=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Checksum SHA1 OK for xm71020s.zip
=> Checksum RMD160 OK for xm71020s.zip
===> Installing dependencies for xm7-1020s
=> Tool dependency unzip-[0-9]*: found unzip-6.0nb1
=> Build dependency nkf>=1.7: found nkf-2.12nb1
=> Build dependency x11-links>=0.72: found x11-links-0.74
===> Overriding tools for xm7-1020s
===> Extracting for xm7-1020s
cd /usr/pkgsrc/work/emulators/xm7/work && mv linux/* vm
===> Patching for xm7-1020s
=> Applying pkgsrc patches for xm7-1020s
===> Creating toolchain wrappers for xm7-1020s
ERROR: zlib>=1.1.4nb1 is not installed; can't buildlink files.
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/emulators/xm7
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/emulators/xm7