=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Checksum SHA1 OK for bbkeys-0.8.6.tar.gz
=> Checksum RMD160 OK for bbkeys-0.8.6.tar.gz
===> Installing dependencies for bbkeys-0.8.6nb2
=> Build dependency x11-links>=0.72: found x11-links-0.74
=> Full dependency perl>=5.0: found perl-5.16.3
===> Overriding tools for bbkeys-0.8.6nb2
===> Extracting for bbkeys-0.8.6nb2
===> Patching for bbkeys-0.8.6nb2
=> Applying pkgsrc patches for bbkeys-0.8.6nb2
===> Creating toolchain wrappers for bbkeys-0.8.6nb2
ERROR: zlib>=1.1.4nb1 is not installed; can't buildlink files.
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/wm/bbkeys
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/wm/bbkeys