ERROR: This package has set PKG_FAIL_REASON:
ERROR: wavesurfer-1.8.5 has an unacceptable license condition: 
ERROR:     esdl-license
ERROR: You can mark the license ``esdl-license'' as acceptable by adding
ERROR:     ACCEPTABLE_LICENSES+= esdl-license
ERROR: to /etc/mk.conf or by adding
ERROR:     ACCEPTABLE_LICENSES= esdl-license
ERROR: to /etc/pkg_install.conf.
ERROR: The following command will show you the license text:
ERROR:     /usr/bin/make show-license
*** Error code 1

Stop.
make: stopped in /shared/pkgsrc/audio/wavesurfer