While trying to build cdaudio-ng:

(...)
Entering directory cdaudio-ng.
cdaudio-ng.c:32:32: error: cdio/cdio_unconfig.h: No such file or directory
Successfully generated dependencies.
cdaudio-ng.c:32:32: error: cdio/cdio_unconfig.h: No such file or directory
Failed to compile cdaudio-ng.c (plugin)!
make[5]: *** [cdaudio-ng.plugin.o] Error 1
make[4]: *** [all] Error 2
make[3]: *** [subdirs] Error 2
make[2]: *** [all] Error 2
make[1]: *** [subdirs] Error 2
make: *** [all] Error 2

$ dpkg -l | grep libcd
ii  libcdaudio1                          0.99.12p2-9                       library for controlling a CD-ROM when playing audio CDs
ii  libcddb2                             1.3.2-3                           library to access CDDB data - runtime files
ii  libcddb2-dev                         1.3.2-3                           library to access CDDB data - development files
ii  libcdio-cdda-dev                     0.81-4                            library to read and control digital audio CDs (development files)
ii  libcdio-cdda0                        0.81-4                            library to read and control digital audio CDs
ii  libcdio-dev                          0.81-4                            library to read and control CD-ROM (development files)
ii  libcdio-paranoia0                    0.81-4                            library to read digital audio CDs with error correction
ii  libcdio10                            0.81-4                            library to read and control CD-ROM

# apt-get -t experimental get install libcdio-dev
$ dpkg -l | grep libcd
ii  libcdaudio1                          0.99.12p2-9                       library for controlling a CD-ROM when playing audio CDs
ii  libcddb2                             1.3.2-3                           library to access CDDB data - runtime files
ii  libcddb2-dev                         1.3.2-3                           library to access CDDB data - development files
ii  libcdio-cdda-dev                     0.81-4                            library to read and control digital audio CDs (development files)
ii  libcdio-cdda0                        0.81-4                            library to read and control digital audio CDs
ii  libcdio-dev                          0.83-3                            library to read and control CD-ROM (development files)
ii  libcdio-paranoia0                    0.81-4                            library to read digital audio CDs with error correction
ii  libcdio10                            0.81-4                            library to read and control CD-ROM
ii  libcdio13                            0.83-3                            library to read and control CD-ROM


$ make
Entering directory cdaudio-ng.
Successfully compiled cdaudio-ng.c (plugin).
Successfully linked cdaudio-ng.so.
Leaving directory cdaudio-ng.
$