Swift Package IndexBuild Information
Successful build of webp, reference master (10562e), with Swift 6.3 for macOS (SPM) on 16 Apr 2026 00:40:27 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/awxkee/webp.swift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/awxkee/webp.swift
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 10562e7 Merge pull request #4 from awxkee/prepare_for_xcode_16_3
Cloned https://github.com/awxkee/webp.swift.git
Revision (git rev-parse @):
10562e79e338de46e70f0f5c67b24cb90e02adb2
SUCCESS checkout https://github.com/awxkee/webp.swift.git at master
Fetching https://github.com/awxkee/libwebp-ios.git
[1/556] Fetching libwebp-ios
Fetched https://github.com/awxkee/libwebp-ios.git from cache (1.82s)
Computing version for https://github.com/awxkee/libwebp-ios.git
Computed https://github.com/awxkee/libwebp-ios.git at 1.1.0 (2.49s)
Creating working copy for https://github.com/awxkee/libwebp-ios.git
Working copy of https://github.com/awxkee/libwebp-ios.git resolved at 1.1.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "webp.swift",
"name": "webp",
"url": "https://github.com/awxkee/webp.swift.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/webp.swift",
"traits": [
"default"
],
"dependencies": [
{
"identity": "libwebp-ios",
"name": "libwebp-ios",
"url": "https://github.com/awxkee/libwebp-ios.git",
"version": "1.1.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/libwebp-ios",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
Fetching https://github.com/awxkee/webp.swift.git
[1/173] Fetching webp.swift
Fetched https://github.com/awxkee/webp.swift.git from cache (0.64s)
Fetching https://github.com/awxkee/libwebp-ios.git from cache
Fetched https://github.com/awxkee/libwebp-ios.git from cache (0.42s)
Computing version for https://github.com/awxkee/libwebp-ios.git
Computed https://github.com/awxkee/libwebp-ios.git at 1.1.1 (0.48s)
Creating working copy for https://github.com/awxkee/webp.swift.git
Working copy of https://github.com/awxkee/webp.swift.git resolved at master (10562e7)
Creating working copy for https://github.com/awxkee/libwebp-ios.git
Working copy of https://github.com/awxkee/libwebp-ios.git resolved at 1.1.1
warning: '.resolve-product-dependencies': dependency 'webp.swift' is not used by any target
Found 1 product dependencies
- libwebp-ios
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/awxkee/webp.swift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/9] Copying libwebpmux.a
[1/9] Write sources
[2/9] Copying libwebpdemux.a
[3/9] Copying libsharpyuv.a
[4/9] Copying libwebp.a
[5/9] Write swift-version--6988338F2F200930.txt
[6/9] Compiling webpbridge WebpIncrementalDecoder.mm
[7/9] Compiling webpbridge WebpIncrementalDecoderResult.mm
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:28:19: warning: ISO C++ requires field designators to be specified in declaration order; field 'width' will be initialized after field 'height' [-Wreorder-init-list]
28 | .height = static_cast<vImagePixelCount>(height),
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:27:18: note: previous initialization for field 'width' is here
27 | .width = static_cast<vImagePixelCount>(width),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:35:19: warning: ISO C++ requires field designators to be specified in declaration order; field 'width' will be initialized after field 'height' [-Wreorder-init-list]
35 | .height = static_cast<vImagePixelCount>(height),
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:34:18: note: previous initialization for field 'width' is here
34 | .width = static_cast<vImagePixelCount>(width),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:53:19: warning: ISO C++ requires field designators to be specified in declaration order; field 'width' will be initialized after field 'height' [-Wreorder-init-list]
53 | .height = static_cast<vImagePixelCount>(height),
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:52:18: note: previous initialization for field 'width' is here
52 | .width = static_cast<vImagePixelCount>(width),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:60:19: warning: ISO C++ requires field designators to be specified in declaration order; field 'width' will be initialized after field 'height' [-Wreorder-init-list]
60 | .height = static_cast<vImagePixelCount>(height),
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/webpbridge/WebpRGBAMultiplier.mm:59:18: note: previous initialization for field 'width' is here
59 | .width = static_cast<vImagePixelCount>(width),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 warnings generated.
[8/9] Compiling webpbridge WebpRGBAMultiplier.mm
[10/21] Compiling webp WebPDecoderConfig.swift
[11/21] Compiling webp WebPEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/webp/WebPEncoder.swift:123:30: warning: initialization of 'UnsafeMutableRawPointer' results in a dangling pointer [#TemporaryPointers]
121 | }
122 | picture.writer = writeWebP
123 | picture.custom_ptr = UnsafeMutableRawPointer(&buffer)
| | |- note: implicit argument conversion from 'WebPMemoryWriter' to 'UnsafeMutableRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'
| | `- note: use 'withUnsafeMutableBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope
| `- warning: initialization of 'UnsafeMutableRawPointer' results in a dangling pointer [#TemporaryPointers]
124 |
125 | if WebPEncode(&config, &picture) == 0 {
[#TemporaryPointers]: <https://docs.swift.org/compiler/documentation/diagnostics/temporary-pointers>
[12/21] Compiling webp CGImage+Util.swift
[13/21] Compiling webp InternalRawRepresentable.swift
[14/21] Emitting module webp
/Users/admin/builder/spi-builder-workspace/Sources/webp/WebPEncoderConfig.swift:4:1: warning: extension declares a conformance of imported type 'WebPImageHint' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'webpbridge' introduce this conformance in the future
2 | import webpbridge
3 |
4 | extension WebPImageHint: ExpressibleByIntegerLiteral {
| |- warning: extension declares a conformance of imported type 'WebPImageHint' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'webpbridge' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
5 | /// Create an instance initialized to `value`.
