make[2]: Leaving directory `/var/tmp/portage/jack-audio-connection-kit-0.102.20/work/jack-audio-connection-kit-0.102.20/libjack'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/jack-audio-connection-kit-0.102.20/work/jack-audio-connection-kit-0.102.20'
make: *** [all] Error 2

!!! ERROR: media-sound/jack-audio-connection-kit-0.102.20 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  jack-audio-connection-kit-0.102.20.ebuild, line 115:   Called die

!!! compilation failed
!!! If you need support, post the topmost build error, and the call stack if relevant.

!!! This ebuild is from an overlay: '/usr/portage/local/layman/pro-audio'