fix(ci): install modern protoc in cross container for arm64 build

easel · claude · easel · commit 89ba93d4e409 · 2026-04-12T16:21:08.000-04:00
The Debian apt package for protobuf-compiler in the cross container
is v2.6.1 which predates proto3 syntax. Download protoc 25.3 directly
from GitHub releases instead.

Co-Authored-By: Claude Sonnet 4.6 &lt;noreply@anthropic.com&gt;
diff --git a/Cross.toml b/Cross.toml
@@ -1,4 +1,5 @@
 [target.aarch64-unknown-linux-gnu]
 pre-build = [
-    "apt-get update && apt-get install -y --no-install-recommends protobuf-compiler"
+    "apt-get update && apt-get install -y --no-install-recommends curl unzip",
+    "PROTOC_VERSION=25.3 && curl -fsSL -o /tmp/protoc.zip https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-linux-x86_64.zip && unzip -q /tmp/protoc.zip -d /usr/local && rm /tmp/protoc.zip"
 ]

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`[target.aarch64-unknown-linux-gnu]`
`2`	`2`	`pre-build = [`
`3`		`- "apt-get update && apt-get install -y --no-install-recommends protobuf-compiler"`
	`3`	`+ "apt-get update && apt-get install -y --no-install-recommends curl unzip",`
	`4`	`+ "PROTOC_VERSION=25.3 && curl -fsSL -o /tmp/protoc.zip https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-linux-x86_64.zip && unzip -q /tmp/protoc.zip -d /usr/local && rm /tmp/protoc.zip"`
`4`	`5`	`]`