Hiding a Make function

[AB]

Hi:
I wanted to see if we have a way to hide/error out usage of a make
function like "wildcard' in a specific Makefile. For example, I would
like to have the following behavior from test.mk:

%< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %<

#Error out if wildcard is used in "test.mk"
LIST := $(wildcard *.txt)

#test.mk includes foo.mk, which can use wildcard
include foo.mk

%< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %< %<

Any comments on how this can be achieved.

Thanks