building net/ekiga fails.

Fix: 

I think this is caused by the update of devel/pwlib.
	Recent codes are already fixed, as I guess.
	Rolling back devel/pwlib is the easiest way.
How-To-Repeat: 	% cd /usr/ports/net/ekiga
	% make
	...
	if c++ -DHAVE_CONFIG_H -I. -I. -I.. -Iclients/ -Icomponents/ -Idevices/ -Iendpoints/ -Igui/ -I../src -I../lib -I../lib/gmconf -I../lib/gmcontacts -I../lib/gui -I../lib/xdap  -D_THREAD_SAFE -D_REENTRANT -DORBIT2=1 -I/usr/local/include/gtk-2.0 -I/usr/local/lib/gtk-2.0/include -I/usr/local/include/atk-1.0 -I/usr/local/include/cairo -I/usr/local/include/pango-1.0 -I/usr/local/include -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -I/usr/local/include/freetype2 -I/usr/local/include/gconf/2 -I/usr/local/include/orbit-2.0 -I/usr/local/include/libgnome-2.0 -I/usr/local/include/gnome-vfs-2.0 -I/usr/local/lib/gnome-vfs-2.0/include -I/usr/local/include/libbonobo-2.0 -I/usr/local/include/bonobo-activation-2.0 -I/usr/local/include/libgnomeui-2.0 -I/usr/local/include/libart-2.0 -I/usr/local/include/gnome-keyring-1 -I/usr/local/include/libbonoboui-2.0 -I/usr/local/include/libgnomecanvas-2.0 -I/usr/local/include/libxml2 -I/usr/local/include/gail-1.0   -DORBIT2=1 -D_REENTRA!
 NT -I/usr/local/include/evolution-data-server-1.12 -I/usr/local/include/libbonobo-2.0 -I/usr/local/include/libgnome-2.0 -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -I/usr/local/include/orbit-2.0 -I/usr/local/include/bonobo-activation-2.0 -I/usr/local/include/gconf/2 -I/usr/local/include/gnome-vfs-2.0 -I/usr/local/lib/gnome-vfs-2.0/include -I/usr/local/include -I/usr/local/include/libxml2   -I/usr/local/include/dbus-1.0 -I/usr/local/include/dbus-1.0/include -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include   -DHAS_DBUS -D_REENTRANT -D_THREAD_SAFE -I/usr/local/include -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include   -DHAS_AVAHI  -I/usr/local/include/ptlib -I/usr/local/include/ptclib -I/usr/local/include  -I/usr/local/include/opal -I/usr/local/include/SDL -I/usr/local/include -D_GNU_SOURCE=1 -D_REENTRANT -DHAS_SDL  -DPTRACING -DNDEBUG -Wall -Os -g -O1 -I/usr/local/work/usr/ports/devel/pwlib/work/ptlib_v1_12_0/include -I/usr/lo!
 cal/include -DP_USE_PRAGMA -D_REENTRANT -pthread -fno-exceptio!
 ns -DDATA_DIR=\""/usr/local/share"\" -DSCHEMA_AGE=60   -I/usr/local/include  -O2 -fno-strict-aliasing -pipe -MT videoinput.o -MD -MP -MF ".deps/videoinput.Tpo" -c -o videoinput.o `test -f 'devices/videoinput.cpp' || echo './'`devices/videoinput.cpp; \        then mv -f ".deps/videoinput.Tpo" ".deps/videoinput.Po"; else rm -f ".deps/videoinput.Tpo"; exit 1; fi

	devices/fakevideoinput.cpp: In member function `void PVideoInputDevice_Picture::WaitFinishPreviousFrame()':
	devices/fakevideoinput.cpp:336: error: `frameTimeError' was not declared in this scope
	devices/fakevideoinput.cpp:338: error: `msBetweenFrames' was not declared in this scope
	devices/fakevideoinput.cpp:338: warning: unused variable 'msBetweenFrames'
	devices/fakevideoinput.cpp:343: error: `previousFrameTime' was not declared in this scope
	devices/fakevideoinput.cpp:344: error: `frameTimeError' was not declared in this scope
	devices/fakevideoinput.cpp:344: error: `msBetweenFrames' was not declared in this scope
	devices/fakevideoinput.cpp:344: warning: unused variable 'msBetweenFrames'
	gmake[3]: *** [fakevideoinput.o] error 1