Workaround broken glibc modulemap #5005
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We have been running into modularization issues on newer versions of various Linux distros, resulting in the compiler saying that the Glibc module doesn't have a SOCK_STREAM or SOCK_DGRAM. From some poking around, the definition is now coming from the CoreFoundation module as far as Swift is concerned. This is ultimately because our modulemap for Glibc is bad, but also means that I can't bring up Swift 6 on all of the Linux distros that 5.10 has support for. This workaround removes the explicit module name from `SOCK_STREAM` and renames it to `FOUNDATION_SOCK_STREAM` to avoid an ambiguous name, and completely removes `SOCK_DGRAM`. Both SOCK_STREAM and SOCK_DGRAM are fileprivates, so changing them will have no visible external effect. It is true that if another header somewhere defines `SOCK_STREAM`, we may pick it up instead of the definition from the glibc module, but that will also cause some nasty surprises to anyone using that header in C, so it is unlikely. Fixes: rdar://128079849
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@swift-ci please test |
parkera
approved these changes
Jul 17, 2024
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We have been running into modularization issues on newer versions of various Linux distros, resulting in the compiler saying that the Glibc module doesn't have a SOCK_STREAM or SOCK_DGRAM. From some poking around, the definition is now coming from the CoreFoundation module as far as Swift is concerned. This is ultimately because our modulemap for Glibc is bad, but also means that I can't bring up Swift 6 on all of the Linux distros that 5.10 has support for.
This workaround removes the explicit module name from
SOCK_STREAMand renames it toFOUNDATION_SOCK_STREAMto avoid an ambiguous name, and completely removesSOCK_DGRAM.Both SOCK_STREAM and SOCK_DGRAM are fileprivates, so changing them will have no visible external effect. It is true that if another header somewhere defines
SOCK_STREAM, we may pick it up instead of the definition from the glibc module, but that will also cause some nasty surprises to anyone using that header in C, so it is unlikely.Fixes: rdar://128079849