===>  License GPLv2 accepted by the user
===>   packetdrill-0cipiertest depends on file: /usr/local/sbin/pkg - found
===> Fetching all distfiles required by packetdrill-0cipiertest for building
===>  Extracting for packetdrill-0cipiertest
=> SHA256 Checksum OK for freebsd-net-packetdrill-0cipiertest-570c391_GH0.tar.gz.
===>  Patching for packetdrill-0cipiertest
===>   packetdrill-0cipiertest depends on executable: bison - found
===>  Configuring for packetdrill-0cipiertest
===>  Building for packetdrill-0cipiertest
install  -m 0644 /packetdrill-0cipiertest-port/files/Makefile /packetdrill-0cipiertest-port/files/Makefile.inc /wrkdirs/packetdrill-0cipiertest-port/work/packetdrill-570c391/gtests/net/packetdrill
*** Error code 71

Stop.
make: stopped in /packetdrill-0cipiertest-port
1