Swift Package Index

Build Information

Failed to build LibPNG, reference master (f5b1a8), with Swift 6.2 (beta) for macOS (SPM) on 18 Jun 2025 13:52:35 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 4.64.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/KrakenCL/LibPNG.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/KrakenCL/LibPNG
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at f5b1a8c Delete .swiftpm/xcode/package.xcworkspace directory
Cloned https://github.com/KrakenCL/LibPNG.git
Revision (git rev-parse @):
f5b1a8ca56ffa6a8229eada39c4d543fb60f42d4
SUCCESS checkout https://github.com/KrakenCL/LibPNG.git at master
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/KrakenCL/LibPNG.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-1EA4D86E10B52AF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module LibPNG
/Users/admin/builder/spi-builder-workspace/Library/CPNG/module.modulemap:2:10: error: header '/usr/local/include/png.h' not found
1 | module CPNG [system] {
2 |   header "/usr/local/include/png.h"
  |          `- error: header '/usr/local/include/png.h' not found
3 |   link "png"
4 |   export *
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:19:8: error: could not build Objective-C module 'CPNG'
 17 |
 18 | import Foundation
 19 | import CPNG
    |        `- error: could not build Objective-C module 'CPNG'
 20 |
 21 | public typealias Pixel = UInt8
[4/4] Compiling LibPNG LibPNG.swift
/Users/admin/builder/spi-builder-workspace/Library/CPNG/module.modulemap:2:10: error: header '/usr/local/include/png.h' not found
1 | module CPNG [system] {
2 |   header "/usr/local/include/png.h"
  |          `- error: header '/usr/local/include/png.h' not found
3 |   link "png"
4 |   export *
/Users/admin/builder/spi-builder-workspace/Sources/LibPNG/LibPNG.swift:19:8: error: could not build Objective-C module 'CPNG'
 17 |
 18 | import Foundation
 19 | import CPNG
    |        `- error: could not build Objective-C module 'CPNG'
 20 |
 21 | public typealias Pixel = UInt8
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install libpng using your system-packager:
    brew install libpng
warning: you may be able to install libpng using your system-packager:
    brew install libpng
BUILD FAILURE 6.2 macosSpm