kompilerfehler bei Graphtft

make[1]: Entering directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'
g++ -O3 -Wall -Woverloaded-virtual -c -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"graphtft"' -DHAVE_IMLIB -I../../../include -I../../../../DVB/include -I. -I./imlibrenderer -I./imlibrenderer/fbrenderer -I./imlibrenderer/dvbrenderer -I./dfbrenderer -I/src -I../../../../ffmpeg-0.4.8/libavcodec -o display.o display.c
In file included from display.c:33:
../../../include/vdr/menu.h:64: error: 'cSubMenu' is used as a type, but is not
   defined as a type.
make[1]: *** [display.o] Error 1
make[1]: Leaving directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'

make[1]: Entering directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'
g++ -O3 -Wall -Woverloaded-virtual -c -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"graphtft"' -DHAVE_IMLIB -I../../../include -I../../../../DVB/include -I. -I./imlibrenderer -I./imlibrenderer/fbrenderer -I./imlibrenderer/dvbrenderer -I./dfbrenderer -I/src -I../../../../ffmpeg/libavcodec -o graphtft.o graphtft.c
graphtft.c: In member function `virtual bool cPluginGraphTFT::Start()':
graphtft.c:206: error: `readline' undeclared (first use this function)
graphtft.c:206: error: (Each undeclared identifier is reported only once for
   each function it appears in.)
make[1]: *** [graphtft.o] Error 1
make[1]: Leaving directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'

make[1]: Entering directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'
g++ -O3 -Wall -Woverloaded-virtual -c -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"graphtft"' -DHAVE_IMLIB -I../../../include -I../../../../DVB/include -I. -I./imlibrenderer -I./imlibrenderer/fbrenderer -I./imlibrenderer/dvbrenderer -I./dfbrenderer -I/src -I../../../../ffmpeg/libavcodec -o graphtft.o graphtft.c
g++ -O3 -Wall -Woverloaded-virtual -c -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"graphtft"' -DHAVE_IMLIB -I../../../include -I../../../../DVB/include -I. -I./imlibrenderer -I./imlibrenderer/fbrenderer -I./imlibrenderer/dvbrenderer -I./dfbrenderer -I/src -I../../../../ffmpeg/libavcodec -o display.o display.c
In file included from display.c:33:
../../../include/vdr/menu.h:64: error: 'cSubMenu' is used as a type, but is not
   defined as a type.
make[1]: *** [display.o] Error 1
make[1]: Leaving directory `/usr/local/src/vdr-1.3.34/PLUGINS/src/graphtft-0.0.8'