[cxx-interop] Add std::expected into the libstdc++ modulemap on Linux#88581
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egorzhdan wants to merge 2 commits intoswiftlang:mainfrom
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[cxx-interop] Add std::expected into the libstdc++ modulemap on Linux#88581egorzhdan wants to merge 2 commits intoswiftlang:mainfrom
std::expected into the libstdc++ modulemap on Linux#88581egorzhdan wants to merge 2 commits intoswiftlang:mainfrom
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rdar://175155283
egorzhdan
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Xazax-hun,
j-hui,
patrykstefanski and
susmonteiro
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@swift-ci please smoke test |
Xazax-hun
approved these changes
Apr 21, 2026
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@swift-ci please test Windows |
patrykstefanski
approved these changes
Apr 21, 2026
j-hui
approved these changes
Apr 21, 2026
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Projects on Linux had trouble importing C++ libraries that use the
<expected>C++ header. This was due to a modularization error: the libstdc++ modulemap did not list<expected>as one of its headers.Changes the libstdc++ modulemap that the Swift compiler injects into system include paths using LLVM VFS.
rdar://175155283
Low, this only affects Linux and is covered by tests.
Enabled existing
std::expectedtest on Linux.