[mythtv] SignalMonitor::IsSupported and --disable-backend

[Chris Strom]

With svn 7368, having configured with --disable-backend, I receive the
following (even after a make distclean):

g++  -o mythepg main.o    -L/usr/qt/3/lib -L../../libs/libmyth
-L../../libs/libmythtv -L../../libs/libavutil -L../../libs/libavcodec
-L../../libs/libavformat -lmythtv-0.18 -lmythavformat-0.18
-lmythavutil-0.18 -lmythavcodec-0.18 -lmyth-0.18 -lfreetype -lmp3lame
-lasound -L/usr/X11R6/lib -lXinerama -lXv -lXxf86vm -lqt-mt -lXext
-lX11 -lm -lpthread
../../libs/libmythtv/libmythtv-0.18.so: undefined reference to
`SignalMonitor::IsSupported(QString)'
collect2: ld returned 1 exit status
make[2]: *** [mythepg] Error 1
make[2]: Leaving directory `/home/cstrom/mythtv/mythtv/programs/mythepg'
make[1]: *** [sub-mythepg] Error 2
make[1]: Leaving directory `/home/cstrom/mythtv/mythtv/programs'
make: *** [sub-programs] Error 2


Re-configuring without --disable-backend resolves the problem.

-Chris