pluto disk drive fails to build under precise
gcc -W -Wall -ggdb3 disc_unlock.c -ldvdread -o disc_unlock
/usr/lib/gcc/i686-linux-gnu/4.6/../../../../lib/libdvdread.so: undefined reference to `dlopen'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../../lib/libdvdread.so: undefined reference to `dlclose'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../../lib/libdvdread.so: undefined reference to `dlsym'
collect2: ld returned 1 exit status
make: *** [disc_unlock] Error 1
make -f Makefile.disc_unlock ***FAILED***
Error: make -f Makefile.disc_unlock failed!
BuildSource failed for: 122 Pluto Disk Drive
Aborting!