017
>Organization:
>Environment:
System: NetBSD 8.99.7 NetBSD 8.99.7 (HDMIAUDIO) #3: Thu Nov 16 11:16:40 EST 2017 ... amd64
Architecture: x86_64
Machine: amd64
>Description:

make misc/kdeartwork4:
...
Generating rotation.moc
[ 38%] Built target krotation.kss_automoc
[ 38%] Generating ui_rotationcfg.h
Scanning dependencies of target krotation.kss
[ 39%] Building CXX object
kscreensaver/kdesavers/CMakeFiles/krotation.kss.dir/krotation.kss_automoc.o
[ 40%] Building CXX object
kscreensaver/kdesavers/CMakeFiles/krotation.kss.dir/rotation.o
In file included from
/pkg_comp/obj/pkgsrc/misc/kdeartwork4/default/kdeartwork-15.08.3/kscreensaver/kdesavers/rotation.cpp:47:0:
/pkg_comp/obj/pkgsrc/misc/kdeartwork4/default/.buildlink/include/eigen3/Eigen/Core:321:2:

error: #error Eigen2-support is only available up to version 3.2. Please go to
"http://eigen.tuxfamily.org/index.php?title=Eigen2"; for further information
 #error Eigen2-support is only available up to version 3.2. Please go to
"http://eigen.tuxfamily.org/index.php?title=Eigen2"; for further information
  ^

>How-To-Repeat:
Build misc/kdeartwork4 as part of meta-pkgs/kde4, which now builds eigen3-3.3.4

>Fix: