Swift Package Index

Build Information

Successful build of LibPNG, reference 1.6.58 (6b62d0), with Swift 6.3 for macOS (SPM) on 8 May 2026 15:59:50 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/EvgenijLutz/LibPNG.git
Reference: 1.6.58
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/EvgenijLutz/LibPNG
 * tag               1.6.58     -> FETCH_HEAD
HEAD is now at 6b62d0b Update to PNG 1.6.58
Cloned https://github.com/EvgenijLutz/LibPNG.git
Revision (git rev-parse @):
6b62d0b10b52a243d92a1bcd847b762e04fe5191
SUCCESS checkout https://github.com/EvgenijLutz/LibPNG.git at 1.6.58
========================================
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": "libpng",
      "name": "LibPNG",
      "url": "https://github.com/EvgenijLutz/LibPNG.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/LibPNG",
      "traits": [
        "default"
      ],
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/EvgenijLutz/LibPNG.git
[1/416] Fetching libpng
Fetched https://github.com/EvgenijLutz/LibPNG.git from cache (1.52s)
Creating working copy for https://github.com/EvgenijLutz/LibPNG.git
Working copy of https://github.com/EvgenijLutz/LibPNG.git resolved at 1.6.58 (6b62d0b)
warning: '.resolve-product-dependencies': dependency 'libpng' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/EvgenijLutz/LibPNG.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/6] Copying libpng16.a
[1/6] Write sources
[2/6] Write swift-version--6988338F2F200930.txt
[3/6] Compiling LibPNGC Common.cpp
[4/6] Compiling LibPNGC PNGImage.cpp
[4/6] Compiling LibPNGC LibPNGC.cpp
[7/8] Compiling LibPNG LibPNG.swift
[8/8] Emitting module LibPNG
Build complete! (11.66s)
Build complete.
{
  "c_language_standard" : "c17",
  "cxx_language_standard" : "c++20",
  "dependencies" : [
  ],
  "manifest_display_name" : "LibPNG",
  "name" : "LibPNG",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    },
    {
      "name" : "Android",
      "version" : "5.0"
    }
  ],
  "products" : [
    {
      "name" : "LibPNG",
      "targets" : [
        "LibPNG"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "LibPNGC",
      "targets" : [
        "LibPNGC"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "png",
      "targets" : [
        "png"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "png",
      "module_type" : "BinaryTarget",
      "name" : "png",
      "path" : "Binaries/png.xcframework",
      "product_memberships" : [
        "LibPNG",
        "LibPNGC",
        "png"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "LibPNGC",
      "module_type" : "ClangTarget",
      "name" : "LibPNGC",
      "path" : "Sources/LibPNGC",
      "product_memberships" : [
        "LibPNG",
        "LibPNGC"
      ],
      "sources" : [
        "Common.cpp",
        "LibPNGC.cpp",
        "PNGImage.cpp"
      ],
      "target_dependencies" : [
        "png"
      ],
      "type" : "library"
    },
    {
      "c99name" : "LibPNG",
      "module_type" : "SwiftTarget",
      "name" : "LibPNG",
      "path" : "Sources/LibPNG",
      "product_memberships" : [
        "LibPNG"
      ],
      "sources" : [
        "LibPNG.swift"
      ],
      "target_dependencies" : [
        "LibPNGC"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.3"
}
Done.