All reports of old-style-config-script-multiarch-path for the archive. The extended description of this tag is:
The following file is an old style config file, used to retrieve information about installed libraries in the system. It is typically used to compile and link against one or more libraries.
This old style config file contains a multi-arch path and the package is declared Multi-arch.
This tag has not been emitted in any package tested by Lintian.