Does not build on openbsd-arm

[calmh]

As of the current versions of relevant packages (I think), this does not build on freebsd-arm. (It used to be it didn't build on freebsd-arm64, I updated everything to fix that, which indeed works now.)

jb@kvin:../syncthing/syncthing % egrep gopsutil\|org/x/ go.mod
	github.com/shirou/gopsutil v2.20.6+incompatible
	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
	golang.org/x/net v0.0.0-20200707034311-ab3426394381
	golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd
	golang.org/x/text v0.3.3
	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
jb@kvin:../syncthing/syncthing % go version
go version go1.14.5 darwin/amd64
jb@kvin:../syncthing/syncthing % GOOS=freebsd GOARCH=arm go build ./cmd/...
# github.com/shirou/gopsutil/disk
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_freebsd.go:87:52: cannot use stat.Mntfromname[:] (type []int8) as type []byte in argument to common.ByteToString
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_freebsd.go:88:50: cannot use stat.Mntonname[:] (type []int8) as type []byte in argument to common.ByteToString
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_freebsd.go:89:51: cannot use stat.Fstypename[:] (type []int8) as type []byte in argument to common.ByteToString
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_freebsd.go:173:44: cannot use stat.Fstypename[:] (type []int8) as type []byte in argument to common.ByteToString

(I don't envy anyone trying to keep up with the type changes in sys around this...)

[Lomanic]

You have to upgrade golang.org/x/sys to a revision after the breaking change, go get -u golang.org/x/sys should do it, not sure how it reflects on go modules. golang/sys@85ca7c5b95cd is indeed before the breaking change at golang/sys@5766fd3. Please see #853 for context.

[Lomanic]

BTW, I'm humbled to see syncthing is using gopsutil/disk, that's an awesome project, double humbled to see its founder here :)

[calmh]

Oh, I thought I had managed to update x/sys to the latest at the time, but apparently not! Thanks. No humbling necessary. :)

[calmh]

However, unfortunately, the update seems to break openbsd instead :(

jb@kvin:../syncthing/syncthing % egrep gopsutil\|org/x/ go.mod
	github.com/shirou/gopsutil v2.20.6+incompatible
	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
	golang.org/x/net v0.0.0-20200707034311-ab3426394381
	golang.org/x/sys v0.0.0-20200802091954-4b90ce9b60b3
	golang.org/x/text v0.3.3
	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
jb@kvin:../syncthing/syncthing % go version
go version go1.14.6 darwin/amd64
jb@kvin:../syncthing/syncthing % GOOS=openbsd GOARCH=arm go build ./cmd/syncthing
# github.com/shirou/gopsutil/disk
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:95:39: undefined: sizeOfDiskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:99:14: undefined: sizeOfDiskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:125:34: undefined: Diskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:126:9: undefined: Diskstats
jb@kvin:../syncthing/syncthing % GOOS=openbsd GOARCH=arm64 go build ./cmd/syncthing
# github.com/shirou/gopsutil/disk
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:95:39: undefined: sizeOfDiskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:99:14: undefined: sizeOfDiskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:125:34: undefined: Diskstats
../../../go/pkg/mod/github.com/shirou/gopsutil@v2.20.6+incompatible/disk/disk_openbsd.go:126:9: undefined: Diskstats
jb@kvin:../syncthing/syncthing %

[Lomanic]

Fixed in #1052