Swift Package IndexBuild Information
Failed to build SwiftMpg123, reference v1.1.0 (ff87b3), with Swift 6.3 for Wasm on 16 Apr 2026 14:11:17 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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Kosikowski/swift-mpg123.git
Reference: v1.1.0
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/Kosikowski/swift-mpg123
* tag v1.1.0 -> FETCH_HEAD
HEAD is now at ff87b3c feat: Add cross-platform CI/CD, embedded mpg123, and code quality checks (#4)
Cloned https://github.com/Kosikowski/swift-mpg123.git
Revision (git rev-parse @):
ff87b3c101daf337094944d2cde9cd091c75e1f3
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Kosikowski/swift-mpg123.git at v1.1.0
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/Kosikowski/swift-mpg123.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Building for debugging...
[0/52] Compiling genre.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat_str.c:14:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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, \
| ^
1 error generated.
[1/52] Compiling compat_str.c
[1/52] Compiling sysutil.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/filters.c:9:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/filters.h:22:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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, \
| ^
[1/52] Compiling filters.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/libmpg123/dct64.c:20:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/libmpg123/mpg123lib_intern.h:20:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/libmpg123/../compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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, \
| ^
In file included from /host/spi-builder-workspace/Sources/mpg123/src/libmpg123/dct64.c:20:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/libmpg123/mpg123lib_intern.h:307:
/host/spi-builder-workspace/Sources/mpg123/src/libmpg123/optimize.h:369:10: warning: 'defopt' macro redefined [-Wmacro-redefined]
369 | # define defopt nodec
| ^
/host/spi-builder-workspace/Sources/mpg123/include/config.h:47:9: note: previous definition is here
47 | #define defopt generic
| ^
[1/52] Compiling dct64.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/getlopt.c:11:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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, \
| ^
1 error generated.
[1/52] Compiling getlopt.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat_dl.c:17:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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, \
| ^
1 error generated.
[1/52] Compiling compat_dl.c
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:15:
In file included from /host/spi-builder-workspace/Sources/mpg123/src/compat/compat.h:33:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-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/mpg123/src/compat/compat.c:518:19: error: variable has incomplete type 'struct sigaction'
518 | struct sigaction new_sa;
| ^
/host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:518:9: note: forward declaration of 'struct sigaction'
518 | struct sigaction new_sa;
| ^
/host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:519:19: error: variable has incomplete type 'struct sigaction'
519 | struct sigaction old_sa;
| ^
/host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:518:9: note: forward declaration of 'struct sigaction'
518 | struct sigaction new_sa;
| ^
/host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:527:2: error: call to undeclared function 'sigemptyset'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
527 | sigemptyset(&new_sa.sa_mask);
| ^
/host/spi-builder-workspace/Sources/mpg123/src/compat/compat.c:529:5: error: call to undeclared function 'sigaction'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
529 | if(sigaction(signum, &new_sa, &old_sa) == -1)
| ^
5 errors generated.
[1/52] Compiling compat.c
[1/52] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm