Swift: Fix regression in linking to interface libraries (!5027) · Merge requests · CMake / CMake

Brad King requested to merge brad.king/cmake:swift-link-iface into master Jul 17, 2020

Since !4320 (merged) we internally call GetAllConfigCompileLanguages on all directly linked targets without checking if they are interface libraries that don't compile at all. That violates an internal assumption and assertion.

Fixes: #20977 (closed)
Backport: release

Swift: Fix regression in linking to interface libraries

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