From d95bdc8113dea42561c446a2134f19b24de81afc Mon Sep 17 00:00:00 2001
From: Jackson Bopp <boppjackson@gmail.com>
Date: Sat, 5 Sep 2026 03:26:39 -0400
Subject: [PATCH] ci: add a musl (Alpine) build job

Add a job that builds and tests mctp inside an Alpine Linux container,
to catch musl portability issues in CI before they surface during the
meta-openembedded bump process (#126).

Modeled on the existing no-libsystemd job: Alpine doesn't have
libsystemd, so the same meson dependency check that already gates the
dbus-based tests keeps this job to the plain test-mctp suite, matching
what it can actually exercise without dbus.

Verified locally in an alpine:latest container: configure, build, and
test all pass (7/7 subtests in test-mctp), with libsystemd and libcap
correctly reported as not found.

Signed-off-by: Jackson Bopp <boppjackson@gmail.com>
---
 .github/workflows/pr.yml | 29 +++++++++++++++++++++++++++++
 CHANGELOG.md             |  3 +++
 2 files changed, 32 insertions(+)

diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 873aafa8..9b4e4c50 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -71,3 +71,32 @@ jobs:
         with:
           name: no-libsystemd-meson-testlog
           path: build/meson-logs/testlog.txt
+
+  musl:
+    runs-on: ubuntu-latest
+    container: alpine:latest
+    steps:
+      - name: Install system build dependencies
+        run: >
+          apk add --no-cache
+          build-base linux-headers meson ninja git py3-pip
+
+      - uses: actions/checkout@v4
+
+      - name: Install python dependencies for mctp tests
+        run: pip install --break-system-packages -r tests/requirements.txt
+
+      - name: Configure mctp build
+        run: meson setup build
+
+      - name: Build mctp
+        run: meson compile -C build
+
+      - name: Test mctp
+        run: meson test -C build --verbose
+
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: musl-meson-testlog
+          path: build/meson-logs/testlog.txt
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc2adc2d..90513a75 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
    To support this, the minimum meson version has been bumped to 0.60,
    previously 0.59.
 
+3. CI now includes a musl (Alpine Linux) build, to catch portability issues
+   before they affect the meta-openembedded bump process.
+
 ### Fixes
 
 1. In v2.6. we lost the peer initial MTU sematics, which gave us a safe minimum