6 | public init(integerLiteral value: Int) {
[15/21] Compiling webp WebPEncoder+Platform.swift
[16/21] Compiling webp WebPDecoder.swift
[17/21] Compiling webp WebPAnimatedEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/webp/WebPAnimatedEncoder.swift:120:43: warning: initialization of 'UnsafeMutablePointer<UInt32>' results in a dangling pointer [#TemporaryPointers]
118 | var animParams = WebPMuxAnimParams()
119 | var features: UInt32 = 0
120 | var err = WebPMuxGetFeatures(mux, UnsafeMutablePointer(&features))
| | |- note: implicit argument conversion from 'UInt32' to 'UnsafeMutablePointer<UInt32>' produces a pointer valid only for the duration of the call to 'init(_:)'
| | `- note: use 'withUnsafeMutablePointer' in order to explicitly convert argument to pointer valid for a defined scope
| `- warning: initialization of 'UnsafeMutablePointer<UInt32>' results in a dangling pointer [#TemporaryPointers]
121 | if err != WEBP_MUX_OK {
122 | WebPMuxDelete(mux)
[#TemporaryPointers]: <https://docs.swift.org/compiler/documentation/diagnostics/temporary-pointers>
[18/21] Compiling webp WebPDecoder+Platform.swift
/Users/admin/builder/spi-builder-workspace/Sources/webp/WebPAnimatedEncoder.swift:120:43: warning: initialization of 'UnsafeMutablePointer<UInt32>' results in a dangling pointer [#TemporaryPointers]
118 | var animParams = WebPMuxAnimParams()
119 | var features: UInt32 = 0
120 | var err = WebPMuxGetFeatures(mux, UnsafeMutablePointer(&features))
| | |- note: implicit argument conversion from 'UInt32' to 'UnsafeMutablePointer<UInt32>' produces a pointer valid only for the duration of the call to 'init(_:)'
| | `- note: use 'withUnsafeMutablePointer' in order to explicitly convert argument to pointer valid for a defined scope
| `- warning: initialization of 'UnsafeMutablePointer<UInt32>' results in a dangling pointer [#TemporaryPointers]
121 | if err != WEBP_MUX_OK {
122 | WebPMuxDelete(mux)
[#TemporaryPointers]: <https://docs.swift.org/compiler/documentation/diagnostics/temporary-pointers>
[19/21] Compiling webp WebPEncoder+CGImage.swift
[20/21] Compiling webp WebPEncoderConfig.swift
/Users/admin/builder/spi-builder-workspace/Sources/webp/WebPEncoderConfig.swift:4:1: warning: extension declares a conformance of imported type 'WebPImageHint' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'webpbridge' introduce this conformance in the future
2 | import webpbridge
3 |
4 | extension WebPImageHint: ExpressibleByIntegerLiteral {
| |- warning: extension declares a conformance of imported type 'WebPImageHint' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'webpbridge' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
5 | /// Create an instance initialized to `value`.
6 | public init(integerLiteral value: Int) {
[21/21] Compiling webp WebPError.swift
[22/22] Compiling webp WebPImageInspector.swift
Build complete! (12.03s)
Build complete.
{
"dependencies" : [
{
"identity" : "libwebp-ios",
"requirement" : {
"range" : [
{
"lower_bound" : "1.1.0",
"upper_bound" : "1.2.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/awxkee/libwebp-ios.git"
}
],
"manifest_display_name" : "webp",
"name" : "webp",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.10"
},
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "maccatalyst",
"version" : "14.0"
}
],
"products" : [
{
"name" : "webp",
"targets" : [
"webp",
"webpbridge"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "webpbridge",
"module_type" : "ClangTarget",
"name" : "webpbridge",
"path" : "Sources/webpbridge",
"product_dependencies" : [
"libwebp-ios"
],
"product_memberships" : [
"webp"
],
"sources" : [
"WebpIncrementalDecoder.mm",
"WebpIncrementalDecoderResult.mm",
"WebpRGBAMultiplier.mm"
],
"type" : "library"
},
{
"c99name" : "webp",
"module_type" : "SwiftTarget",
"name" : "webp",
"path" : "Sources/webp",
"product_memberships" : [
"webp"
],
"sources" : [
"CGImage+Util.swift",
"InternalRawRepresentable.swift",
"WebPAnimatedEncoder.swift",
"WebPDecoder+Platform.swift",
"WebPDecoder.swift",
"WebPDecoderConfig.swift",
"WebPEncoder+CGImage.swift",
"WebPEncoder+Platform.swift",
"WebPEncoder.swift",
"WebPEncoderConfig.swift",
"WebPError.swift",
"WebPImageInspector.swift"
],
"target_dependencies" : [
"webpbridge"
],
"type" : "library"
}
],
"tools_version" : "5.6"
}
Done.