go build for arm failed: github.com/tjgq/sane/frame.go:14:15: undefined: Format

[Ghardo]

Hello,

i want to compile my code for raspberry pi on manjaro but i got this error

env GOOS=linux GOARCH=arm GOARM=7 go build
 # github.com/tjgq/sane
../../github.com/tjgq/sane/frame.go:14:15: undefined: Format

[tjgq]

I think this happens because Format is defined in sane.go, which uses cgo, and cgo is disabled by default when cross-compiling. You need to set the CGO_ENABLED and CC environment variables. (Search for "cross-compiling" in https://golang.org/cmd/cgo/).

Alternatively, you can avoid cross-compilation by building directly on your Raspberry PI.

[Ghardo]

thanks i compilied it on the raspberry it works now but i got weird scan result on the pi.
scanimage works fine and the scan results are ok

need more time to debug

[edit]
raspberry pi 3+ => nice scan results
raspberry zero w => weird scan results