Swift Package Index

Build Information

Failed to build LibPNG, reference master (c059e4), with Swift 6.4 for watchOS using Xcode 27.0 on 20 Sep 2026 22:14:05 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibPNG -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/LuizZak/swift-libpng.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/LuizZak/swift-libpng
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c059e4a Adding test for PNGFile.fromArgb
Cloned https://github.com/LuizZak/swift-libpng.git
Revision (git rev-parse @):
c059e4a34d0a84a2a1cc7eac8acdb8fa3ab8142f
SUCCESS checkout https://github.com/LuizZak/swift-libpng.git at master
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/LuizZak/swift-libpng.git
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libpng using your system-packager:
    brew install libpng
Resolve Package Graph
you may be able to install libpng using your system-packager:
    brew install libpng
Resolved source packages:
  LibPNG: /Users/admin/builder/spi-builder-workspace
resolved source packages: LibPNG
2026-09-20 18:13:16.986 xcodebuild[525:3033] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LibPNG",
  "name" : "LibPNG",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "LibPNG",
      "targets" : [
        "LibPNG"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "CLibPNG",
      "targets" : [
        "CLibPNG"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LibPNGTests",
      "module_type" : "SwiftTarget",
      "name" : "LibPNGTests",
      "path" : "Tests/LibPNGTests",
      "sources" : [
        "LibPNGTests.swift"
      ],
      "target_dependencies" : [
        "LibPNG"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LibPNG",
      "module_type" : "SwiftTarget",
      "name" : "LibPNG",
      "path" : "Sources/LibPNG",
      "product_memberships" : [
        "LibPNG"
      ],
      "sources" : [
        "LibPNG+FromData.swift",
        "LibPNG.swift"
      ],
      "target_dependencies" : [
        "CLibPNG"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CLibPNG",
      "module_type" : "SystemLibraryTarget",
      "name" : "CLibPNG",
      "path" : "Sources/CLibPNG",
      "product_memberships" : [
        "LibPNG",
        "CLibPNG"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    }
  ],
  "tools_version" : "5.4"
}
{
  "workspace" : {
    "name" : "LibPNG",
    "schemes" : [
      "LibPNG"
    ]
  }
}
2026-09-20 18:13:58.384 xcodebuild[652:4135] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibPNG -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme LibPNG -destination generic/platform=watchOS
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libpng using your system-packager:
    brew install libpng
Resolved source packages:
  LibPNG: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'LibPNG-product' in project 'LibPNG'
        ➜ Explicit dependency on target 'LibPNG' in project 'LibPNG'
    Target 'LibPNG' in project 'LibPNG'
        ➜ Explicit dependency on target 'CLibPNG' in project 'LibPNG'
    Target 'CLibPNG' in project 'LibPNG' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 71e9564be4a88bcf2b989244024c2cd5
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/71e9564be4a88bcf2b989244024c2cd5.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-OutputFileMap.json (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG_const_extract_protocols.json (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG_const_extract_protocols.json (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.LinkFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.LinkFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftConstValuesFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftConstValuesFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-OutputFileMap.json (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.modulemap (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.DependencyStaticMetadataFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.DependencyMetadataFileList (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos/LibPNG.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.modulemap (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/LibPNG.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos
SwiftDriver LibPNG normal arm64 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name LibPNG -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/module.modulemap -DXcode -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/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -target arm64-apple-watchos9.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: error: Unable to resolve module dependency: 'CLibPNG' (in target 'LibPNG' from project 'LibPNG')
    note: A dependency of main module 'LibPNG'
    /Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: note: A dependency of main module 'LibPNG'
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
SwiftDriver LibPNG normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name LibPNG -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/module.modulemap -DXcode -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/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -target arm64_32-apple-watchos9.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: error: Unable to resolve module dependency: 'CLibPNG' (in target 'LibPNG' from project 'LibPNG')
