Clang – Build Information – Swift Package Index

Build Information

Failed to build Clang, reference master (c540be), with Swift 6.4 for Wasm on 16 Sep 2026 04:58:21 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/llvm-swift/clangswift.git
Reference: master
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/llvm-swift/clangswift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c540bea Merge pull request #42 from segiddins/segiddins/support-CXType_ObjCTypeParam
Cloned https://github.com/llvm-swift/clangswift.git
Revision (git rev-parse @):
c540bea54b3d92ebd2df4ad96141d7dbce5307b6
SUCCESS checkout https://github.com/llvm-swift/clangswift.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/llvm-swift/clangswift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
warning: 'spi-builder-workspace': couldn't find pc file for cclang
Building for debugging...
[Planning deferred tasks]
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

<module-includes>:1:10: [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m1 |[0;0m #include "shim.h"
  [0;36m|[0;0m          `- [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m2 |[0;0m
/host/spi-builder-workspace/Sources/cclang/shim.h:1:10: [1;31merror: [1;39m'clang-c/Platform.h' file not found[0;0m
 [0;36m1 |[0;0m #include <clang-c/Platform.h>
   [0;36m|[0;0m          `- [1;31merror: [1;39m'clang-c/Platform.h' file not found[0;0m
 [0;36m2 |[0;0m
 [0;36m3 |[0;0m #ifdef I // For some reason this is defined
/host/spi-builder-workspace/Sources/Clang/Availability.swift:2:8: [1;31merror: [1;39mcould not build C module 'cclang'[0;0m
  [0;36m1 |[0;0m #if SWIFT_PACKAGE
  [0;36m2 |[0;0m import cclang
    [0;36m|[0;0m        `- [1;31merror: [1;39mcould not build C module 'cclang'[0;0m
  [0;36m3 |[0;0m #endif
  [0;36m4 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Clang/Availability.swift /host/spi-builder-workspace/Sources/Clang/CType.swift /host/spi-builder-workspace/Sources/Clang/CTypes.swift /host/spi-builder-workspace/Sources/Clang/ClangError.swift /host/spi-builder-workspace/Sources/Clang/Comment.swift /host/spi-builder-workspace/Sources/Clang/Cursor.swift /host/spi-builder-workspace/Sources/Clang/Cursors.swift /host/spi-builder-workspace/Sources/Clang/Diagnostic.swift /host/spi-builder-workspace/Sources/Clang/EvalResult.swift /host/spi-builder-workspace/Sources/Clang/File.swift /host/spi-builder-workspace/Sources/Clang/FunctionDecl.swift /host/spi-builder-workspace/Sources/Clang/Index.swift /host/spi-builder-workspace/Sources/Clang/Language.swift /host/spi-builder-workspace/Sources/Clang/NameRefOptions.swift /host/spi-builder-workspace/Sources/Clang/Token.swift /host/spi-builder-workspace/Sources/Clang/TranslationUnit.swift /host/spi-builder-workspace/Sources/Clang/Utilities.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -fmodule-map-file\=/host/spi-builder-workspace/Sources/cclang/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Clang -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Clang_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Modules/Clang.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Modules/Clang.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Clang-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Clang-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Clang-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Clang.build/Debug-webassembly-wasm32/Clang-t.build/Objects-normal/wasm32/Modules/Clang.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm