There is few autodependencies in configure.ac: AC_CHECK_LIB(zita-resampler, _Z28zita_resampler_major_versionv, [ HAVE_ZITA_RESAMPLE=true AC_MSG_RESULT(yes) ]) AC_CHECK_LIB(zita-alsa-pcmi, _Z28zita_alsa_pcmi_major_versionv, [ HAVE_ZITA_ALSA_PCMI=true AC_MSG_RESULT(yes) ]) If both of these libs are installed (e.g. from proaudio overlay), then jack tries to compile with zalsa feature.
this has been fixed in 0.125.0-r1