=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
=> Checksum SHA1 OK for courier-unicode-1.4.tar.bz2
=> Checksum RMD160 OK for courier-unicode-1.4.tar.bz2
=> Checksum SHA512 OK for courier-unicode-1.4.tar.bz2
===> Installing dependencies for courier-unicode-1.4
=> Tool dependency automake>=1.9: found automake-1.15nb4
=> Tool dependency autoconf>=2.58: found autoconf-2.69nb7
=> Tool dependency gmake>=3.81: found gmake-4.1nb3
=> Tool dependency checkperms>=1.1: found checkperms-1.11nb1
=> Build dependency cwrappers>=20150314: found cwrappers-20170112
===> Overriding tools for courier-unicode-1.4
===> Extracting for courier-unicode-1.4
===> Patching for courier-unicode-1.4
===> Creating toolchain wrappers for courier-unicode-1.4
===> Configuring for courier-unicode-1.4
(cd /data/scratch/mail/courier-unicode/work/courier-unicode-1.4; autoconf; aclocal; automake)
configure.ac:16: warning: macro 'AM_PROG_LIBTOOL' not found in library
Makefile.am:54: error: Libtool library used but 'LIBTOOL' is undefined
Makefile.am:54:   The usual way to define 'LIBTOOL' is to add 'LT_INIT'
Makefile.am:54:   to 'configure.ac' and run 'aclocal' and 'autoconf' again.
Makefile.am:54:   If 'LT_INIT' is in 'configure.ac', make sure
Makefile.am:54:   its definition is in aclocal's search path.
*** Error code 1

Stop.
make[1]: stopped in /data/pkgsrc/mail/courier-unicode
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/mail/courier-unicode