swift-libclang – Build Information

Build Information

Failed to build swift-libclang, reference v0.1.0 (58751f), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 23:43:15 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Lancelotbronner/swift-libclang.git
Reference: v0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Lancelotbronner/swift-libclang
 * tag               v0.1.0     -> FETCH_HEAD
HEAD is now at 58751f5 Include latest changes
Cloned https://github.com/Lancelotbronner/swift-libclang.git
Revision (git rev-parse @):
58751f56f35282c2c35d4683d742e1f8f3870812
SUCCESS checkout https://github.com/Lancelotbronner/swift-libclang.git at v0.1.0
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Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Lancelotbronner/swift-libclang.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 155]
[Planning deferred tasks]
[37 / 70]
[38 / 71] InternalCollectionsUtilities
[51 / 84] InternalCollectionsUtilities
[58 / 85] SpanPreview
[72 / 90] InternalCollectionsUtilities
[84 / 101] BasicContainers
[91 / 102] BasicContainers
Fetching https://github.com/apple/swift-collections
[1/27693] Fetching swift-collections
Fetched https://github.com/apple/swift-collections (4.30s)
Computing version for https://github.com/apple/swift-collections
Computed https://github.com/apple/swift-collections at 1.7.0 (5.00s)
Creating working copy for https://github.com/apple/swift-collections
Working copy of https://github.com/apple/swift-collections resolved at 1.7.0
warning: 'spi-builder-workspace': failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: 'spi-builder-workspace': you may be able to install cclang using your system-packager:
    brew install llvm
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:2: fatal error: could not build module 'CoreClang'
error: clang dependency scanning failure:
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:3: fatal error: could not build module 'CoreClang'
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:2: fatal error: could not build module 'CoreClang'
error: /Users/admin/builder/spi-builder-workspace/Sources/Clang/CompilationDb.swift:8:8 unable to resolve module dependency: 'CoreClang'
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:2: fatal error: could not build module 'CoreClang'
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:3: fatal error: could not build module 'CoreClang'
error: clang dependency scanning failure: While building module 'CoreClang' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/interop.h:3:10: fatal error: 'clang-c/BuildSystem.h' file not found
module-include.input:1:2: fatal error: could not build module 'CoreClang'
error: SwiftDriver Clang normal arm64 com.apple.xcode.tools.swift.compiler failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name Clang -Onone @/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/CoreClang/module.modulemap -DXcode -enable-upcoming-feature MemberImportVisibility -enable-experimental-feature Lifetimes -enable-experimental-feature InoutLifetimeDependence -enable-experimental-feature SuppressedAssociatedTypes -enable-experimental-feature AddressableParameters -enable-experimental-feature AddressableTypes -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos26.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang-OutputFileMap.json -save-temps -color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-libclang.build/Debug/Clang-t.build/Objects-normal/arm64/Clang-Swift.h -working-directory /Users/admin/builder -experimental-emit-module-separately -disable-cmo
error: Build failed
BUILD FAILURE 6.4 macosSpm