Swift Package Index

Build Information

Failed to build SwiftLibModbus, reference main (5da5e5), with Swift 6.3 for Wasm on 18 Jul 2026 06:39:46 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 333316120c8b89ed7d21f1b34865290794301d91
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jollyjinx/SwiftLibModbus.git
Reference: main
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/jollyjinx/SwiftLibModbus
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 5da5e53 Add per-operation Modbus device addressing
Cloned https://github.com/jollyjinx/SwiftLibModbus.git
Revision (git rev-parse @):
5da5e53d39c7f9eeda066ac08964613237572efc
SUCCESS checkout https://github.com/jollyjinx/SwiftLibModbus.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/jollyjinx/SwiftLibModbus.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from saguaro1/spi-images
Digest: sha256:501b6bfc4ca8a27c305c68f9d5c778f996de82635741ab45476a03ffa6fa26d2
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest
Building for debugging...
[0/7] Write sources
[1/7] Compiling CModbus strlcpy.c
[2/7] Compiling CModbus modbus-data.c
In file included from /host/spi-builder-workspace/Sources/CModbus/modbus-rtu.c:38:
/host/spi-builder-workspace/Sources/CModbus/modbus-rtu-private.h:31:10: fatal error: 'termios.h' file not found
   31 | #include <termios.h>
      |          ^~~~~~~~~~~
1 error generated.
[3/7] Compiling CModbus modbus-rtu.c
In file included from /host/spi-builder-workspace/Sources/CModbus/modbus-tcp.c:28:
/root/.swiftpm/swift-sdks/swift-6.3.2-RELEASE_wasm.artifactbundle/swift-6.3.2-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk/include/wasm32-wasip1/signal.h:2:2: error: "wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"
    2 | #error "wasm lacks signal support; to enable minimal signal emulation, \
      |  ^
/host/spi-builder-workspace/Sources/CModbus/modbus-tcp.c:59:11: fatal error: 'netdb.h' file not found
   59 | # include <netdb.h>
      |           ^~~~~~~~~
[3/7] Compiling CModbus modbus-tcp.c
[3/7] Compiling CModbus modbus.c
[3/7] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm