OpenBSD 7.8 will require OpaquePointer for FILE. #84478
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@swift-ci please test. |
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@swift-ci please test macOS platform. |
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We need to disable SwiftReflectionTest on OpenBSD < 7.8 with this change as well, because there will still be a type mismatch on the Swift side as that calls fwrite/fflush directly. |
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OpenBSD 7.8 snapshots hide the type information for FILE. Therefore, the types for the standard stdio streams should (regrettably) be OpaquePointer, due to the well-discussed issue of losing type information for forward-declared C types. We explicitly drop to void * in the LibcOverlayShims for backwards compatibility, since OpenBSD 7.8 is not yet released. However, because SwiftReflectionTest uses libc FILE functions like fwrite and fflush directly, this means that building this on 7.7 will still fail because types will mismatch. Instead of adding extra shims, let's just skip building SwiftReflectionTest on 7.7.
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OpenBSD 7.8 snapshots hide the type information for FILE. Therefore, the types for the standard stdio streams should (regrettably) be OpaquePointer, due to the well-discussed issue of losing type information for forward-declared C types.
We explicitly drop to void * in the LibcOverlayShims for backwards compatibility, since OpenBSD 7.8 is not yet released.