Building mate and xfce4 stops at mate-settings-daemon

[Mandacarú Cascavel <mancasc%yahoo.com.br@localhost>]

Hi, Friends.

I'm trying to build mate and xfce4 from pkgsrc, but compilation stops at 
mate-settings-daemon, writing the following log: (NetBSD-current, amd64)


checking for IceConnectionNumber in -lICE... yes
checking for XINPUT... yes
checking for FONTCONFIG... yes
checking X11/extensions/XKB.h usability... yes
checking X11/extensions/XKB.h presence... yes
checking for X11/extensions/XKB.h... yes
checking for LIBMATEKBDUI... yes
checking for LIBCANBERRA... yes
checking for LIBMATEMIXER... yes
checking for GIOUNIX... yes
checking for NSS... yes
checking for POLKIT... no
configure: error: PolicyKit support explicity enabled but not available
*** Error code 1

Stop.
make[3]: stopped in /usr/pkgsrc/x11/mate-settings-daemon
WARNING: *** Please consider adding c++ to USE_LANGUAGES in the package 
Makefile.
*** Error code 1

Stop.
make[2]: stopped in /usr/pkgsrc/x11/mate-settings-daemon
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/x11/mate-applets
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/meta-pkgs/mate

Thanks in advance,

Mandacarú