=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Checksum BLAKE2s OK for proftpd-1.3.8b.tar.gz
=> Checksum SHA512 OK for proftpd-1.3.8b.tar.gz
===> Installing dependencies for proftpd-1.3.8b
==========================================================================
The supported build options for proftpd are:

	inet6 pam

The currently selected options are:

	inet6 pam

You can select which build options to use by setting PKG_DEFAULT_OPTIONS
or the following variable.  Its current value is shown:

	PKG_OPTIONS.proftpd (not defined)

==========================================================================
==========================================================================
The following variables will affect the build process of this package,
proftpd-1.3.8b.  Their current value is shown below:

        * CURSES_DEFAULT = curses
        * PAM_DEFAULT = openpam
        * SSLBASE = /usr
        * SSLCERTBUNDLE (not defined)
        * SSLCERTS = /etc/openssl/certs
        * SSLDIR = /etc/openssl
        * SSLKEYS = /etc/openssl/private
        * VARBASE = /var

Based on these variables, the following variables have been set:

        * CURSES_TYPE = curses
        * PAMBASE (defined, but empty)

You may want to abort the process now with CTRL-C and change the value
of variables in the first group before continuing.  Be sure to run
`/usr/bin/make clean' after the changes.
==========================================================================
=> Tool dependency libtool-base>=2.4.2nb9: found libtool-base-2.4.7nb1
=> Tool dependency mktools-[0-9]*: found mktools-20220614
=> Tool dependency autoconf>=2.50: NOT found
=> Verifying /nonexistent for ../../devel/autoconf
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/autoconf
*** Error code 2

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/net/proftpd