Incorrectly linting Makefile statements

[tsnowlan]

The linter is matching (presumably on $( ... )) on irrelevant lines in a Makefile and then throwing errors.

Example:

ifneq ($(shell git diff --name-only | wc -l),0)
GIT_STATE := dirty
else
GIT_STATE := clean
endif

This is a valid ifneq block for a Makefile, but it is being evaluated as a shell function. There is no option to disable linting Makefile file types, so the errors keep popping up.