MadDrivers – Build Information – Swift Package Index

Build Information

Failed to build MadDrivers, reference main (131b70), with Swift 6.4 for macOS (SPM) on 19 Sep 2026 18:34:58 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/madmachineio/MadDrivers.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/madmachineio/MadDrivers
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 131b701 Add LCD driver for NV3007 (#85)
Cloned https://github.com/madmachineio/MadDrivers.git
Revision (git rev-parse @):
131b7011aae6cc76bb2ea1ca5fcd15bbba91135e
SUCCESS checkout https://github.com/madmachineio/MadDrivers.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/madmachineio/MadDrivers.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 2591]
[Planning 2335 / 2591]
[Planning deferred tasks]
[Constructing 3176 / 5106]
[123 / 723] MadDrivers-product
[324 / 723]
[326 / 724] CSwiftIO
[328 / 724] SwiftIO
[336 / 746]
[338 / 746]
[350 / 746] SwiftIO
[351 / 746] SwiftIO
[368 / 756] SwiftIO
[378 / 776] ST7789
Fetching https://github.com/madmachineio/SwiftIO.git
[1/5098] Fetching swiftio
Fetched https://github.com/madmachineio/SwiftIO.git (2.05s)
Creating working copy for https://github.com/madmachineio/SwiftIO.git
Working copy of https://github.com/madmachineio/SwiftIO.git resolved at main (d3be5f3)
error: SwiftCompile normal arm64 failed with a nonzero exit code. Command line:     cd /Users/admin/builder

/Users/admin/builder/spi-builder-workspace/Sources/TCS34725/TCS34725.swift:351:2: [1;31merror: [1;39m'@_extern' requires '-enable-experimental-feature Extern'[0;0m
[0;36m349 |[0;0m }
[0;36m350 |[0;0m
[0;36m351 |[0;0m @_extern(c, "powf")
    [0;36m|[0;0m  `- [1;31merror: [1;39m'@_extern' requires '-enable-experimental-feature Extern'[0;0m
[0;36m352 |[0;0m func powf(_: Float, _ : Float) -> Float
[0;36m353 |[0;0m
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/TCS34725/TCS34725.swift -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -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 -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -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 -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/CSwiftIO.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/SwiftIO/Sources/CSwiftIO/include -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/MadDrivers.build/Debug/TCS34725-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name TCS34725 -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MadDrivers.build/Debug/TCS34725-t.build/Objects-normal/arm64/TCS34725.abi.json
error: Build failed
BUILD FAILURE 6.4 macosSpm