Lintian tag information: multiarch-foreign-cmake-file (type: error)

Description (from lintian-explain-tags)

The package is architecture-dependent, ships a cmake file in a public,
architecture-dependent cmake search path and is marked Multi-Arch:
foreign. CMake will be unable to find this file, unless it is installed
for a matching architecture, but the foreign marking says that the
architecture should not matter.

Please remove the Multi-Arch: foreign stanza.

Visibility: error
Show-Always: no
Check: files/multi-arch

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