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Build Information

Failed to build Markdown, reference 1.0.0 (ad895d), with Swift 6.3 for macOS (Xcode) using Xcode 26.4 on 10 Apr 2026 17:48:44 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Markdown -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/twostraws/markdown.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/twostraws/markdown
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at ad895d1 Updated README.
Cloned https://github.com/twostraws/markdown.git
Revision (git rev-parse @):
ad895d1cd77d4f6b6775497cbff7b0c5995f7485
SUCCESS checkout https://github.com/twostraws/markdown.git at 1.0.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.3
Building package at path:  $PWD
https://github.com/twostraws/markdown.git
Command line invocation:
    /Applications/Xcode-26.4.0.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 libmarkdown using your system-packager:
    brew install discount
Resolve Package Graph
you may be able to install libmarkdown using your system-packager:
    brew install discount
Resolved source packages:
  Markdown: /Users/admin/builder/spi-builder-workspace
resolved source packages: Markdown
2026-04-10 13:48:25.568 xcodebuild[525:3030] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Markdown",
  "name" : "Markdown",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Markdown",
      "targets" : [
        "Markdown"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "discount",
      "module_type" : "SystemLibraryTarget",
      "name" : "discount",
      "path" : "Sources/discount",
      "product_memberships" : [
        "Markdown"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    },
    {
      "c99name" : "MarkdownTests",
      "module_type" : "SwiftTarget",
      "name" : "MarkdownTests",
      "path" : "Tests/MarkdownTests",
      "sources" : [
        "MarkdownTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Markdown"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Markdown",
      "module_type" : "SwiftTarget",
      "name" : "Markdown",
      "path" : "Sources/Markdown",
      "product_memberships" : [
        "Markdown"
      ],
      "sources" : [
        "Markdown.swift",
        "ParseOptions.swift"
      ],
      "target_dependencies" : [
        "discount"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Markdown"
    ]
  }
}
2026-04-10 13:48:33.489 xcodebuild[632:3774] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Markdown -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-26.4.0.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 Markdown -destination platform=macOS,arch=arm64
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libmarkdown using your system-packager:
    brew install discount
Resolved source packages:
  Markdown: /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 'Markdown' in project 'Markdown'
        ➜ Explicit dependency on target 'Markdown' in project 'Markdown'
    Target 'Markdown' in project 'Markdown'
        ➜ Explicit dependency on target 'discount' in project 'Markdown'
    Target 'discount' in project 'Markdown' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: ba35102632408097966dd2ebe19a2ac8
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ba35102632408097966dd2ebe19a2ac8.xcbuilddata
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache
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
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
    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
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.DependencyMetadataFileList (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.DependencyStaticMetadataFileList (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.modulemap (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-OutputFileMap.json (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftConstValuesFileList (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftFileList (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown_const_extract_protocols.json (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.LinkFileList (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Markdown.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Markdown.modulemap (in target 'Markdown' from project 'Markdown')
    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/Markdown.build/Debug/Markdown.build/Markdown.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver Markdown normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name Markdown -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/discount/module.modulemap -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -target arm64-apple-macos10.13 -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 -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-OutputFileMap.json -use-frontend-parseable-output -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/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.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/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-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 'Discount' imported from Discount-7c3f5595.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/discount/discount.h:1:10: fatal error: 'mkdio.h' file not found
Discount-7c3f5595.input:1:1: fatal error: could not build module 'Discount'
 (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: error: Unable to resolve module dependency: 'Discount'
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: note: A dependency of main module 'Markdown'
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/ParseOptions.swift:2:8: note: Also imported here
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
2026-04-10 13:48:34.985 xcodebuild[646:3843] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
