Error in trace mode

Piet van Oostrum piet-l at
Fri Feb 8 22:50:32 UTC 2019

I am testing a Portfile, and running with trace mode:

sudo port -vst install

I get this error message:

Warning: The following existing file was hidden from the build system by trace mode:

aclocal is part of automake, and I have automake as build dependency:

depends_build       port:autoconf \

use_autoconf        yes
autoconf.cmd        ./bootstrap

I have no idea how to get rid of this warning. Without -t the port installs without problems.
Can anyone give me an idea how to solve this?
Piet van Oostrum <piet-l at>
PGP key: [8DAE142BE17999C4]

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