gnulib-tool --conditional-dependencies --test problem

[Paul Eggert]

When I run this command:

./gnulib-tool --conditional-dependencies --test regex

on Fedora 33, it fails as shown in the attached file. The problem occurs 
because --test brings in binary-io for some reason, but doesn't bring in 
the fcntl-h module that binary-io depends on.

A simple workaround would be to have gnulib-tool's --test option disable 
the conditionalization of dependencies, or to have gnulib-tool diagnose 
and fail any attempt to combine the two options (which it already does 
for --test and --gnu-make). But is there a better way?

gnulib-tool-log.txt
Description: Text document