Build error under Ubuntu 12.04

When compiling the latest source files (make install) under fresh installed and 
latest Ubuntu Beta 12.04 the following message appears in the terminal:

"libtool: link: g++ -g -O2 -o boblightd condition.o log.o misc.o mutex.o 
thread.o timer.o serialport.o timeutils.o main.o tcpsocket.o messagequeue.o 
client.o light.o configuration.o device.o devicepopen.o deviceltbl.o 
devicers232.o devicedioder.o signaltimer.o devicesound.o  -lportaudio -ldl -lm 
-lrt -lpthread
deviceltbl.o: In function `CDeviceLtbl::SetupDevice()':
/home/username/boblight-read-only/src/device/deviceltbl.cpp:34: undefined 
reference to `CDeviceRS232::OpenSerialPort()'
devicedioder.o: In function `CDeviceDioder::SetupDevice()':
/home/username/boblight-read-only/src/device/devicedioder.cpp:61: undefined 
reference to `CDeviceRS232::OpenSerialPort()'
collect2: ld returned 1 exit status

On the same system using Ubuntu 10.04 the problem did not occur!
Tried to search for such an error but without success so far...

Original issue reported on code.google.com by globalis...@googlemail.com on 3 Apr 2012 at 4:24

HendrikRoth / boblight

Build error under Ubuntu 12.04 #35