Swift Package IndexBuild Information
Failed to build Cairo, reference 1.3.1 (646b21), with Swift 6.3 for Linux on 15 Apr 2026 11:34:18 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pureswift/cairo.git
Reference: 1.3.1
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/pureswift/cairo
* tag 1.3.1 -> FETCH_HEAD
HEAD is now at 646b210 Updated dependencies
Cloned https://github.com/pureswift/cairo.git
Revision (git rev-parse @):
646b2104cf9d2b7b111bad1cd17a3fd27d77b5b4
SUCCESS checkout https://github.com/pureswift/cairo.git at 1.3.1
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Build
========================================
Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/pureswift/cairo.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Fetching https://github.com/PureSwift/FontConfig.git
[1/123] Fetching fontconfig
Fetched https://github.com/PureSwift/FontConfig.git from cache (0.27s)
Creating working copy for https://github.com/PureSwift/FontConfig.git
Working copy of https://github.com/PureSwift/FontConfig.git resolved at master (02b7b62)
warning: you may be able to install cairo using your system-packager:
apt-get install libcairo2-dev
warning: you may be able to install freetype using your system-packager:
apt-get install libfreetype6-dev
warning: you may be able to install fontconfig using your system-packager:
apt-get install libfontconfig-dev
warning: you may be able to install cairo using your system-packager:
apt-get install libcairo2-dev
warning: you may be able to install freetype using your system-packager:
apt-get install libfreetype6-dev
warning: you may be able to install fontconfig using your system-packager:
apt-get install libfontconfig-dev
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/9] Compiling FontConfig Pattern.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/9] Emitting module FontConfig
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
[6/9] Compiling FontConfig FontWidth.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
[7/9] Compiling FontConfig FontSlant.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
[8/9] Compiling FontConfig FontWeight.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
[9/9] Compiling FontConfig FontConfig.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
1 | #include <fontconfig/fontconfig.h>
| `- error: 'fontconfig/fontconfig.h' file not found
2 | #include <fontconfig/fcfreetype.h>
3 |
/host/spi-builder-workspace/.build/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build C module 'CFontConfig'
6 | //
7 |
8 | import CFontConfig
| `- error: could not build C module 'CFontConfig'
9 |
10 | public final class FontConfiguration {
BUILD FAILURE 6.3 linux