Where can I get these header files?

Question

I'm attempting to compile SndObj, and I need some header files. Which Debian packages do I need to obtain all the missing header files?

Checking for C header file alsa/asoundlib.h... (cached) no
Checking for C header file soundcard.h... (cached) no
Checking for C header file jack/jack.h... (cached) no
Checking for C header file m_pd.h... (cached) no
Checking for C header file ladspa.h... (cached) no

Answer 1

Try the Debian package contents search page

(give a man a fish, etc.)

Answer 2

I used

apt-file search asoundlib

Seems at least that file is in libasound-dev .