Go can't get ecc1/medtronic due to undefined: unsafe.Slice

[scottleibrand]

On a newly flashed Edison rig with Debian stretch using oref0 dev, the go get -u -v -tags "$radiotags" github.com/ecc1/medtronic/... command run by oref0-setup fails with:

root@edison-eb5 ~/myopenaps # go get -u -v -tags "$radiotags" github.com/ecc1/medtronic/...
github.com/ecc1/medtronic (download)
github.com/ecc1/cc111x (download)
github.com/ecc1/gpio (download)
Fetching https://golang.org/x/sys/unix?go-get=1
Parsing meta tags from https://golang.org/x/sys/unix?go-get=1 (status code 200)
get "golang.org/x/sys/unix": found meta tag get.metaImport{Prefix:"golang.org/x/sys", VCS:"git", RepoRoot:"https://go.googlesource.com/sys"} at https://golang.org/x/sys/unix?go-get=1
get "golang.org/x/sys/unix": verifying non-authoritative meta tag
Fetching https://golang.org/x/sys?go-get=1
Parsing meta tags from https://golang.org/x/sys?go-get=1 (status code 200)
golang.org/x/sys (download)
github.com/ecc1/spi (download)
github.com/ecc1/nightscout (download)
github.com/ecc1/radio (download)
github.com/ecc1/papertrail (download)
golang.org/x/sys/unix
# golang.org/x/sys/unix
../go/src/golang.org/x/sys/unix/syscall.go:83:7: undefined: unsafe.Slice
../go/src/golang.org/x/sys/unix/syscall_unix.go:118:7: undefined: unsafe.Slice
../go/src/golang.org/x/sys/unix/sysvshm_unix.go:33:7: undefined: unsafe.Slice
root@edison-eb5 ~/myopenaps #

cc @ecc1

[scottleibrand]

The file sysvshm_unix.go doesn't exist, neither on this system nor a working one:

root@edison-eb5 /usr/local/go/src/cmd/vendor/golang.org # ll x/sys/unix/syscall.go
-rwxr-xr-x 1 root root 2036 May  6  2019 x/sys/unix/syscall.go
root@edison-eb5 /usr/local/go/src/cmd/vendor/golang.org # ll x/sys/unix/syscall_unix.go
-rwxr-xr-x 1 root root 9420 May  6  2019 x/sys/unix/syscall_unix.go
root@edison-eb5 /usr/local/go/src/cmd/vendor/golang.org # ll x/sys/unix/sysvshm_unix.go
ls: cannot access 'x/sys/unix/sysvshm_unix.go': No such file or directory
root@edison-eb5 /usr/local/go/src/cmd/vendor/golang.org #

[ecc1]

It looks like the golang.org/x/sys/unix package no longer works with versions of Go earlier than 1.18.

I'd suggest installing https://go.dev/dl/go1.19.1.src.tar.gz in oref-setup, and then using commands like these to build the required medtronic commands:

go install -v -tags cc111x github.com/ecc1/medtronic/cmd/mdt@latest
go install -v -tags cc111x github.com/ecc1/medtronic/cmd/pumphistory@latest

etc. The first one will download all the dependencies, and subsequent ones will be fast.

[scottleibrand]

Thanks. Fix pushed to dev.