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Remove old feature enablement default #856

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Remove old feature enablement default #856

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b39e7ce
Make many clang explicit modules tests cross-platform
owenv Oct 10, 2025
d764431
Remove old lang explicit modules user default
owenv Oct 10, 2025
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3 changes: 0 additions & 3 deletions Sources/SWBCore/SWBFeatureFlag.swift
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Expand Up @@ -141,9 +141,6 @@ public enum SWBFeatureFlag {
/// Remove this feature flag after landing rdar://104894978 (Write "perform-ownership-analysis" = "yes" to build manifest by default)
public static let performOwnershipAnalysis = SWBFeatureFlagProperty("PerformOwnershipAnalysis", defaultValue: false)

/// Enable clang explicit modules by default.
public static let enableClangExplicitModulesByDefault = SWBFeatureFlagProperty("EnableClangExplicitModulesByDefault", defaultValue: false)

/// Enable Swift explicit modules by default.
public static let enableSwiftExplicitModulesByDefault = SWBFeatureFlagProperty("EnableSwiftExplicitModulesByDefault", defaultValue: false)

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4 changes: 0 additions & 4 deletions Sources/SWBCore/Settings/Settings.swift
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Expand Up @@ -573,10 +573,6 @@ final class WorkspaceSettings: Sendable {
table.push(BuiltinMacros.EXPERIMENTAL_ALLOW_INSTALL_HEADERS_FILTERING, literal: true)
}

if SWBFeatureFlag.enableClangExplicitModulesByDefault.value {
table.push(BuiltinMacros.CLANG_ENABLE_EXPLICIT_MODULES, literal: true)
}

if SWBFeatureFlag.enableSwiftExplicitModulesByDefault.value {
table.push(BuiltinMacros.SWIFT_ENABLE_EXPLICIT_MODULES, literal: .enabled)
}
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3 changes: 2 additions & 1 deletion Sources/SWBCore/SpecImplementations/Tools/CCompiler.swift
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Expand Up @@ -972,7 +972,8 @@ public class ClangCompilerSpec : CompilerSpec, SpecIdentifierType, GCCCompatible
// Check that this is the same toolchain and version as the compiler. Mismatched clang/libclang is not supported with explicit modules.
let compilerAndLibraryAreInSameToolchain = toolchainPath.isAncestor(of: compiler)
let libclangVersion = cbc.producer.lookupLibclang(path: path).version
let compilerAndLibraryVersionsMatch = libclangVersion != nil && libclangVersion == clangInfo?.clangVersion
// On macOS we enforce a matching clang and libclang version, the versioning schemes on other host platforms currently make this difficult.
let compilerAndLibraryVersionsMatch = libclangVersion != nil && libclangVersion == clangInfo?.clangVersion || cbc.producer.hostOperatingSystem != .macOS
if compilerAndLibraryAreInSameToolchain && (compilerAndLibraryVersionsMatch || cbc.scope.evaluate(BuiltinMacros.CLANG_EXPLICIT_MODULES_IGNORE_LIBCLANG_VERSION_MISMATCH)) {
return path
}
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