error: clang dependency scanning failure: While building module 'Discount' imported from Discount-7c3f5595.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/discount/discount.h:1:10: fatal error: 'mkdio.h' file not found
Discount-7c3f5595.input:1:1: fatal error: could not build module 'Discount'
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: error: unable to resolve module dependency: 'Discount'
import Discount
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: note: a dependency of main module 'Markdown'
import Discount
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/ParseOptions.swift:2:8: note: also imported here
import Discount
       ^
** BUILD FAILED **
The following build commands failed:
	SwiftDriver Markdown normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Markdown' from project 'Markdown')
	Building workspace spi-builder-workspace with scheme Markdown
(2 failures)
Command line invocation:
    /Applications/Xcode-26.4.0.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 libmarkdown using your system-packager:
    brew install discount
Resolved source packages:
  Markdown: /Users/admin/builder/spi-builder-workspace
resolved source packages: Markdown
2026-04-10 13:48:41.407 xcodebuild[672:4050] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Markdown",
  "name" : "Markdown",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Markdown",
      "targets" : [
        "Markdown"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "discount",
      "module_type" : "SystemLibraryTarget",
      "name" : "discount",
      "path" : "Sources/discount",
      "product_memberships" : [
        "Markdown"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    },
    {
      "c99name" : "MarkdownTests",
      "module_type" : "SwiftTarget",
      "name" : "MarkdownTests",
      "path" : "Tests/MarkdownTests",
      "sources" : [
        "MarkdownTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Markdown"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Markdown",
      "module_type" : "SwiftTarget",
      "name" : "Markdown",
      "path" : "Sources/Markdown",
      "product_memberships" : [
        "Markdown"
      ],
      "sources" : [
        "Markdown.swift",
        "ParseOptions.swift"
      ],
      "target_dependencies" : [
        "discount"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Markdown"
    ]
  }
}
2026-04-10 13:48:42.696 xcodebuild[689:4153] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Markdown -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-26.4.0.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 Markdown -destination platform=macOS,arch=arm64
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install libmarkdown using your system-packager:
    brew install discount
Resolved source packages:
  Markdown: /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 'Markdown' in project 'Markdown'
        ➜ Explicit dependency on target 'Markdown' in project 'Markdown'
    Target 'Markdown' in project 'Markdown'
        ➜ Explicit dependency on target 'discount' in project 'Markdown'
    Target 'discount' in project 'Markdown' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache
SwiftDriver Markdown normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Markdown' from project 'Markdown')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name Markdown -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/discount/module.modulemap -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -target arm64-apple-macos10.13 -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 -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.4-25E236-688ef53f1462e2c8f657fdc38a81448fdfce61f96a3a6fc38dcbb3b93e3bb2ee.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-OutputFileMap.json -use-frontend-parseable-output -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/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Markdown.build/Debug/Markdown.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/Markdown.build/Debug/Markdown.build/Objects-normal/arm64/Markdown-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 'Discount' imported from Discount-c2b2cbbb.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/discount/discount.h:1:10: fatal error: 'mkdio.h' file not found
Discount-c2b2cbbb.input:1:1: fatal error: could not build module 'Discount'
 (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: error: Unable to resolve module dependency: 'Discount'
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: note: A dependency of main module 'Markdown'
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/ParseOptions.swift:2:8: note: Also imported here
import Discount
       ^ (in target 'Markdown' from project 'Markdown')
2026-04-10 13:48:43.589 xcodebuild[699:4202] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:2dbeb9decdae3f0562b7aab5a3c571e3dd08286d, name:My Mac }
error: clang dependency scanning failure: While building module 'Discount' imported from Discount-c2b2cbbb.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/discount/discount.h:1:10: fatal error: 'mkdio.h' file not found
Discount-c2b2cbbb.input:1:1: fatal error: could not build module 'Discount'
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: error: unable to resolve module dependency: 'Discount'
import Discount
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/Markdown.swift:1:8: note: a dependency of main module 'Markdown'
import Discount
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Markdown/ParseOptions.swift:2:8: note: also imported here
import Discount
       ^
** BUILD FAILED **
The following build commands failed:
	SwiftDriver Markdown normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Markdown' from project 'Markdown')
	Building workspace spi-builder-workspace with scheme Markdown
(2 failures)
BUILD FAILURE 6.3 macosXcodebuild