How to build syncthing for m1 platform on other os or arch?

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1

We want to build syncthing for m1 on github action, but m1 machine is not provied, Help!

2

You’d build it the same way like you build any other go application.

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More or less. go run build.go -goos darwin -goarch arm64 build syncthing will give you a Syncthing for macOS-arm64 that works, without filesystem notifications.

To enable fs notifications you need CGO_ENABLED and linking to the appropriate system libraries. That happens automatically if you build on arm64, otherwise I do this on the build server (which is macOS-Intel):

cat <<EOT > xgo.sh
#!/bin/bash
CGO_ENABLED=1 \
	CGO_CFLAGS="-target arm64-apple-macos10.15" \
    CGO_LDFLAGS="-target arm64-apple-macos10.15" \
    go "\$@"
EOT
chmod 755 xgo.sh
go run build.go -gocmd ./xgo.sh -goarch arm64 zip

If you intend to run it on a machine other than your own you probably need to look into proper signing and notarization as well. That works the same as any other macOS program.

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4

Thanks, it works!!!

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