=> Bootstrap dependency digest>=20010302: found digest-20111104
=> Bootstrap dependency fetch-[0-9]*: found fetch-1.7
WARNING: [license.mk] Every package should define a LICENSE.
=> Checksum SHA1 OK for ns-src-2.35.tar.gz
=> Checksum RMD160 OK for ns-src-2.35.tar.gz
===> Installing dependencies for ns-2.35
=> Build dependency nbpatch-[0-9]*: found nbpatch-20100124
=> Build dependency renderproto>=0.9.3nb1: found renderproto-0.11.1
=> Build dependency kbproto>=1.0.2: found kbproto-1.0.6
=> Build dependency xproto>=7.0.9: found xproto-7.0.23nb2
=> Build dependency xcb-proto>=1.4: found xcb-proto-1.8
=> Build dependency xextproto>=7.0: found xextproto-7.2.1
=> Build dependency inputproto>=1.4: found inputproto-2.2
=> Build dependency libXt>=1.0.0: found libXt-1.1.3
=> Build dependency checkperms>=1.1: found checkperms-1.11
=> Full dependency tcl-tclcl>=1.19nb1: found tcl-tclcl-1.19nb1
===> Overriding tools for ns-2.35
===> Extracting for ns-2.35
===> Patching for ns-2.35
=> Applying pkgsrc patches for ns-2.35
===> Creating toolchain wrappers for ns-2.35
ERROR: libpcap>=0.5.0 is not installed; can't buildlink files.
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/net/ns
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/net/ns