=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Checksum SHA1 OK for ratmen-2.2.2.tar.gz
=> Checksum RMD160 OK for ratmen-2.2.2.tar.gz
===> Installing dependencies for ratmen-2.2.2
=> Build dependency x11-links>=0.72: found x11-links-0.74
===> Overriding tools for ratmen-2.2.2
===> Extracting for ratmen-2.2.2
===> Patching for ratmen-2.2.2
=> Applying pkgsrc patches for ratmen-2.2.2
===> Creating toolchain wrappers for ratmen-2.2.2
ERROR: zlib>=1.1.4nb1 is not installed; can't buildlink files.
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/x11/ratmen
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/x11/ratmen