=> Bootstrap dependency digest>=20010302: found digest-20111104
=> Bootstrap dependency fetch-[0-9]*: found fetch-1.7
=> Checksum SHA1 OK for twin-src-3.1.14.tar.gz
=> Checksum RMD160 OK for twin-src-3.1.14.tar.gz
===> Installing dependencies for twin-3.1.14nb4
=> Build dependency flex>=2.5.4a: found flex-2.5.35nb2
=> Build dependency bison>=1.0: found bison-2.5nb1
=> Build dependency kbproto>=1.0.2: found kbproto-1.0.5
=> Build dependency xproto>=7.0.9: found xproto-7.0.18
=> Build dependency xcb-proto>=1.4: found xcb-proto-1.6
=> Build dependency libXt>=1.0.0: found libXt-1.0.8
=> Build dependency checkperms>=1.1: found checkperms-1.11
=> Full dependency libX11>=1.1: found libX11-1.3.5
===> Overriding tools for twin-3.1.14nb4
===> Extracting for twin-3.1.14nb4
===> Patching for twin-3.1.14nb4
=> Applying pkgsrc patches for twin-3.1.14nb4
===> Creating toolchain wrappers for twin-3.1.14nb4
===> Configuring for twin-3.1.14nb4
=> Modifying GNU configure scripts to avoid --recheck
=> Replacing config-guess with pkgsrc versions
=> Replacing config-sub with pkgsrc versions
=> Replacing install-sh with pkgsrc version
=> Checking for portability problems in extracted files
creating cache ./config.cache
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking build system type... x86_64-unknown-linux-gnu
configure: error: You must add this platform to configure.in.
*** Error code 1

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

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