    note: A dependency of main module 'LibPNG'
    /Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: note: A dependency of main module 'LibPNG'
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
2026-09-20 18:13:59.991 xcodebuild[660:4183] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftDriver LibPNG normal arm64 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
	SwiftDriver LibPNG normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
	Building workspace LibPNG with scheme LibPNG
(3 failures)
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libpng using your system-packager:
    brew install libpng
Resolved source packages:
  LibPNG: /Users/admin/builder/spi-builder-workspace
resolved source packages: LibPNG
2026-09-20 18:14:03.243 xcodebuild[682:4381] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LibPNG",
  "name" : "LibPNG",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "LibPNG",
      "targets" : [
        "LibPNG"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "CLibPNG",
      "targets" : [
        "CLibPNG"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LibPNGTests",
      "module_type" : "SwiftTarget",
      "name" : "LibPNGTests",
      "path" : "Tests/LibPNGTests",
      "sources" : [
        "LibPNGTests.swift"
      ],
      "target_dependencies" : [
        "LibPNG"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LibPNG",
      "module_type" : "SwiftTarget",
      "name" : "LibPNG",
      "path" : "Sources/LibPNG",
      "product_memberships" : [
        "LibPNG"
      ],
      "sources" : [
        "LibPNG+FromData.swift",
        "LibPNG.swift"
      ],
      "target_dependencies" : [
        "CLibPNG"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CLibPNG",
      "module_type" : "SystemLibraryTarget",
      "name" : "CLibPNG",
      "path" : "Sources/CLibPNG",
      "product_memberships" : [
        "LibPNG",
        "CLibPNG"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    }
  ],
  "tools_version" : "5.4"
}
{
  "workspace" : {
    "name" : "LibPNG",
    "schemes" : [
      "LibPNG"
    ]
  }
}
2026-09-20 18:14:04.423 xcodebuild[697:4447] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibPNG -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme LibPNG -destination generic/platform=watchOS
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libpng using your system-packager:
    brew install libpng
Resolved source packages:
  LibPNG: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'LibPNG-product' in project 'LibPNG'
        ➜ Explicit dependency on target 'LibPNG' in project 'LibPNG'
    Target 'LibPNG' in project 'LibPNG'
        ➜ Explicit dependency on target 'CLibPNG' in project 'LibPNG'
    Target 'CLibPNG' in project 'LibPNG' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache
SwiftDriver LibPNG normal arm64 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name LibPNG -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/module.modulemap -DXcode -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/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -target arm64-apple-watchos9.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64/LibPNG-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: error: Unable to resolve module dependency: 'CLibPNG' (in target 'LibPNG' from project 'LibPNG')
    note: A dependency of main module 'LibPNG'
    /Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:3: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: note: A dependency of main module 'LibPNG'
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
SwiftDriver LibPNG normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name LibPNG -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/module.modulemap -DXcode -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/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -target arm64_32-apple-watchos9.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos27.0-24R360-e829b21a6f8c9b70876ba0858053c04477534ef55a1706bf4c1112bbb242f0a2.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/LibPNG.build/Debug-watchos/LibPNG-t.build/Objects-normal/arm64_32/LibPNG-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:2: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: error: Unable to resolve module dependency: 'CLibPNG' (in target 'LibPNG' from project 'LibPNG')
    note: A dependency of main module 'LibPNG'
    /Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
error: Clang dependency scanning failure: While building module 'CLibPNG' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/CLibPNG/libpng.h:1:10: fatal error: 'png.h' file not found
module-include.input:1:2: fatal error: could not build module 'CLibPNG'
 (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG+FromData.swift:1:8: note: A dependency of main module 'LibPNG'
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:5:8: note: Also imported here
import CLibPNG
       ^ (in target 'LibPNG' from project 'LibPNG')
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
2026-09-20 18:14:05.357 xcodebuild[705:4481] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftDriver LibPNG normal arm64 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
	SwiftDriver LibPNG normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'LibPNG' from project 'LibPNG')
	Building workspace LibPNG with scheme LibPNG
(3 failures)
BUILD FAILURE 6.4 watchOS