Build Information
Failed to build Janet, reference main (f8dbdd), with Swift 6.3 for Wasm on 28 Sep 2026 12:35:45 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/CleanCocoa/swift-janet.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/CleanCocoa/swift-janet
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at f8dbddc Release 0.1.1
Cloned https://github.com/CleanCocoa/swift-janet.git
Revision (git rev-parse @):
f8dbddca41b3b5bdb91e0acd2300d0f9a22a006f
SUCCESS checkout https://github.com/CleanCocoa/swift-janet.git at main
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/CleanCocoa/swift-janet.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$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: sha256:253aad7f5b11d25cf9eaef34120b94cd8a325782929c57fb304a7711494a3f9a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest
Building for debugging...
[0/3] Write sources
In file included from src/core/features.h:86:
In file included from /host/spi-builder-workspace/Sources/CJanet/include/janet.h:485:
/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/setjmp.h:13:2: error: Setjmp/longjmp support requires Exception handling support, which is [not yet standardized](https://github.com/WebAssembly/proposals?tab=readme-ov-file#phase-3---implementation-phase-cg--wg). To enable it, compile with `-mllvm -wasm-enable-sjlj` and use an engine that implements the Exception handling proposal.
13 | #error Setjmp/longjmp support requires Exception handling support, which is [not yet standardized](https://github.com/WebAssembly/proposals?tab=readme-ov-file#phase-3---implementation-phase-cg--wg). To enable it, compile with `-mllvm -wasm-enable-sjlj` and use an engine that implements the Exception handling proposal.
| ^
src/core/capi.c:65:5: error: call to undeclared function 'pthread_exit'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
65 | pthread_exit(NULL);
| ^
src/core/capi.c:65:5: note: did you mean 'pthread_join'?
/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/pthread.h:89:5: note: 'pthread_join' declared here
89 | int pthread_join(pthread_t, void **);
| ^
In file included from src/core/ev.c:45:
/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, \
| ^
src/core/ev.c:50:10: fatal error: 'netdb.h' file not found
50 | #include <netdb.h>
| ^~~~~~~~~
4 errors generated.
[1/3] Compiling CJanet janet.c
[1/3] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm