All reports of debian-rules-sets-dpkg-architecture-variable for the archive. The extended description of this tag is:
The debian/rules file sets one or more dpkg-architecture variables such as DEB_BUILD_ARCH.
These variables are pre-initialized in the environment when running under dpkg-buildpackage - avoiding these assignments can reduce package build time.
Please use:include /usr/share/dpkg/architecture.mk
instead, or replace the assignment operator with ?=.
Refer to the dpkg-architecture(1) manual page for details.
This tag has not been emitted in any package tested by Lintian.