CMake: Glibc Overlay #84737
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CMake: Glibc Overlay #84737
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Platform availability is an Apple concept because Swift is shipped as part of the OS. It doesn't make sense to check or to warn on other platforms. Only checking and setting it for Apple platforms.
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Explicit module builds crash the compiler when building the glibc overlay library. The crash occurs in the Swift driver dependency scanner. It appears to be related to vfs overlays, modulemaps, injected header files, and explicit module builds. This is odd though because the Android builds also have this combination, but work.
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Adding a new glibc overlay for Linux builds. We will eventually need one for Musl, and if someone really wants to, LLVM and cosmopolitan libcs are also out there.
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Adding a Glibc overlay for Linux. As part of this, I bumped the stdlib version override to only apply to Apple platforms since that's the only place where those have meaning. This way we don't see warnings about not recognizing the other platforms.