debian-rules-uses-special-shell-variable

The rules file use the make variable $(_).

According to Policy 4.9, 'invoking either of make -f debian/rules <...> or ./debian/rules <args...>' must result in identical behavior'. The $_ variable is an easy way to violate that rule unwittingly.

If the rules file uses $(dir $(_)) to discover the directory containing the source package (for example, in order to implement the get-orig-source target) please replace it with $(dir $(firstword $(MAKEFILE_LIST))).

Severity: warning
Experimental: false
Renamed from: debian-rules-should-not-use-underscore-variable

See also